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I have always been a big fan of Harman/JBL speakers. Despite being based on a several year old design I still think the latest go&play wireless version to be one of the best looking and sounding boomboxes around, with the only downside of a castrated sound when run from batteries. I was also very impressed by the JBL Radial, when I heard it for the first time, as well as the JBL On Stage 400-Series, which produced quite a big sound despite being rather small.
So far unfortunately none of the real portable and battery-driven speakers from Harman or JBL managed to convince me. The JBL Charge being larger while costing only slightly less than the Bose Soundlink Mini is not able to produce such a convincing sound as the Bose.



The Onyx seemed to me the perfect reincarnation of the original and iconic go&play design but considerably smaller with a built in battery and hopefully with a similarly mature sound. I like unusual designs for speakers, as I liked the trumpet or vuvuzela design of the Parrot Zikmu, as well as the simple cylindrical design of the Libratone Zipp.
The Onyx looks a bit like an egg at least from the side, but the design as a whole including the steel handle would make it quite attractive within a modern interior, which is why I directly ordered an Onyx as soon as it became available.

The Onyx came in a big but surprisingly light box. I really expected something much heavier, but during unboxing you'll notice that most of the space is just taken up by air, as the speaker is rather compact with only added bulk due to the angled steel handle, which unfortunately is not rotateable, so that you cannot flip it in-line with the speaker to really make it flat for transport. Apart from the handle the speaker just measures 16cm at its thickest spot. It is a real pity that Harman didn't think of such a detail, as a rotateable handle would make the speaker much more convenient for transport so that you could just toss it inside a rucksack or bag. As it is now, it needs a bigger bag to really fit in.



I wouldn't like to carry the Onyx around without any protection despite the convenient carrying-handle. Although the materials are overall really of high-quality, the aluminium passive radiator or even the leathered-back could be easily damaged or scratched without any protection during transport.
I don't understand the choice for a leathered back. Although it might appear pretty slick together with the shiny passive radiator, most of the time you won't even notice it, as the speaker would normally be aimed towards the listener and not with the back-side. This is not a 360° sound system and sound degrades considerably when listened off-axis.


The price for the Onyx is quite steep (499$ or 499€) and among the highest for this kind of portable speaker. Even the go&play costs 1/3 less and I am sure the price for the Onyx could have been lowered, if the some parts were made of simple plastic. Apart from the leathered back the ring around the main body is of a rubbered material and contains all touch-sensitive buttons, while the front consists of a rather cheapish cloth-cover, that can also be removed if necessary.
For my own taste the black cloth-cover degrades the looks of the otherwise high-grade speaker. When touched it becomes dirty pretty fast, and I am sure the cloth will be the first part to show signs of wear, if the speaker is really taken outside often and not only used at home without being moved around. At this price level I would have preferred a wired mesh similar to the go&play to tell the truth.


If the cover is removed the acoustic core of the Onyx is revealed consisting of 2 full-range drivers and 2 tweeters as well as another opposing passive radiator at the front that works together with the one at the back to minize vibrations of the whole speaker. Both reinforce the low frequencies (the backwards movement of the active drivers) that would otherwise be lost within the speaker. A ported design as an alternative would probably be less efficient with such a flat and compact body.
I was a bit surprised to see the actual paper-cone drivers, as they look pretty cheap, like some simple speakers bought from Radioshack.


I expected Harman Kardon to use some more sophisticated and high-quality drivers. It also catched my eye that the drivers were not mounted totally centered but rather offset slightly within their openings. Maybe this is nitpicking, but we are talking about a pricy design-object, where I would expect a bit of perfection.


At the bottom back there are some connection ports as well as a WPS-button for quick router-connection. The Onyx does not only support a simple Bluetooth connection (including a quick NFC connection, which is pretty useless for Apple-users until Apple finally decides to support NFC) , but can also act as an Airplay speaker as well as a DLNA renderer. The Onyx is not bound to the Apple universe, but can equally be used from Android-devices or simple Bluetooth players which don't support any Wifi connection. Harman Kardon claims that the included Bluetooth protocol also supports the much superior Apt-X codec (which again is not supported by iOS devices yet and couldn't be tested by me).
I switched a bit back and forth between Airplay and Bluetooth and didn't notice any big differences in audio, despite only using the worse-quality AAC-codec for Bluetooth, but maybe the tested music was not that revealing.


To tell the truth I haven't figured out if the USB-port is only for charging external devices, or if  it can playback music from any attached player as well, but I wouldn't use this feature anyhow because the ports are overall placed in a bit hard to reach place. Every time I wanted to attach the power-cord after having used the Onyx from battery, I always had to take accurate aim to actually fit in the cord. The space between the bottom part of the handle and the recessed ports is quite narrow. I would have welcomed a kind of additional charging cradle, where you could just place the speaker for simple charging. I am sure though, Harman would charge even more for such a feature...


