Soundboks Mix Review: Bluetooth party speakers with oomph

The Soundboks Mix has been on the market since March 26, 2026 and costs 699 euros. It is positioned between the compact Soundboks Go (our test) and the large flagship Soundboks 4, not only in terms of size, but also in terms of performance. I used the speaker for several weeks in a wide variety of situations. I’ll show you what the Soundboks Mix can really do and where it has its limits in the detailed test.

Technical data of the Soundboks Mix

The product	Mix
Audio power	144 W
Driver	1x 10-inch woofer 1x 1.2-inch midrange tweeter
Bluetooth version	4.2
Bluetooth codecs	SBC, AAC
Connections	AUX
Battery life	up to 40 hours
Special features	IPX& certification; TeamUp; Reverse charging
Dimensions	480 mm x 340 mm x 270 mm
weight	9.7 kg
Colors	black
price	€ 699.00 *

Soundboks Mix Test: Discreet is different

Anyone familiar with the Soundboks 4 will recognize the Mix at first glance. The housing is made of ABS and polycarbonate, with large silicone corner protection balls on the edges to protect against impact – just like the large Soundboks. These balls are not just a design element: if the speaker tips over, it lands softly on them. And if it is standing on the floor, the raised position ensures that a puddle of drink cannot harm the chassis. Details that are worth more than you might think at a party.

With a height of just under 50 cm and a weight of just under 10 kg, the Soundboks Mix can be carried on its own. There is a handle on the top for this purpose. Compared to the Soundboks Go, the handle is much better dimensioned: instead of an elastic strap, there is a large recess that provides a comfortable grip even for hands with a large span.

The workmanship is extremely good. If you knock on the chassis, you will immediately notice that nothing wobbles or rattles. This is not a matter of course in this price range. The removable steel protective grille can be easily replaced if necessary, and various designs also allow the speaker to be customized.

The electrical components are protected against splash water in accordance with IP65 protection class, so that outdoor use in bad weather is not a problem. Dust, rain, accidentally spilled drinks cans: the Soundboks Mix takes it all in its stride. Two stand connections on the underside provide more flexibility when setting up, one of which is intended for speaker stands, the other for microphone stands. This is particularly practical for placing the speaker in a more favorable listening position and better distributing the sound in the room.

One small point of criticism: the controls and connections are kept minimalist, which is good in principle. However, the volume control was criticized by several testers as being difficult to operate. This is not dramatic in everyday use, but after several weeks of use it really becomes noticeable, especially if you want to react quickly.

Features and connectivity

The Soundboks Mix uses Bluetooth 4.2 Class 1. At first glance, this may seem outdated, but Class 1 stands for a higher transmission power and therefore a greater range, which is an important advantage, especially for a party speaker. In practice, the connection remains stable even across several rooms.

The Soundboks Mix not only supports Bluetooth and has an aux-in, but, like the larger Soundboks 4, also uses SKAA technology including team-up mode for multiple speakers. In concrete terms, this means that up to five speakers can be connected via TeamUp from a smartphone using the Soundboks app. This also works across manufacturers within the Soundboks family – Mix, Soundboks 4 and Go can be combined.

In addition to the Bluetooth connection, a 3.5 mm jack input is available for external players. So if you have an older device without Bluetooth or simply prefer a more stable connection, you’re covered. The app itself offers three sound profiles for indoor, outdoor and bass+ as well as a manually adjustable 6-band EQ that can be used to shape the sound individually.

What I miss after prolonged use: storable user presets for the EQ. Although the app allows adjustments, there are no individual presets that can be saved – just like a precise remaining time display. Instead, there is only a rough battery level indicator. This is bearable, but for a device in this price range, more would have been possible.

A real downer: direct mains operation is not possible. If you want to operate the box permanently in a stationary position, you always have to use the battery. This is a deliberate design decision that underlines the portable character. However, this is not ideal for purely stationary operation indoors.

Battery life

This is where the Soundboks Mix shines. The battery life is a good 40 hours at medium volume and around 8 hours at maximum power. This is the manufacturer’s promise and it holds true in practice. At a moderate level, i.e. typical garden or living room use, the speaker actually runs for several days without having to be connected to the charging cable.

