Allen & Heath dLive CDM48 C Class MixRacks

Allen & Heath The CDM48 C Class MixRack is a powerful digital mixing rack module from the dLive C Class series, designed for live sound, multi-surface systems and installations. It features 48 mic/line inputs and 24 line outputs and uses an XCVI 160×64 FPGA processor with 96kHz sampling for high fidelity, wide dynamic range and ultra-low latency. The MixRack can support up to 128 input channels and 64 mix outputs with full processing and is compatible with Dante, Waves SoundGrid, MADI and other audio network formats via I/O ports or expansion options.

Technical characteristics:

General
• Type: dLive C Class MixRack
• Fully processed input channels: up to 128
• Fully processed mix outputs: up to 64
• Audio processing: XCVI 160×64 FPGA with 96 kHz sampling
• Latency: ultra low ~0.7ms
• Configurable 64‑bus architecture (groups, FX, AUX, matrices, mains)

Inputs
• 48 mic/line XLR inputs with +48 V phantom power
• Fully memory preamps with adjustable input PAD
• Active PAD -20 dB
• Sensitivity: -60 to +15 dBu
• Input impedance configuration adapting Pad in/out
• Indication of phantom power on each input

Exits
• 24 balanced XLR line outputs
• Nominal level +4 dBu, maximum +22 dBu
• Low output impedance value
• Relay protected outputs

Signal processing and effects
• 16 RackExtra FX with separate stereo returns
• DEEP Processing emulators and compression models
• Automatic mixer (AMM) for up to 64 channels in up to 4 zones
• Built-in signal generator, RTA and spectrogram
• Configurable main modes: LR, LCR and up to 5.1

Connectivity and extensions
• gigaACE gigabit connection to dLive Surface
• 2× DX link for I/O expansion
• I/O port – 128 channels at 96 kHz
• ME‑1 48 kHz port for personal mixers
• 2× network ports
• Wordclock BNC I/O
• Up to 22 DX I/O expanders via DX Hub or DX Link cards

System and parameters
• Dynamic range: ~110 dB
• Frequency response: 20 Hz – 30 kHz (+0/-0.8 dB)
• THD+N: 0.0015% at +16 dBu
• Signal to noise: ~‑92 dB
• Sampling Rate: 96 kHz
• ADC and DAC: 24‑bit Delta‑Sigma

Physical characteristics
• Format: 19" rack, 7U height
• Dimensions (W × D × H): ~481.6 × 309 × 310 mm
• Weight: ~12 kg (in operating mode)
• Power supply: 100–240 V AC, 50–60 Hz