The touch controls at the top of the speaker light all up as soon as the corresponding area is touched. The first time I tried to turn it on, I pressed every single area, including the WPS-button, but nothing happened. It seems you have to keep the area around the power-symbol touched for at least about 3 seconds, then the speaker comes to life! The symbols light up, but go off again after some seconds, the only lights that always remain lit are the power-symbol and the Wifi and Bluetooth symbol. It's strange that Harman didn't also keep the volume-symbols lit. There are 5 distinct volume-dots, that symbolize the current volume-level. If you turn the volume louder, one dot after the other will first brighten up, until it reaches full brightness, then the next dot starts to brighten.
Maybe Harman thought the touch-sensitive area as a whole would be enough and any user would just touch there and then swipe to the left or right in order to get the right volume. But it is not that easy, as you don't see where the minimum or maximum volume is before touching, you might touch the area in the middle and the speaker would scream up with a higher level than wanted. I still haven't found out, if you have to swipe to the right to turn it louder, or if it is enough to simply touch near the desired volume-area. You can also use the +/- areas (which are not lit either until you touch them), but you need to hold them pressed for about a second until the Onyx quickly jumps to a much lower or higher volume.
I found controlling volume through the touch-field being quite cumbersome. I didn't manage to tune volume fine enough like this. Either it was too loud or too soft, or it unexpectedly started to play near maximum volume so I rather preferred using the volume slider on my iPhone or even its volume buttons. The absolute volume level is mirrored on the player by the way (regardless if played through Wifi or Bluetooth) which is quite nice, as you don't need to deal around with 2 separate volume-levels, like you have to do on the Bose Soundlink for example. 2 separate volumes can lead to further sound-processing artefacts, for example if you turn your player to the minimum and turn the Soundlink to the maximum it will sound different, than if the speaker is set low while the player is maxed out. No such effects with the Onyx thank godness.


Establishing a wireless connection is not a big deal with the Onyx. Keep the Wifi-symbol touched for a certain time and the Onyx will setup an own Wifi-network which you can connect to from your mobile device or computer and setup the connection details to your router. By dialing in 192.168.1.1 into the browser you'll get access to the Onyx' configuration site, where you can also start a firmware update or even dig deeper into the settings through the manual configuration tab. A quicker method might be just pressing the WPS-button, but i haven't even tried it like that.
The same goes for Bluetooth, keep the symbol touched and the Onyx will jump into pairing mode.
Both types of connection are confirmed by the same loud "bleep" which is a bit too loud for my taste. If connection is lost or canceled another annoying tone is played. Bluetooth range is quite impressive. The Onyx did repeatedly pair with my iPhone, standing in the opposite corner of our house. Due to the confirmation tones this could be quite distracting, especially if it automatically tried to pair at night when everyone was already sleeping.
I have not figured out if you could turn off Bluetooth or Wifi completely in case you would like to save some battery, as Wifi seems to be active whole the time. The light just turns red if no connection is established but it still seems to be active, because when I return home with the Onyx it automatically connects to my network as soon as it is close enough.
After a certain time the Onyx automatically jumps into standby-mode when no music is played. It is still shown as an available Airplay device, but the Powerlight is red, and the speaker probably running in some kind low-power mode.
If the speaker is streaming through Bluetooth currently while another stream is started through Wifi for example, the newer stream has priority and takes over the speaker.

So, how does it sound?
I hoped it would at least knock my socks off in the same way as the go&play did, when I heard it the first time many years ago. The Onyx sounds good, but it didn't impress me that much as many other speakers did in the meantime. It is more expensive than many other contenders but sounds only marginally better, in case of the go&play even worse.
But let me explain first. When I unboxed the Onyx after coming home from work it was already quite late until i finally managed to turn it on. I couldn't really crank it, but rather had to listen at lower levels thus remained pretty unimpressed.


For direct comparison I put the minuscule Bose Soundlink Mini (which is by far my favorite ultraportable speaker now) besides and switched back and forth between both with matched levels only to find out that the Mini put out a more serious and mature sound than the Onyx. At lower levels (I would say comfortable room-volume for background listening) the Onyx sounds hardly any better than a good kitchen radio with a bit of a honky sound. The sound remains quite mid-focused without any mentionable bass and even treble remains a bit recessed. We are talking about levels within a frame of 15-20% on the Onyx' volume scale, which corresponds to about 30-40% of Bose's Soundlink Mini volume. Of course the Onyx can play much louder than the Soundlink Mini (I would say it reaches about twice the loudness), which is not the question here. If you want some low background music the Onyx just cannot impress. It only starts to really live up to its expectations if you turn it above 30-40%, but it performs best and sounds perfect at about 50-60%, which is pretty loud already and considerably louder and more powerful than the Bose Soundlink Mini at its maximum volume for example. That's still quite impressive for Bose considering the drivers of the Soundlink Mini are just about the size of the Onyx' tweeters.