The 7.8 Ah battery (12.8 V) is easy to remove and can be charged directly via USB-C. A good power supply with 65 watts fast charging quickly brings it back to full capacity. In concrete terms, this means that if you buy an additional removable battery, you can theoretically extend the runtime as much as you like without a break. A replacement battery can be hot-swapped quickly and easily, but costs extra.

The battery chemistry used is also remarkable: lithium iron phosphate is more stable than conventional lithium-ion, withstands more charging cycles before losing capacity and works more reliably in temperature extremes. For a box that is primarily built for outdoor life, this is a well thought-out choice of material.

What’s more, the Mix has a 10-watt USB output so that it can charge your smartphone while in use. Practical at festivals or on camping trips when the power socket is far away. However, the charge level display itself remains rudimentary: the only way to read the battery level is via five LEDs directly on the battery, there is no percentage display via the app. This could have been solved better.

Sound quality of the Soundboks Mix

No question: 121 dB maximum sound pressure level – that’s the house number Soundboks uses to advertise the Mix. For context: that’s louder than a live rock concert from the front row and around 20 dB more than most portable Bluetooth speakers can deliver. Anyone experiencing this for the first time will be amazed. The speaker actually moves air. You can feel the bass in your chest, even at moderate volumes.

Responsible for this are a 10-inch woofer and a 1.2-inch tweeter, driven by two Texas Instruments Class D amplifiers with 72 watts RMS each – a total of 144 watts of power. According to the manufacturer, the frequency range is 40 Hz to 20,000 Hz. The fact that a single 10-inch cone can achieve this volume is technically remarkable. Most competitors need several drivers to achieve this.

However, competitors such as the JBL Partybox Stage 320 (test) or the soundcore Rave 3S (test) sometimes deliver more power of 240 watts or 200 watts respectively, and at a significantly lower price. This is where the Mix has a hard time holding its own against the competition. Especially when it comes to the price-performance ratio.

What convinces me after weeks of use is that the Soundboks Mix remains comparatively low-distortion even at full volume. It sounds clear and controlled both at close range and from around ten meters away. This is the decisive difference to cheaper speakers that promise similar levels on paper, but then sound significantly worse at high volumes.

When playing pop or rock music at 50 percent volume, the stage width is impressive. There is a balanced amount of bass that does not drown out the mids and highs. Vocals are clear, and with electronic music such as Daft Punk, the low bass is present and perceptible without dominating.

What I don’t like in terms of sound, however, is that all three factory sound profiles deliver too much bass for my taste to make the music sound balanced overall. If you don’t correct this yourself with the EQ in the app, you end up with a rather bass-heavy sound. This is of course nice for a party context, but definitely too much for sophisticated music listening – at least for me personally.

In the treble range, the speaker shows its strengths in terms of dynamics and detail resolution at medium levels. Clear rhythmic precision makes it particularly strong for electronic music, but with complex instrumentation – such as piano from top to bottom – there are small gaps in the mid-range. However, this will probably only be noticed by audiophiles. For 90 percent of the applications for which this speaker was built, the sound quality is simply very good.

Soundboks Mix Review: Conclusion

The Soundboks Mix impresses in the test with its robust design, practical handling, good sound characteristics, extremely impressive volume and good battery performance. It is what the Soundboks line has needed for a long time: a mid-range model that is portable enough for everyday use, but loud enough for real parties.

However, the price of 699 euros is anything but a bargain. Especially if you’re looking at the competition from JBL or soundcore, you can get comparable models for just under half the price, which makes it difficult to give the Mix a clear recommendation to buy. If you know what you’re spending your money on, you’ll get a well-designed, robust device with a long battery life, rich sound and ecosystem compatibility that offers real added value when building up a larger fleet of Soundboks.

Minor weaknesses such as the lack of direct mains operation and the sluggish volume control do not change the fact that the speaker delivers a strong performance overall. The lack of EQ presets, no precise battery status display in the app and the slightly overly blaring factory bass are points of criticism that Soundboks brings to the table. If you’re looking for a reliable, loud, portable party speaker that won’t go on strike even in bad weather and lasts a long time, the Soundboks Mix is a very good choice.