Q Acoustics Active Speakers|Q Active 400 Floorstanding Speakers


Q Active 400

Active Speakers

Expect The Exceptional

An entire wireless audio system, delivering uncompromised hi-fi sound that fits conveniently and seamlessly into your lifestyle.

  • High fidelity sound with true wireless connectivity from multiple streaming services: Apple AirPlay 2, Roon, Spotify and plenty more gives access to a planet’s-worth of music.
  • Integrate your TV, turntable, games console and more into your wireless, music-streaming system.
  • Voice control - works with Google Assistant, Amazon Alexa (available early 2021) or Apple Siri for easy voice control.

Q Active 400


An entire high-resolution wireless audio system ,delivering uncompromisedhi-fi sound that fits conveniently and seamlessly into your lifestyle

Q Active.Expect the Exceptiona

wireless audio system

In delivering an entire high-resolution audio system, one that serves up uncompromised audio quality while fitting seamlessly and conveniently into its user’s lifestyle, Q Acoustics has excelled in three key areas.

Q Active is versatile. Q Active delivers superlative sound quality.Q Active is designed to look as unique as it sounds.

And, of course, Q Active represents the sort of prodigious value for money every listener expects from Q Acoustics.

three key areas
Q Active 400 streming services
Wireless Connectivity

Each Q Active system includes connectivity for Bluetooth® 4.1, Apple AirPlay 2, Spotify Connect and UPnP. Q Active is also Roon Ready. The hub works with Google Assistant-enabled device with Chromecast built-in™.

In addition, Q Active is designed to support your favourite streaming service’s native app - which means simple, straightforward access to the entire planet’s music. Q Active works with Amazon Music, Apple Music, Deezer, Qobuz, Spotify and Tidal.

Google HubAmazon Hub†
Amazon "Works with Alexa"
Google "Chromecast built-in"
Google Assistant
Apple AirPlay 2
Roon Ready

Q Active Control Hub

Compatible with a Google Assistant- enabled device with Chromecast built-in.

Q Active’s hub is the heart of the system and also supports physical formats and converts them into a high resolutions 24bit/96kHz digital file. The hub then streams this high-resolution audio file to the speakers – so any format you want to listen to can be dealt with wirelessly by your Q Active system. Which means high-quality wireless audio performance no matter the source of your music.

Q Active Control Hub

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Ethernet connectivity provides the option for a robust wired internet connection to Q Active.

TV Sound

TV Sound

HDMI Audio Return Channel (ARC) input on the hub - so any TV with a corresponding output can send audio information to the hub without affecting its picture performance. Want your TV sound to be part of your wireless audio system? With Q Active, it can be.

Digital Optical

Digital Optical

Disc-players - no matter if it’s a CD player, a DVD player or a Blu-ray player will have a digital optical output. Almost every games console has one too. So there’s nothing to stop you getting any of these sources involved in your wireless high-resolution audio system as well.

Line Level

Line Level

Use the stereo RCA analogue inputs at line level and plug in a cassette deck, a mixer or anything else with an analogue line-level output into the hub. From there it is transferred wirelessly to the speakers, where it is delivered as great-sounding high-resolution audio by the Q Active speakers.



The stereo RCA analogue inputs on the hub can be selected for use with a moving-magnet phono stage. So plugging in your record player means all of that lush vinyl sound can be transformed into a digital signal and streamed wirelessly to the Q Active speakers.

Sub Out

Sub Out

The Q Active system delivers plenty of deep, detailed bass. However the hub does offer a subwoofer pre-out for hooking up an additional stand-alone subwoofer.

Q Active 400 Multiroom Audio Integration
Multiroom Audio Integration

Whether you choose Chromecast built-in, Amazon Multiroom Music, Apple AirPlay 2, or Roon to organise your multiroom music system, Q Active can be seamlessly integrated into it.

So, no matter if you want the same song playing all over your home, or different music in different zones, or if you simply want your music to follow you as you move around your home, Q Active can be part of your experience.