In the following video I tried to compare both the Onyx and the Soundlink Mini with matched volumes as close as possible. The Onyx was playing at 35%, while the Soundlink was about 70%. Overall the Onyx has a more defined sound, but the Soundlink Mini keeps up pretty well. At lower levels the Soundlink mini manages to produce a more powerful sound, while the Onyx has the edge at higher levels and can also play much louder.



I am not sure if the weaker performance at lower volume is because of the higher inertia of the passive radiators, which don't become fully effective until higher levels are reached, or if Harman just didn't tune the DSP well, as I didn't notice such a strong volume dependent sound degradation with the go&play for example. Harman or JBL are known for their DSP processing and dynamic bass adjustment, but in case of the Onyx something seems to have went wrong.


When directly compared to the Harman Kardon go&play, the go&play produces a deeper and fuller sound. The Onyx might sound a bit more natural, but the go&play is much more enjoyable, bass is tuned lower, i would assume about 10Hz lower. The technical sheet is claiming 55Hz as the low frequency limit for the Onyx and this seems to be more or less the reality. Although you can still hear a bit of "vibration" below 50Hz, it hardly has any amplitude any more. The lowest usable bass-frequency seems to be around 50Hz, while I would estimate the go&play of being able to play down to 40Hz. The Audyssey South of market Audiodock even had usable 35Hz at lower volumes, despite being not really much larger in volume than the Onyx. Interestingly the Audyssey had neither passive radiators nor a bassreflex port and therefore impressed me even more performancewise than the go&play, which was the reason why I finally sold my go&play some years ago. Unfortunately my Audyssey died after one year and I couldn't get an exchange from the store, so I returned it completely, although it impressed me a lot as a speaker.

I tried to compare the Onyx to some other speakers I don't currently own and took it to a store with me, where I was able to listen to it side by side with a Bose Sounddock Portable (I already sold mine some time ago otherwise I would have been able to compare it at home as well), a Libratone Zipp (also sold) and a Cambridge Audio Minx Air 200.


The Onyx sounded more powerful than the Sounddock Portable at higher levels, but as expected the sound was less impressive than the Bose at lower levels. I would say that both played more or less on the same level, with the Onyx having a bit more punchy bass, but the Bose sounding clearer in treble. Not a bad result for Bose, as the Sounddock Portable acoustic design is already several years old, but still holds up pretty well.


The Libratone Zipp lost completely. When the Onyx was at its best at about 50% volume, the Zipp already distorted on heavier bass sounds, nowhere able to reach the levels of the Onyx. The Onyx had a much more punchy sound, the Zipp sounding hollow and tinny. The Zipp had clearer treble due to the ribbon-tweeters, but overall sound was artificial and thin, especially regarding mids.


The Cambridge Audio Minx Air 200 is in another speaker-category, it is larger, not meant as a portable speaker, but costs about the same as the Onyx, that's why I wanted to compare both anyway. At normal levels both sounded pretty similar, it was only at higher levels, that the Minx Air 200 started to have an advantage with a more powerful bass, but I was not able to really listen to both at high levels for long not to be kicked out of the store.


Overall there were no big surprises even compared to many other speakers. The Onyx definitely sounds good, but it doesn't have the "wow"-factor, many other speakers manage to create.
It cannot compete by any means with my Philips DS9800W Soundsphere speakers which I currently use as my main listening solution as the Onyx sounds rather like a mono kitchen-radio when directly compared. It was only at high levels and bass-heavy music that the Onyx produced some distortion. It was not severe, but noticeable. Also bass is not that strong anymore at higher levels than 70%, so that the speaker plays loud, but without the bass power you would expect.
I also noticed slight vibrations of the enclosure with particular piano-notes, nothing too serious, but pure piano music at louder volumes could sound bad on the Onyx. First I thought the front cover was to blame, but it seems the drivers are causing the vibration.

Here an additional outdoor video showing off the Onyx, volume was between 50-80%, where the Onyx sounds best:


My hope was that there were some further adjustments available from the Harman Kardon remote app. I downloaded and installed the app for iOS only to notice that it crashed every time I wanted to start it. Later I discovered that the app indeed worked but only through a Bluetooth connection while Wifi remained turned off. At least now I could try the features, but noticed that there are hardly any additional parameters available for tweaking. The app acts rather like an additional music player.


