Allen & Heath

Allen & Heath dLive CDM32 MixRack

32 mic/line inputs. 16 line outputs

The MixRack is the heart of any dLive system. It houses the XCVI processing core complete with audio I/O, control and audio networking ports. It is typically connected to a dLive Surface, but can also be controlled at the same time as or even without a Surface using a laptop or iPad, Allen & Heath IP remotes or third party controllers via TCP/IP.

There are different sizes of dLive MixRack available. All feature the same mix engine and can work with the full 128 channels by adding DX expanders or digital sources.

dLive CDM32 MixRack

Technical Specifications

INPUTS
Mic/Line XLR Inputs
Balanced XLR, +48V phantom power
Mic/Line Preamp
Fully recallable
Input Sensitivity
-60 to +15dBu
Analogue Gain
+5 to +60dB, 1dB steps
Pad
-20dB Active PAD
Maximum Input Level
+30dBu (PAD in)
Input Impedance
>4kΩ (Pad out), >10kΩ (Pad in)
Mic EIN
-127dB with 150Ω source
Phantom Power indication
Per socket, internal or external phantom power sensing, triggered at 24V
OUTPUTS
Analogue XLR Outputs
Balanced, Relay protected
Output Impedance
<75Ω
Nominal Output
+4dBu = 0dB meter reading
Maximum Output Level
+22dBu
Residual Output Noise
-92dBu (muted, 20-20kHz)
SYSTEM
Dynamic Range
110dB
System Signal to Noise
-92dB
Frequency Response
20Hz - 30kHz +0/-0.8dB
THD+N (analogue in to out)
0.0015% @ +16dBu output, 1kHz 0dB gain
Headroom
+18dB
Internal operating Level
0dBu
dBFS Alignment
+18dBu = 0dBFS (+22dBu at XLR output)
Meter Calibration
0dB meter = -18dBFS (+4dBu at XLR out)
Meter Peak indication
-3dBFS (+19dBu at XLR out)
Sampling Rate
96kHz +/- 20 PPM
ADC
24-bit Delta-Sigma
DAC
24-bit Delta-Sigma
Latency
0.7 ms (MixRack XLR in to XLR out, Input to Mix)
Operating Temperature Range
0 deg C to 35 deg C (32 deg F to 95 deg F)
Mains Power (MPS16)
100-240V AC, 50-60Hz, 175W max
DIMENSIONS & WEIGHTS
CDM32: (Width x Depth x Height x Weight)
481.6 x 309 x 221 mm 5U (19"x 12.2"x 8.7") x 10kg (22lbs)
CDM32 - boxed: (Width x Depth x Height x Weight)
600 x 430 x 380 mm (23.6"x 16.9"x 15") x 12kg (26.5lbs)

XCVI Core

The power of dLive emanates from the XCVI Core – pioneered by the Allen & Heath R&D team using next generation FPGA technology, with 36 parallel virtual processing cores generating enough power for 160×64 channels of processing at 96kHz sampling rate. Six parallel mixing engines within the Core calculate over 10,000 cross points per sample, while the FPGA router has capacity for 3,000 x 3,000 audio paths. The massive power of XCVI (25 billion operations per second) allows dLive to deliver 128 full processing inputs and 16 stereo FX returns, a configurable 64 bus architecture, variable bit depth for ultimate precision and noise performance, a virtually infinite mix headroom thanks to a 96bit accumulator, and class leading latency at an ultra-low 0.7ms.

DEEP Processing

Our DEEP processing architecture embeds class-leading compressors and processing emulations directly within dLive’s input and mix channels. An array of bespoke algorithms including Graphic EQs, Compressors and a 64 channel Automatic Mic Mixer (AMM) can be inserted on the fly without burning FX slots and without the setup, latency and licence hassles associated with external plug-ins – they’re right there, where you need them, whenever you need them. The compressor models capture the audio nuances and non-linear ballistics of industry classics, ranging from a Slow-Opto model, various RMS detection and soft knee circuits, through to super-fast peak and RMS based compression/limiting devices.