Q Active 400 Design
Voice Control

If you have an Apple Sirior a Google Assistant-enabled speaker on your home network, it’s easy to control the volume and playback selection of the Q Active system.

With any of these 3 features, you can control your Q Active system with your voice. You can also use the Google Home app to control your Q Active system.

Q Active 400 Your Choice Of Control
Your Choice Of Control

In addition to your choice of voice assistant, Q Active can also be controlled using your favourite streaming apps. Or if the TV plugged into the HDMI ARC socket on the control hub is CEC-equipped, use the TV’s remote to control functions like ‘volume’ and ‘standby’. Alternatively use the cabinet mounted volume control on each Q Active speaker or the free Q Active Android and iOS app that allows control and customisation of this wireless audio system.

Ground-up, imaginative design delivers uncompromised high-resolution audio performance and exceptional value for money.
Q Active 400 high true active design
Stunning High Resolution Sound

Audio can be described as ‘high resolution’ if it consists of a digital audio format of greater than the CD-standard 16bit/44.1kHz. Q Active can support wireless streaming with a maximum source resolution of 32bit/192kHz, whether from its control hub via a smartphone or tablet.

This means any source plugged into the hub will be converted to an information-rich 24bit/96kHz digital format before it’s streamed to the Q Active speakers, and the top tier of any high-resolution music streaming service will be streamed at this resolution too.

The result of all this painstaking and uncompromised engineering is extraordinary musical accuracy and amazing audio quality. Q Active delivers a sonic performance way beyond its price.

Q Active 400 Design
Active Amplification

In a traditional, passive audio system there is one amplifier. It drives two speakers, which will have a total of at least four drivers. In the Q Acoustics Q Active system, each driver - there are three in each Q Active 200 speaker and four in each Q Active 400 speaker - is controlled by its own individual, specifically selected amplifier.

Using a total of six (or eight) discrete amplifiers, with a total of 280 (or 440) watts of power to drive the Q Active system means each individual driver receives its own carefully regulated amplification. As a result, Q Acoustics is able to control each driver with far more accuracy and finesse than would otherwise be possible and this, in turn, means Q Active can deliver the widest, most rigorously focused and most convincing soundstage possible. Which, in short, means Q Active sounds bigger and more precise than you might think possible.

Hearing is believing.

Dynamic Widescreen Sound

Q Active doesn’t look unique simply for the sake of it.Q Acoustics decided from the outset that it wanted Q Active to deliver a widescreen sound with no compromise in terms of stereo focus or soundstage, it specified Balanced Mode Radiators (BMRs) where less visionary companies might have stuck with the more conventional ‘dome tweeter/midrange driver’ alternative.

Balanced Mode Radiators allow Q Active to deliver outstanding sound quality across your entire listening area, rather than restricting it to the ‘sweet spot’ of more traditional driver arrangements.

In addition to this widescreen presentation, BMRs deliver seamless midrange performance. Operating all the way down to 150Hz, where they hand over to Q Actives’ subwoofer driver, there is no midrange crossover distortion and, consequently, completely clean and uncoloured midrange performance.

It allows for a degree of fine-tuning in your listening room as it’s possible to position the BMRs to the inside or the outside of the cabinets. The cabinets may also be more effectively braced for optimum rigidity.

Standard Drivers vs BMR Drivers
Powerful, Controlled Bass
Powerful, Controlled Bass

The back of an ordinary loudspeaker isn’t usually worthy of discussion. But, as is surely obvious by now, Q Active is far from an ordinary loudspeaker - and that goes for the rear of its cabinet too.

Q Active 400 features a pair of the subwoofers in order to double down on the low-frequency action.

Fixed Boundary Wave Guide
Fixed Boundary Wave Guide

The subwoofers fire onto a fixed 'Wave guide' boundary to ensure that the bass response of Q Active is always perfectly controlled - no matter where in your room you decide to position the speaker.