At the main page all available players appear, in my case only the Onyx. But sometimes the Onyx din't appear at all, I had to restart the app or the speaker so that I finally had it selectable in the app. The app has its own device control panel where you can see the remaining battery as well as the current streaming mode. There is also a stereo-widening option, which doesn't do much harm to the sound, but doesn't broaden it up really much either. It was turned on from the beginning and I kept it turned on, because it sounded quite acceptable without any annoying artefacts (like Liveaudio from the Jambox for example), but don't expect any miracles. The Onyx still sounds rather like a mono sound source, except if putting the nose against the cover.


Although there is another EQ-like symbol at the bottom right of the app, the corresponding panel is empty in case of the Onyx with the exception of a single volume-slider. Maybe there will be further updates which will allow additional EQ-tweaking, but as there are several other Harman devices listed, I would rather assume that those devices might have some further EQ-options which are simply not available for the Onyx. But at least you can even turn off the speaker remotely form the app, if really needed.
My wish would be some simple "loudness" switch, which would compensate for the sound-loss at lower volumes. So far only Bose, B&O or Audyssey really seem to care to optimize sound for low volume output.

Battery life was around the promised 5 hours. I tried to listen at levels near 50% where the Onyx sounded best streaming through Bluetooth and managed slightly above 4 hours until the speaker turned off on its own. I also tried mixed streaming through Wifi and Bluetooth at lower levels (about 20-30%) and it played for 5 and a half hours. So the streaming-unit seems indeed to be the limiting factor here as Harman promises 8 hours with wired connection. A pity as 4-5 hours of portable use are certainly not enough for a day at the beach or a fireside-party in the evening where louder levels might be necessary.
Not sure what happens after some years of usage when the battery starts to lose its capacity even more. It doesn't seem to be replaceable at all. This is quite a drawback with a product costing that much. Maybe the Onyx can be sent in for a replacement at a service-center.

Upcoming I am going to compare the Onyx to the brand new and quite similarly designed Libratone Loop which also costs the same. Unfortunately delivery of the Libratone Loop was delayed, as I am going to send the Onyx back, I won't be able to compare both anymore.

To conclude I would claim that the Onyx is definitely a nice sounding speaker that has its spacy looks but it doesn't give any surprises regarding sound. It can play pretty loud but has its limits, as sound starts to deteriorate above 75%. It also sounds quite sub-par at low levels, so you always feel forced to turn it louder.
I wouldn't recommend the Onyx as a portable Boombox but at the same time there are also much better stationary speakers, like the Philips Soundsphere which meanwhile can be had for about 320$. If not the hardware issues which I also experienced with my model, this would indeed be one of the best sounding Airplay speakers I would recommend to anyone.
As a portable Boombox I would definitely choose the Klipsch KMC-3 over the Onyx. It is larger for sure and doesn't look like a UFO, but it puts out a much more impressive sound and it is cheaper too. The missing internal battery of the Klipsch can be easily fixed with an external Powerbank. Not sure about the new and smaller KMC-1, as I haven't heard it yet, but I doubt the smaller Klipsch can compete with the Onyx regarding high volume output. Even the old Sounddock Portable might be a better solution as it produces similar sound as the Onyx, but is smaller and has better battery life.
I was a bit disappointed with the overall quality of the Onyx. It seems to cheat top-quality but at closer look makes a rather cheap impression. There's a catch with the price which is overpriced by 30-50% in my opinion. The Onyx does by no means produce sound worth 500$ and the leathered back as well as the shiny passive radiator don't compensate for this.

+ spacy and elegant design
+ compact
+ precious materials (especially at the back)
+ all possible wireless streaming modes available (incl. NFC and Apt-x)
+ good sound with punchy bass at medium levels
+ can play pretty loud
+ impressive Bluetooth range
+ app support
+ mirrored volume on speaker and streaming device in all wireless modes (incl. Bluetooth)

- too expensive
- cheap front cover
- handle cannot be rotated for an even flatter design
- sound unimpressive at lower volumes
- starts to sound harsh and distorted at high volumes
- unimpressive battery life (4-5 hours)
- battery not replaceable
- iOS app crashes when connected through Wifi
- no further sound customization through the app 
- loud confirmation tones when connecting through Wifi or Bluetooth 

 
We all know that the Jambox is just a piece of overpriced garbage... well the truth is, the original Jambox was nevertheless something like a game-changer for the whole portable speaker market.
Up to then all portable speakers were either small and sounded tinny, or they were too large to really be called "portable".

When the Jambox was announced about 3 years ago, there were hardly any comparable speakers available. The Jambox was overpriced for sure and it should have cost half of its original price already from the beginning. Even before the Jambox and something like its inofficial "father" there was already the FoxL from Soundmatters, but it never became as popular as the Jambox, which I never understood. Maybe it was the design of the Jambox, which made it look like anything else than a speaker, but I didn't care much about the strange Steve Behar design and all these regular geometric patterns, I really never liked nor did I understand them. Therefore I understand even less, why so many copycats tried to use similar patterns for their speakers, meanwhile there are so many cheap replica on the market that try to look like a Jambox, which looks just ugly in my opinion. A simple metal grille would look much more elegant in most cases than all those patterns.
I compiled a quick collage of some examples that are just brash copies of the original design, some look extremly close!


