Allen & Heath Qu-SB Portable Digital Mixer

18-channel Rackmount Digital Mixer, with 16 AnalogiQ Preamps, 32 x 32 USB Interface, and Remote Control iPad App
Allen & Heath Qu-SB Portable Digital Mixer image 1
Allen & Heath Qu-SB Portable Digital Mixer image 1
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Allen & Heath Qu-SB Portable Digital Mixer
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Powerful Mixing and Recording Capabilities

From live music performances to conference audio and panel discussions, the Allen & Heath Qu-SB is a powerful, portable digital mixer. It offers 16 mic/line inputs, and can be expanded to 32 channels via Allen & Heath AudioRacks (not included). Use the Qu-Pad iPad app to access all mixer functions, from channel faders and metering, to effects racks, scene management, and USB audio control. Performers onstage can use the Qu-You app for iOS and Android to control their own monitor mixes. And with effects derived from the iLive console series, mic presets for leading microphone models, built-in multi-track USB recording and much more, the Allen & Heath Qu-SB is an amazingly versatile rackmount mixer.

Freedom to mix anywhere with the Qu-Pad app

Add Allen & Heath's Qu-Pad iPad app to your rig and you'll have the freedom to adjust your monitors from onstage, tweak the PA while roaming about the venue, then mix the show from FoH. You can personalize the GUI to create your own control panel, perfect for offering customized control for any application. Whether you're mixing your band live, recording in the studio, or you're in charge of setting up a permanent sound installation for your school, church, or company conference hall - Sweetwater has found the Allen & Heath Qu-SB to be an outstanding solution that's at once flexible, scalable, and rock-solid reliable.

AnalogiQ preamps and 24-bit conversion, for warm, musical sound

Allen & Heath fortified the Qu-SB with 16 of their superb AnalogiQ total-recall preamps. Featuring phantom power, zero crossing detection, and a unique padless 1dB-step gain stage, the preamps are married to the DSP for optimum transparency and gain accuracy. The analog signal is captured by high-quality, low-latency 24-bit A-D converters matched to high-grade 24-bit D-A converters. A&H has spent considerable time refining the AnalogiQ design so it gives you stellar transparency, with minimum distortion and a vanishingly low noise floor.

Power-packed with smart features

If anyone knows live mixing, Allen & Heath is at the forefront. That's why they're able to load the Qu-SB with smart features you'll come to rely on, night after night. Like a built-in interface that streams multitrack audio to your Mac or PC via a flexible patching system. Or the integrated multitrack USB recorder that gives you 18 channels of 48kHz, 24-bit recording and playback straight to and from your USB hard drive. Impressive? How about every channel being outfitted with Channel Ducker, which provides auto signal attenuation for an endless number of applications? Or compatibility with A&H's ME Personal Mixing System? This allows any number of optional ME-1 personal mixers be chained from Qu-SB's dSnake port (or from an AR2412 / AB168 AudioRack, if you've got one connected), giving each performer control over his or her own mix and leaving the engineer free to concentrate on the audience experience.

Powerful functionality added in v1.9 software

The Qu series ecosystem is constantly being refined, and v1.9 of the Qu software adds even more functionality. More mic presets for Shure, Sennheiser and Audio-Technica mics are now available, making it easier than ever to dial in great sound fast with any mic in any application. You'll find a ton of advanced iPad control options too, like the ability to patch channels between dSnake, USB, Qu Drive and ME personal monitoring systems. You can set up various User profiles with different levels of permissions, manage your Scene memory, Copy/Paste channel settings, and manage USB devices. And v1.9 adds Windows DAW control support, for all popular Windows platforms.

Allen & Heath Qu-SB Portable Digital Mixer Features:

  • 16-channel portable digital mixer
  • 16 AnalogiQ mic preamps with total-recall capability
  • Expandable up to 32-in/24-out using dSNAKE AudioRacks (not included)
  • Supports up to 11 monitor mixes (4 mono, 7 stereo)
  • Four effects engines drive four dedicated effects Sends/Returns
  • 4 Mute Groups and 4 DCA Groups help you manage larger mixing tasks
  • Qu-Pad iPad App for all live mixing controls
  • Qu-You iPhone App for personal monitoring
  • Qu-Drive direct Multitrack recording and playback on USB drives
  • Trim, polarity, HPF, gate, insert, 4-band PEQ, compressor, delay on all Inputs
  • Insert, 4-band PEQ, 1/3 octave GEQ, compressor, delay on all Outputs
  • ProFactory Mic Presets provides EQ presets for popular industry-standard microphones
  • Automatic Mic Mixer manages mic levels automatically, perfect for conferences, meetings and panel discussions

