The Allen & Heath Qu-SB (AH-QU-SB) is a compact, rack-mountable 18-in / 14-out digital mixer designed for mixing from an iPad. It is a portable mixer for bands, artists, AV, and installation, with 16 AnalogiQ digitally controlled preamps and expansion over dSNAKE.
Local I/O is 16 mono inputs plus 1 stereo input and 14 outputs, expandable to 32 mono and 3 stereo inputs when you add a remote AudioRack over a single Cat5 dSNAKE cable. The mixer has the processing of a larger Qu console, so it can handle up to 38 inputs and 24 outputs when connected to Allen & Heath AudioRacks. Mixes include 4 mono and 3 stereo plus LR, expandable to 4 mono, 7 stereo, and LR, plus 2 stereo matrixes.
Qu-SB includes 4 stereo RackFX engines with dedicated return channels, each with a 4-band PEQ. An integrated Qu-Drive recorder captures 18 channels of 48kHz, 24-bit audio to a USB key or hard drive, and the USB-B interface streams 32 channels to and from a Mac or Windows computer. The unit occupies 4U when rack mounted, or can sit as a compact stagebox. Allen & Heath notes that an external Wi-Fi router (wireless access point) is required for iPad mixing.
Allen & Heath Qu-SB Features
- AnalogiQ digitally controlled preamps. The Qu-SB has 16 AnalogiQ digitally controlled preamps with zero-crossing detection and a padless 1dB-step gain stage. Allen & Heath designed AnalogiQ for transparency, low distortion, and a low noise floor. Conversion is 24-bit on both input and output.
- Mix from an iPad, with no faders on the surface. Qu-SB is similar to the faderless Qu-Pac, but without front-panel mix controls. The official Getting Started Guide says you mix wirelessly with an iPad, and that an external Wi-Fi router is required. The Qu-Pad app provides the mixing surface, including setup options.
- Expandable over dSNAKE. A local dSNAKE EtherCon port adds remote AudioRacks on Cat5. Official figures are up to 38 input signals and 20 mix outputs, plus dedicated ME personal-monitoring sends. Local I/O expands from 16 mono plus 1 stereo to 32 mono and 3 stereo inputs.
- Four RackFX engines and 18-track Qu-Drive recording. Four stereo RackFX engines return on dedicated channels so you do not have to use input channels for effects. Qu-Drive records 18 channels at 48kHz, 24-bit WAV to a USB device: 16 mono plus a selectable stereo pair, with stereo recording also patchable from mixes, main LR, or PAFL.
- 32-channel USB interface for computers. The front-panel USB-B port streams 32 channels in and 32 channels out at 48kHz, 24-bit. It is class compliant on macOS, with drivers available for Windows, and works with DAWs that support ASIO or Core Audio. MIDI control is tunnelled over USB and the network.
- SoftKeys, mute groups, and DCA groups. The Qu-SB has 10 SoftKeys, 4 mute groups, and 4 DCA groups. Those assignable keys and groups give you quick access to mutes and level control even though the mixer has no faders on the surface.
- Rack or stagebox format. Official dimensions list a 4U rack-mounted size of 483 x 135.4 x 177 mm (19 x 6.9 x 7 in), or desk and stagebox use at 435.5 x 174.5 x 161 mm (17.2 x 6.9 x 6.4 in). Unpacked weight is 5.7 kg (12.7 lbs).
- Low documented analogue latency. The official Qu-SB technical datasheet lists 1.2 ms latency from local XLR in to XLR out, and 0.7 ms from local XLR in to AES out.
Where the Qu-SB Fits
Performing bands and artists: The compact stagebox format and iPad control let you mix from the room, and Qu-Drive records the show without bringing a laptop.
Installed and portable AV: The 4U rack-mount frame, dSNAKE expansion, and automatic mic mixer tools suit schools, houses of worship, and small venues that want a small rack mixer with room to grow.
Personal monitoring setups: Qu-SB is compatible with the Allen & Heath ME personal mixing system and the Qu-You personal monitoring app for Android and iOS.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
Allen & Heath Qu-SB Specifications
- Model: Qu-SB
- Manufacturer part number: AH-QU-SB
- Type: Portable 18-in / 14-out digital mixer, expandable, designed for iPad control
- Local inputs: 16 mono (XLR and 1/4-inch TRS) plus 1 stereo line input (ST1, 1/4-inch TRS); expandable to 32 mono / 3 stereo
- Local outputs: 14 outputs on the surface; mixes 4 mono + 3 stereo + LR, expandable to 4 mono + 7 stereo + LR; 2 stereo matrixes
- Preamps: 16 AnalogiQ digitally controlled preamps, padless 1dB-step gain, fully recallable
- Analogue gain (XLR / TRS): -5 to +60dB, 1dB steps; input sensitivity -60 to +5dBu (XLR) / -50 to +15dBu (TRS)
- Converters: 24-bit ADC and DAC
- Latency: 1.2 ms local XLR in to XLR out; 0.7 ms local XLR in to AES out
- FX: 4 stereo RackFX engines with dedicated stereo returns and 4-band PEQ
- Qu-Drive: USB-A, 18-track and stereo record/playback, 48kHz, 24-bit WAV
- USB-B audio interface: 32x32, 48kHz, 24-bit, Core Audio; Windows drivers available
- SoftKeys / groups: 10 SoftKeys, 4 mute groups, 4 DCA groups
- Expansion: dSNAKE EtherCon port; compatible with AR2412, AR84, AB168 AudioRacks and the ME personal mixing system
- Control apps: Qu-Pad (iPad), plus Qu-You personal monitoring for Android and iOS; an external Wi-Fi router is required
- Power: 100-240V AC, 50/60Hz, 150W maximum
- Desk / stagebox dimensions: 435.5 x 174.5 x 161 mm (17.2 x 6.9 x 6.4 in)
- Rack-mounted dimensions: 483 x 135.4 x 177 mm (19 x 6.9 x 7 in), 4U
- Unpacked weight: 5.7 kg (12.7 lbs)
- Packed dimensions: 550 x 270 x 270 mm (21.7 x 10.6 x 10.6 in)
- UPC: 6938122244795
What's in the Box
- 1 x Allen & Heath Qu-SB digital mixer
Allen & Heath has not published a full packing list for the Qu-SB on the official product page or technical datasheet cited for this listing. Call 833-WOLFPACK (833-965-3722) if you need the complete accessory list.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
How to Control the Qu-SB
- Qu-Pad (iPad): The official Getting Started Guide says you mix wirelessly with an iPad. An external Wi-Fi router (wireless access point) is required
- Qu-You: Personal monitoring app for Android and iOS
- ME personal mixers: Compatible with the Allen & Heath ME personal mixing system
- SoftKeys: 10 assignable SoftKeys on the unit, plus 4 mute groups and 4 DCA groups
- MIDI: MIDI control is tunnelled over USB and the network
The Qu-SB has no faders on the mixer itself. Mix control is designed around the iPad app, with personal monitoring available through ME mixers or Qu-You.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
The Qu-SB user manual will be posted here soon. Need it now? Call 833-WOLFPACK (833-965-3722) and we'll email it to you.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
Allen & Heath Qu-SB Digital Mixer Q&A
Does the Qu-SB have faders on the mixer itself?