Stunning Ground-Up Design
Stunning Ground-Up Design

Rather than attempt to fit one of its existing loudspeaker designs with electronics, Q Acoustics has designed Q Active from the ground up with the express intent of delivering an utterly uncompromised high-resolution audio system that looks as good as it sounds.

Unrivalled Acoustic Engineering

Meticulous attention to detail has produced a compact, high-performance system that makes a distinctive visual statement - but every element of Q Active has been engineered to deliver the best performance possible.

As well as the panoramic, widescreen sound delivered by the BMR arrangement and the deep, controlled bass served up by the carefully specified and positioned subwoofers, Q Acoustics has paid painstaking attention to the way the Q Active cabinet contributes to the system’s outstanding sonic performance.

Unrivalled Acoustic Engineering
Balance and Rigidity
Balance and Rigidity

‘Dart’ bracing in both the Q Active 200 and Q Active 400 cabinets provides essential stiffness to the cabinet and equally helpful mechanical stability to the rear-firing driver unit - both are extremely good news when it comes to extracting optimal performance from the speaker. And in Q Active 400, careful positioning of the two subwoofers means standing waves inside the cabinet that might colour the sound are effectively neutralised.

Tuned For Your Environment
Tuned For Your Environment

Unlike most loudspeakers, Q Active is tuned to perform to its maximum potential no matter where in your listening room it’s positioned. And unlike most loudspeakers, Q Active is remarkably forgiving of less-than- ideal placement. Its driver configuration means it’s one of the most flexible, as well as one of the best-sounding, speakers you can buy at any price.

Speaker Arrangement

Q Actives can be positioned with the BMRs either on the inside or the outside of the cabinets, allowing perfect audio reproduction no matter if you're sitting close to the speakers or far away from them. There’s a simple switch on the back of each Q Active speaker to designate it as either the left- or the right-hand channel.

Drivers Inside

Drivers Inside
Drivers Outside

NS-F901 concept DC Diaphragm™ Tweeter
Boundary Setting
Boundary Setting

A second switch allows you to tell the speaker exactly where it’s positioned in relation to the room - close to a rear wall, in a corner, or out in a little free space. This information allows Q Active to fine-tune its low- frequency response in order to deliver the best possible sound no matter the circumstances.

Enclosure typeReflex (ported)
Full range driver2 x BMR 58mm
Subwoofer (high excursion)2 x 114mm
Crossover frequency150Hz
System frequency response (free boundary)35Hz to 20kHz (-6dB)
Power (per speaker)
Continuous power140W
Peak power440W
Power requirement
Voltage range100 - 240 VAC, 50/60 Hz
Weight and dimensions
Un-boxed weight (per speaker)17.5kg
Dimensions (per speaker) H x W x D825 x 320 x 290mm spikes & stabiliser
Wireless connectivity
Hi-Res Wireless Link frequency5.8GHz
Audio playback
Sample frequency96kHz
Bit depth24bits
Max Source Resolution32bit/192kHz

Hub Specifications

Power requirement
Voltage range100 - 240 VAC, 50/60 Hz
Weight and dimensions
Un-boxed weight (per speaker)0.5kg
Dimensions (per speaker) H x W x D40 x 180 x 112mm
Wired connectivity
Bluetoothv4.2 Low Energy
Digital HDMI96kHz/16bit ARC (2 channel)
Wi-FiIEEE 802.11 a/b/g/n and 802.11ac compliant
Hi-Res Wireless Link frequency5.8GHz
Remote control2.4GHz
Audio playback
Codec formatsAAC , WAV, FLAC, MP3, Vorbis, WMA & ALAC
Sample frequency8 – 192kHz (depending on codec)
Bit depth8 – 24bits (depending on codec)
Wired connectivity
Digital optical96kHz/24bit Toslink
Digital HDMI96kHz/16bit ARC (2 channel)
Analogue (set to line level)300mV/18kΩ
Analogue (set to phono MM)2.6mV/47kΩ (RIAA Equalised)
Subwoofer output1.20V (0-300Hz)
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