Apart from the unique design some of its features were also pretty new by then. The Jambox had the option for firmware updates, something no other speaker offered at that time. Bit by bit Jawbone offered new functions to the Jambox through updates, one of them being "Liveaudio" which was quite of a mixed bag and only worked with particular recordings, another late update finally allowed to turn off all voice prompts or status sounds. Unfortunately many copycats also started to use the same voice prompts in their speakers: "the speaker is now in pairing mode...", you can hear this phrase in every second speaker now. They also copied all the turn-on or turn-off sounds, and it seems they really took the worst they could find and meanwhile nearly all portable Bluetooth play sounds that nobody needs at all, or they talk to you...

In reality the Jambox didn't sound that good, but it managed to create a more full-bodied sound than the small size would suggest. Thanks to its acoustic design from Soundmatters with their "twoofers" and the back passive radiator being actually the battery, the Jambox was able to produce a fuller sound than most other even larger speakers. But it was far from perfect, it didn't play very loud, all samples I have tried had some resonance-issues with particular frequencies (see my teardown here, where I tried to fix it, but never really succeeded) and if we compare the Jambox to the Bose Soundlink Mini today, which is only slightly larger, the Jambox sounds like a toy. Bose finally showed last year with the arrival of the Soundlink Mini what kind of sound is achievable from a speaker that small. They had already showed off big sound in small speakers like with their Computer Music Monitors, and my hope was that one day Bose might make a portable version of it. They didn't, but surprisingly designed a completely new speaker: the Soundlink Mini.
Since then the Jambox had hard times to survive, the price dropped and now Jawbone finally discontinued it. You won't find the original Jambox on their site anymore. Suddenly all copycats started to copy the Soundlink Mini, but so far I have not heard a single one which would come even close, despite all the criticism about muffled sound or boomy sound, the Soundlink Mini remains a pretty unique sounding speaker that small. The only speaker that might have an edge over the Soundlink Mini, although still not perfect, is the new Sony SRS-X3 that I reviewed here.

Unfortunately the Sony is even slightly larger than the Soundlink Mini. What is missing though, is a really portable solution, smaller, lighter, but still being able to produce a convincing and full-bodied sound. I tried many ultraportable speakers, like the JBL Micro Wireless, the TDK Trek Micro,... and although they sound quite acceptable for their size, they are still far away from impressive sounding.


In the meantime Jawbone had announced the Mini Jambox, a smaller and lighter version of the Jambox, and they had the chance to really improve things and make the speaker something outstanding. The Mini Jambox didn't seem to be the success Jawbone had expected, so the price fell pretty quickly too, and when the price jumped below 100€ I finally grabbed one to try it out and compare to some other speakers I currently had at home.


Designwise the Mini Jambox is a huge improvement over the old design. Not only the Mini Jambox is roughly half the size of the original Jambox, it is the aluminium body, the clean and polished look, and altough I still don't like most of the offered patterns ("diamond", "graphite", "snowflake", etc), the dottet one looks best and together with the neutral silver color the Mini Jambox manages to look just as classy as the Bose Soundlink Mini.


But what can you expect from something that small? The Mini Jambox is full of useful features that I would like to elaborate on a little bit and as my neighbour still owns the old Jambox, I also wanted to see if the shrinking made the sound much worse or maybe even improved some things?


What I really love about the Mini Jambox is its size. It is even smaller and lighter than the FoxL which I often carry inside my trousers pocket if I need a portable speaker. Usually I would have loved to take the Soundlink Mini instead, but it is just too large to really be packet away without being noticed. This is where the Jambox fits the bill. It slips into my shirt-pocket and I don't think about it anymore. It weights nearly 100grams less than the old Jambox and slightly more than 1/3 of the Soundlink Mini.


