Allen & Heath dLive CMD48 MixRack (no ultra fx)

The Allen & Heath CDM48 MixRack delivers scalable digital mixing performance designed for high-demand live sound and installation environments, offering a streamlined processing platform within the dLive ecosystem. Built for engineers who require reliable workflow integration and consistent audio quality, it provides a robust foundation for professional mixing applications in touring, broadcast, and fixed installations. 

Features

• 48 mic/line inputs, 24 line outputs
• XCVI 160×64 FPGA core
  -96kHz sample rate
  -Variable bit-depth for ultimate precision and noise performance
  -Virtually infinite mix headroom thanks to 96bit accumulator
  -Class leading, ultra-low latency at 0.7ms
• 128 Input Channels with full processing
• 64 Mix Outputs with full processing
• Configurable 64 bus architecture (group, FX, aux, matrix, mains)
  -LR, LCR and up to 5.1 mains mode
  -Multiple PFLs
• 16 RackExtra FX with dedicated stereo returns
• 24 DCAs
• AMM (Automatic Mic Mixer) up to 64 channels across 1, 2 or 4 zones
• Built-in signal generator and RTA
• New preamp design for extra transparency
• Unique Active PAD circuit for consistent performance with any source
• Connection hub
  -gigaACE gigabit link to Surface
  -2x DX links for I/O expansion
  -I/O Port – 128 ch 96 kHz
  -Dedicated ME-1 48kHz port
  -2x Network ports
  -Wordclock BNC I/O
• Add up to 22 DX I/O expanders via DX Hub modules or DX Link cards
• Flush front panel with ultra quiet fan
• Reversible rack ears design

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, 2020kHz) -90dBu (muted, 2040kHz)

System
Measured balanced XLR in to XLR out, 2020kHz, minimum Gain,
Pad out, signal @ 0dB (meter)
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: 24bit DeltaSigma
DAC: 24bit DeltaSigma
Latency: 0.7 ms (MixRack XLR in to XLR out, Input to Mix), +5 samples, Surface to Mixrack (GigaACE hop), + 8 samples, DX32 to Mixrack (DX hop)

Dimensions and Weight
CDM48: W481.6 x D309 x H310 mm 7U (19"x12.2"x 12.2") x 12kg (26.5lbs)