RackExtra FX

The RackExtra FX portfolio combines the pristine quality and wide choice offered by boutique plug-ins with the convenience and low latency of onboard processing. It’s no secret that we have a passion bordering on obsession for crafting painstakingly faithful emulations of the most revered analogue outboard equipment. Drawing on the power of the XCVI Core, we have built hugely potent DSP kernels within the FPGA, allowing us to integrate our proven library of reverb, delay and modulator algorithms into dLive, with 16 FX slots available, each with a dedicated stereo return.

High-Performance Audio Processing

  • 32 mic/line inputs and 16 line outputs
  • Powered by the XCVI 160×64 FPGA core for advanced processing
  • High-fidelity 96kHz sample rate with variable bit-depth for precision and low noise
  • Virtually infinite mix headroom with 96-bit accumulator
  • Ultra-low latency of just 0.7ms

Extensive Mixing & Routing

  • 128 input channels and 64 mix outputs with full processing
  • Flexible 64-bus architecture supporting groups, FX, aux, matrix, and mains
  • Supports LR, LCR, and up to 5.1 surround mains modes
  • Multiple PFLs for versatile monitoring
  • 16 RackExtra effects with dedicated stereo returns
  • 24 DCAs for detailed mix control
  • Automatic Mic Mixer (AMM) supporting up to 64 channels across multiple zones
  • Built-in signal generator and real-time analyzer (RTA)

Superior Signal Quality & Handling

  • Redesigned preamps for exceptional transparency
  • Unique Active PAD circuit ensures consistent performance across sources

Robust Connectivity & Expansion

  • Centralized connection hub for streamlined setup
  • High-speed gigaACE gigabit link to Surface console
  • Dual DX links for flexible I/O expansion
  • I/O port supports 128 channels at 96 kHz
  • Dedicated ME-1 48 kHz port for personal monitoring
  • Dual network ports for redundancy and flexibility
  • Wordclock BNC input/output for precise synchronization
  • Expandable with up to 22 DX I/O units via DX Hub or Link cards

Design & Usability

  • Quiet, flush front panel with ultra-quiet fan, ideal for noise-sensitive environments
  • Reversible rack ears for flexible installation
INPUTS
Mic/Line XLR InputsBalanced XLR, +48V phantom power
Mic/Line PreampFully recallable
Input Sensitivity-60 to +15dBu
Analogue Gain+5 to +60dB, 1dB steps
Pad-20dB Active PAD
Maximum Input Level+30dBu (PAD in)
Input Impedance>4kΩ (Pad out), >10kΩ (Pad in)
Mic EIN-127dB with 150Ω source
Phantom Power indicationPer socket, internal or external phantom power sensing, triggered at 24V
OUTPUTS
Analogue XLR OutputsBalanced, Relay protected
Output Impedance<75Ω
Nominal Output+4dBu = 0dB meter reading
Maximum Output Level+22dBu
Residual Output Noise-92dBu (muted, 20-20kHz)
SYSTEM
Dynamic Range110dB
System Signal to Noise-92dB
Frequency Response20Hz - 30kHz +0/-0.8dB
THD+N (analogue in to out)0.0015% @ +16dBu output, 1kHz 0dB gain
Headroom+18dB
Internal operating Level0dBu
dBFS Alignment+18dBu = 0dBFS (+22dBu at XLR output)
Meter Calibration0dB meter = -18dBFS (+4dBu at XLR out)
Meter Peak indication-3dBFS (+19dBu at XLR out)
Sampling Rate96kHz +/- 20 PPM
ADC24-bit Delta-Sigma
DAC24-bit Delta-Sigma
Latency0.7 ms (MixRack XLR in to XLR out, Input to Mix)
Operating Temperature Range0 deg C to 35 deg C (32 deg F to 95 deg F)
Mains Power (MPS16) 100-240V AC, 50-60Hz, 175W max
DIMENSIONS & WEIGHTS
CDM32: (Width x Depth x Height x Weight)481.6 x 309 x 221 mm 5U (19"x 12.2"x 8.7") x 10kg (22lbs)
CDM32 - boxed: (Width x Depth x Height x Weight)600 x 430 x 380 mm (23.6"x 16.9"x 15") x 12kg (26.5lbs)

About Penguin Media Solutions

Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.

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