Additional Media

Live Mixer Buying Guide

Tech Specs

Type 18 x 14 digital mixer interface for iPad
Channels 16
Inputs - Mic Preamps 16 x XLR
Phantom Power Yes
Inputs - Line 16 x 1/4", 2 x 1/4" (stereo paired)
Outputs - Main 2 x XLR (main out)
Outputs - Other 2 x 1/4" (stereo matrix out), 4 x XLR (mono mix out), 6 x XLR (3 stereo mix outs)
Aux Sends 11 monitor mixes (4 mono, 7 stereo), 4 x dedicated FX sends/returns
Busses/Groups 4 x stereo groups, 4 x DCA groups, 4 x mute groups
Data I/O 2 x Ethernet (Cat5 dSnake port, Network link)
USB 1 x Type B (audio interface), 1 x Type A (direct recording/playback)
Computer Connectivity USB
I/O Expansion Slots Expansion via dSnake for additional inputs and networking
Headphones 1 x 1/4"
EQ Bands 4-band parametric, Graphic
Effects 4 x FX engines (reverbs, delays, double tracking, chorus, symphonic, phaser, flanger)
Signal Processing Compression, Gates, Filters
Features Spectrogram feedback elimination, RTA with peak band indication
DAW Control DAW MIDI control
Software Qu-Pad iPad app, iLive FX library, iPhone/Android personal monitor app
Rackmountable Yes (kit sold separately)
Height 6.4"
Depth 6.9"
Width 17.2"
Weight 9.9 lbs.
Manufacturer Part Number AH-QU-SB

Customer Reviews

Based on 3 reviews
Write your review

Love it! Excellent size.

I had the QU-16 and AB168, and both work great. I was on a mission to downsize as much as possible as the places we play barely have room for amps and drums, let alone a full workstation like the QU-16. When Matt, my Sweetwater rep told be about the QU-SB I was sold. AND, I could continue to use my AB168 to extend to 32 channels. I do have 2 Airport Express routers and 2 iPads just in case something craps out.

Above Par

This mixer is light years above the other offerings, I've been learning its capabilities over the last 3 weeks. The sound quality is equal to the QU-16C which I also own, at a fraction of the cost. FX ,Compression, Gates, Limiters ect.. all from the other great units already in service. The Ipad program is a joy to use, how I ever got along without a remote control is beyond me. I love being able to walk out into the audience and adjust a singers settings. Forgot to tell you, I'm a Professional KJ (karaoke DJ). I can adjust setting and save them, name them and recall them. I can quickly record a singer to the QU-DRIVE and post the recordings on my business page so people can download it.

Finally found my compact digital mixer

Starting from the bottom line - After two years I tried three different brands that have a compact digital mixer, I finally found the one I'm gonna stay with. It is not perfect, and not as compact as the other two, but summing up all pros and cons - this is the one. Here's why:Pros:1. Above all - sound. Out of all three I tried - I liked it the most. After working with analog mixer for 15 years, I was happy to find something that gives both the accuracy and the warmth I was looking for. The preamps are great, the effects are great, and the summing is great.2. Build quality - a massive small monster that I carry to all my gigs with zero worries. Solid and strong.3. Inputs - Unlike the other ones, all 16 channels have both XLR and TRS inputs. As I play mostly in small venues, just putting the mixer on the back of the stage and connect instruments such *** acoustic guitar, keyboards, and such - directly - no need of a DI box. For me is a big difference.4. Expendability - The option to expand the mixer with another 16 channel was a big plus when I chose to buy it. Knowing that is can easily serve my on my small gigs, but once in a while, when I have a full band gig I can also enjoy it.5. Price - well - getting a 16 channel mixer from a well known brand for just 1k? Super easy decision.Cons:1. Lack of built in WiFi router. I guess the target market of the portable mixers are people like me - independent musicians that make small gigs. In that case the portability and ease of use can be sometimes a deal breaker. 2. Size - As said above. I know nothing about building mixers, but I wish this one would give a better fight to his much smaller opponents.3. The iPad application reacts slower when connected to the mixer then on demo mode... It is still the fastest of three (or at least the same), but on realtime I some time hope it would be more reactive.4. I wish they had a full app for iPhone/Android (or at least something a bit bigger than the Qu-You).All in all - after buying two others and replacing them, I am happy I found my mixer!
Music background: Performing Musician
See also: Mixers Digital, Allen & Heath, Allen & Heath Digital Mixers