I especially like some of its features. The Mini Jambox supports multipoint pairing through Bluetooth and it is the first speaker I have tried where this functionality is finally implemented well. The Jambox Mini automatically reconnects to all already known devices unlike many other speakers where you have to force Bluetooth connection every time again. On the Mini Jambox this means that if you are already connected to it streaming some music and your wife comes home her mobile phone will automatically pair to the Mini Jambox as well and you will hear a confirmation beep. Now your wife could start playing some music, then your playback will be automatically stopped! Really cool, no need to reconnect, repair, or stop music. Just press play, and you can switch from one device to the other.
The Mini Jambox also supports wireless pairing with another Mini Jambox, Jawbone calls this Multiplay, which is possible in either unisono-mode or real stereo. I haven't tried that yet, but I am sure it should enhance listening experience even further. The pairing process seems pretty straight forward as you can see here.
Other new features include track control through the Play/Pause button, which was somehow missing on the old Jambox. With double press you can switch to the next track, three presses will take you a track back and you can of course take calls with the same button, as handsfree is built in as well. This is quite nice, as you can do nearly all directly from the Mini Jambox without having to touch your mobile phone at all as even the volume is now synced between the devices! Really helpful and how it has to be done in a Bluetooth speaker!
Thank godness the Mini Jambox also has the "silent mode" which turns off all sounds and voice-prompts. You enable it by keeping the play-button and minus-button pressed simultanously before turning the Mini Jambox on. Strangely the Mini Jambox will still hum with a deep bass note when turned on or off even sounding slightly distorted!


I was very curious to hear how the Mini Jambox sounds, as I have never heard it in person yet. The Mini Jambox seems to use the same new slim drivers of the FoxL Dash7, otherwise such a compact body wouldn't be possible. The battery is still acting as passive radiator, but it is forward firing this time, making the back completely closed without any grille but with the same front-pattern. Allthough bass is rather non-directional it is still better to have it emit directly frontally rather than to the back, like it was on the old Jambox otherwise you would always need some back-wall to reinforce it, because when standing completely free it would rather get lost in the distance.

 
According to Jawbone there is a DSP on board now, that's why the sound is so "incredibly rich" at lower volumes. Well, in reality it is everything else than rich. My impression was that it sounds like an old muffled transistor radio when I played some first tunes. The loud power on tone will sound more powerful than every music you throw at it and the Mini Jambox sounds even more veiled than the Bose Soundlink Mini. Especially at low levels I could hardly hear any of the claimed richness.
Before going into detail, I will first post a frequency response measurement which shows how the Mini Jambox compares to the Soundlink Mini. Volume was normalized with pink noise at 65dB for both speakers, which corresponds to pleasant background listening volume. As you can see the frequency response of the Mini Jambox is surprisingly flat (within +/- 3dB) from about 170Hz to 12kHz, but there is hardly any bass below 100Hz with rolloff already starting at 170Hz while treble already starts to fade above 12khz which seems to be the reason for the even duller impression the Mini Jambox gives over the Soundlink Mini. The Mini also has strong treble rolloff above 12kHz but the whole frequency-band above 3kHz is already boosted, so it won't stand out that much. You can also see from this curve how much more bass the Soundlink Mini is able to produce:

Now comparing the Mini Jambox to the original Jambox, the differences are not huge at the first look. The old Jambox doesn't have this strong treble roll-off, but it has quite a big dip at 12kHz.

 
This could be interpreted as a big advantage for the Mini Jambox being able to produce similar audio despite being nearly half the size, or also a big letdown because the Mini Jambox is not able to offer that much improvement over the old version. In reality it is indeed an improvement. Although both still sound pretty similar, the Mini Jambox sounds less stressed with a more solid sound, while the old Jambox sounds rather compressed and somehow dirty. This is especially noticeable at higher levels on the old Jambox, where you will hear distortion creeping in already far below maximum, while the Mini Jambox will overall sound cleaner. Both have a comparable maximum volume, depending on the music either the Mini Jambox or the old Jambox can be slightly louder. But while the old Jambox compresses dynamics to achieve a higher maximum volume (similar to what Bose does with the Soundlink Mini at levels above 75%), the Mini Jambox remains without that obvious dynamics processing resulting in a more natural sound but with slightly less bass at the same time. With some tracks you might even notice pumping effects with the old Jambox, which means that the whole music suddenly becomes lower when a bass sound is played to become louder again when there is no bass anymore. I haven't noticed anything like that with the Mini Jambox.

Things change a bit if you enable "Liveaudio". Liveaudio does not only open the stereo-image quite much, but it has also some influence on the overall frequency response. With Liveaudio the Jambox gains quite a bit of bass and it becomes clearer with higher frequencies at the same time. The difference doesn't look serious from the graph, but including the enhanced stereo-field the sound becomes much more profound and large. I think it is especially the BACCH crosstalk canceling filter (this is what Liveaudio is based on) which adds to the overall effect.

The Mini Jambox seems the first speaker where Liveaudio really is a benefit, assumed the listener and the speaker are located at optimum positions. I have tried Liveaudio on the old Jambox and on the BIG Jambox, but neither of them was sounding that convincing as the Mini Jambox. Maybe the filters were tuned even better now, or the drivers are just better in the new version, because with the old Jambox I got pretty heavy resonance issues when I tried to listen to some music with Liveaudio turned on.