Does the Qu-SB have faders on the mixer itself?
No. The Qu-SB is a faderless mixer. Allen & Heath describes it as similar to Qu-Pac but without front-panel controls, and you mix from an iPad. An external Wi-Fi router (wireless access point) is required.
Does the Qu-SB provide 16 mono inputs plus 1 stereo input locally?
Does the Qu-SB provide 16 mono inputs plus 1 stereo input locally?
Yes. Local I/O on the Qu-SB is 16 mono inputs plus 1 stereo input (18 in) and 14 outputs. It can be expanded to 32 mono and 3 stereo inputs with a remote AudioRack on dSNAKE. The processing core can handle up to 38 inputs and 24 outputs when connected to Allen & Heath AudioRacks.
Can I record on the Qu-SB without a computer?
Can I record on the Qu-SB without a computer?
Yes. Qu-Drive on the Qu-SB records 18 channels of 48kHz, 24-bit WAV audio to a USB key or hard drive: 16 mono channels plus a selectable stereo pair, with stereo recording also patchable from mixes, main LR, or PAFL.
Does the Qu-SB have a 32x32 USB-B audio interface?
Does the Qu-SB have a 32x32 USB-B audio interface?
Yes. The Qu-SB USB-B port streams 32 channels in and 32 channels out at 48kHz, 24-bit. It is class compliant on macOS, and drivers are available for Windows.
Can I expand the Qu-SB over dSNAKE?
Can I expand the Qu-SB over dSNAKE?
Yes. Use the Qu-SB dSNAKE EtherCon port and a Cat5 cable to add Allen & Heath AudioRacks such as AR2412, AR84, or AB168. Official expansion is up to 32 mono and 3 stereo inputs, with further processing capacity described as up to 38 inputs and 24 outputs.
Does the Qu-SB work with ME personal mixers?
Does the Qu-SB work with ME personal mixers?
Yes. The official Qu-SB datasheet lists compatibility with the Allen & Heath ME personal mixing system, and the product page also mentions the Qu-You personal monitoring app for Android and iOS.
Is an external Wi-Fi router required for iPad mixing on the Qu-SB?
Is an external Wi-Fi router required for iPad mixing on the Qu-SB?
Yes. Allen & Heath states that an external Wi-Fi router (wireless access point) is required for iPad mixing with the Qu-SB.
Is the Qu-SB rack mountable?
Is the Qu-SB rack mountable?
Yes. Official dimensions list a 4U rack-mounted size for the Qu-SB of 483 x 135.4 x 177 mm (19 x 6.9 x 7 in). Desk or stagebox use is 435.5 x 174.5 x 161 mm (17.2 x 6.9 x 6.4 in). Unpacked weight is 5.7 kg (12.7 lbs).
Did Allen & Heath publish a warranty term for the Qu-SB?
Did Allen & Heath publish a warranty term for the Qu-SB?
No. Allen & Heath did not publish a warranty term on the Qu-SB product page or technical datasheet cited for this listing. Call 833-WOLFPACK (833-965-3722) and we will confirm the current manufacturer warranty.
Has Allen & Heath published a full packing list for the Qu-SB?
Has Allen & Heath published a full packing list for the Qu-SB?
No. A full packing list for the Qu-SB is not published on the official product page or technical datasheet cited for this listing. Call 833-WOLFPACK (833-965-3722) if you need the complete accessory list.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
HDTV Supply supplies Allen & Heath compact digital mixers for bands, houses of worship, schools, and portable AV racks.
The Qu-SB expands over dSNAKE and is officially compatible with AR2412, AR84, and AB168 AudioRacks, plus the ME personal mixing system. USB audio is class compliant on macOS, with Windows drivers available. iPad mixing requires an external Wi-Fi router.
Why not buy this Allen & Heath Qu-SB Digital Mixer today?
Allen & Heath did not list a warranty term on the official Qu-SB product page or technical datasheet cited for this listing. Questions? Call 833-WOLFPACK (833-965-3722) and we will confirm the current manufacturer coverage.