Liveaudio usually works best with binaural recordings, it works with normal stereo-recordings too, but you might get overly exaggerated stereo-effects. With binaural recordings the effect will be outstanding and very realistic though. I have listened to some nature recordings and with the Mini Jambox placed directly in front of me I got the impression of being totally surrounded by sound, it is more impressive than a 5.1 surround setup. I didn't experience lots of back-localisation, but the sound comes much farther from beyond the speaker edges, than most other stereo enhancing algorithms I have heard so far. The best distance seems to be around 50cm from your ears. You can also try longer distances up to 1 meter, but 50cm seems to be the sweet spot. For biggest effect just lay down on your couch and place the Mini Jambox on your belly. You will probably have to lay it down flat, otherwise it won't stand upright, except if you have a hard and flat sixpack. Now play some binaural recordings like the youtube video above, or listen to Ottmar Liebert's "Up Close" which was recorded with a real dummy head, and enjoy!
Thanks to Liveaudio finally binaural recordings can be enjoyed through speakers as well, otherwise binuaral stereo only worked well with headphones.
The problems start when the speaker is not placed optimally anymore. Turn the Mini Jambox away slightly so that the drivers are not facing you anymore and you will notice that the mix starts sounding different. Reverb effects become more pronounced, background sounds might become too loud. Keeping Liveaudio on whole the time is not a solution if you just want to place the Mini Jambox somewhere and walk around, as it will really only sound good when placed in front of you at the perfect distance or close to it.
Another issue is Liveaudio introduces a slightly lower maximum volume, this is probably due to the crosstalk filtering, which has to compensate for some frequency loss and therefore boosts several frequency bands to avoid sound colorations. It is not that severe as on the old Jambox which became about half as loud with active Liveaudio, but on the Mini Jambox Liveaudio will still give a slightly lower maximum volume than without. When switching between both settings you will also notice how the volume-bar on your player jumps up or down, as Jawbone tries to match both levels not to make this difference that obvious. It is just at maximum volume, where you cannot match them anymore.


The only speaker which has even more loudness-issues than the Mini Jambox is the Soundmatters FoxL (I still have the 2.2 Version). Although the FoxL can play quite a bit louder it will already distort quite heavily at levels where the Mini Jambox still sounds clean. But this is probably the price you have to pay for a speaker that small, still I would have loved a little bit more power and a little bit more bass-punch especially at low levels. I measured the Mini Jambox at 55, 65, 75dB and at maximum volume and you can notice a stronger bass reduction at maximum volume, but the claimed bassboost at lower levels is hardly noticeable:

For a better view I normalized the graphs for all volume levels shown above, and you can indeed see slight differences in the amount of bass and treble depending on the volume, but from 65dB down to 55dB there is less than 4dB of bass increase, and while 55dB is already quite a low volume, the frequency response seems most linear at this level only to further reduce bass and treble at higher volume settings. In my opinion it should be the other way round, more bass-boost at lower levels, and a rather linear response at 75-85dB.

As the sound of the Jambox is quite thin on its own (missing any deeper bass frequencies) it will give an even thinner impression at low levels, due to the human ear becoming less sensitive for lower frequencies at low amplitudes. There should be much more of a bass enhancement at lower levels than now. You rather get a bass-reducer at high levels, than a bass-booster at low levels.
It is only when directly compared to the old Jambox or the FoxL, that the Mini Jambox sounds slightly more full-bodied at lower levels (the example below was measured at 55dB). Here you can really notice an advantage for the Mini Jambox and that the dynamic processing although subtle does its job.

 
For my taste it is just not enough, I don't expect the boomy kind of bass Bose usually does, but a bit more punch would be welcome, therefore I tried playing around with various equalizing apps for iOS and found that the Mini Jambox responds pretty well to stronger frequency boosts without producing any kinds of artefacts or distortion, this is probably also the reason why Liveaudio works so much better with the Mini Jambox, as the sound remains stable even with stronger equalizing. For my taste Bongiovi DPS gave the best result because usually with most apps you have to lower the gain if you boost some frequencies too much. Bongiovi DPS on the other hand seems to really boost the overall sound and manage to keep the same volume at the same time unlike the preset EQs from Apple like "bassbosster" that rather takes away high frequencies instead of boosting lower ones. With the Bongiovi DPS app the Mini Jambox sounded best when enabling the "Annapolis" profile and adjusting the EQ for additional bass and treble boost like this:

With this setup the Mini Jambox will sound fuller and larger and it will even play slightly louder than without any processing. Of course processed like this there might be some slight distortion introduced on very bassheavy tracks when played at higher levels, but overall distortion is still pretty well under control, what surprised me most. Such a strong bass-boost would not be possible with the old Jambox, because the whole body would buzz and rattle. However Bongiovi is better suitable for lower levels, as a kind of poor man's loudness function, which unfortunately is not dynamic. Of course one can go even further and try using Bongiovi together with Liveaudio for maximum effect, this will result in a really BIG sound and interestingly obvious processing artefacts or stronger distortion are still missing, at least if you don't exaggerate setting the volume too high.
I tried to prepare a video where I switch between normal audio, "Liveaudio" and the Bongiovi processing. I think Bongiovi DPS manages the most convincing audio boost, although it won't give you that strong stereofield from "Liveaudio". Both Bongiovi DPS together with Liveaudio sound most impressive although it might already appear a bit exaggerated, have a listen:

I also experimented with flat positioning which can boost bass even further on particular surfaces. It is a pity that Jawbone didn't think about this feature and made the back-side completely rubbered, because due to the single passive radiator the Jambox can vibrate slightly. When laying flat it tends to rattle against the base at higher levels, some cloth or fabric below will help to avoid any rattling.
The vibration is not as strong as with the old Jambox btw. and I didn't notice any problems with stonger creeping or dancing around, the Mini Jambox usually keeps its position, but the bottom surface only has 2 little rubber feet, which are not enough to securely keep the Jambox stable on uneven surfaces. I tried positioning it on concrete several times and I could feel how the aluminium was touching the base, instead of the rubber feet. The whole bottom should have been one big rubber foot, because as it is now any less smooth surface might scratch the body from below, especially at higher levels, where the Mini Jambox starts to rattle against the base.

I think as personal speaker and not so much as party speaker the Mini Jambox can mostly convince. It won't give you the heavy sound of Bose, but with enabled Liveaudio and the right recordings it can sound very appealing. I would have only preferred some stronger sound adjustment at lower levels. But even now the Mini Jambox sounds better than most models from the competition that are by far not as portable and compact. I found the Mini Jambox to sound more natural than the JBL Flip which has an extremly boosted treble, while having even worse bass extension despite being larger, on the other hand the JBL Flip doesn't suffer that much from treble loss when heard from an angle, while the Mini Jambox will sound rather dull, you cannot have it all!

 
I also found the Mini Jambox to outplay the Sony X2, especially with enabled Liveaudio the sound coming out of the Mini Jambox was heavier and more impressive.


I prepared a video with a direct comparison to the original Jambox. I think you can hear that the Mini Jambox sounds somewhat less stressed, especially at maximum volume the original Jambox shows obvious distortion, while the Mini Jambox stays pretty clean even with active Liveaudio, which becomes pretty distorted on the original Jambox.

Here is another video comparing the Mini Jambox against the Bose Soundlink Mini which might appear a bit unfair due to the size difference. But originally the price difference between both was not that high, therefore someone how doesn't care much about size, will probably decide on sound quality alone:

The only thing you might be missing from the Mini Jambox is high volume. So if you need high volume by all means, look somewhere else!
I would have never paid the original asked price, but below 100$ the Mini Jambox might be quite a good choice for an ultraportable speaker. Although meanwhile there are lots of different options from other companies, none of them is really that small, and none of them sounds really that much better (except louder of course)! In any case the Mini Jambox is a big improvement over the old Jambox, which now gives an even more toyish impression. I am also finally going to sell my FoxL now, as it will be replaced with the Mini Jambox. The FoxL has still a surprisingly more refined sound although I was finally hoping for something that would outperform the FoxL. Nevertheless the Mini Jambox is the much better speaker with considerably better features, longer Bluetooth reach, better shielding against mobile radio and just better design, not to forget Liveaudio which really sounds great with the Mini Jambox now.

Now I still hope for some similar sized model, which might add a bit more loudness and even better bass extension with all the nice features the Mini Jambox already offers now.
By the way what about a "Soundlink Micro", Bose are you listening?
Maybe such a small speaker from Bose will finally sound more balanced, as they probably won't be able to push bass as much!

+ great design and high quality aluminium finish
+ smaller and more portable than similar models
+ balanced sound without obvious frequency-humps
+ Liveaudio adds fullness to the sound and incredible 3D-effect to binaural recordings
+ multipoint Bluetooth connections with automatic repairing
+ pairing of 2 speakers for unisono mode or wireless stereo
+ synced volume between streaming device and speaker
+ track control through the speaker
+ no distortion up to maximum volume
+ all unnecessary voice prompts or sounds can be turned off completely
+ long battery life 
+ allows firmwareupdates 


- muffled treble (no upper treble above 12kHz) 
- too light on bass (hardly any response below 100Hz)
- maximum volume lower than the competition
- hardly noticeable dynamic equalization, thefore thin sounding at lower levels
- Liveaudio might sound overdone with many standard stereo recordings 
- can rattle on particular surfaces
- very small rubber feet, so bottom can scratch easily
- original price too expensive for given performance