Features & Applications
Features
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Applications
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Detailed Description DM48
DM48 is the processing MixRack in an Allen & Heath dLive digital mixing system. Its 96 kHz XCVI FPGA engine supports 128 input channels and 64 configurable mix buses, independently of the amount of local analog I/O. This model provides 48 microphone/line inputs and 24 line outputs.
The mix engine includes full input and output processing, DEEP embedded processing, sixteen RackExtra FX engines and dedicated stereo returns. Flexible buses can serve groups, auxiliaries, FX sends, matrices and mains. Automatic mic mixing, DCAs, a signal generator, RTA and spectrogram support a broad range of live and installed workflows.
3 optional 128-channel I/O slots provide connections for compatible audio-network formats. Redundant gigaACE and DX links support resilient system connections. A dLive surface or compatible software provides control. RackUltra FX requires the optional upgrade; it is not included in the original base MixRack.
Manufacturer documents: Technical Datasheet · dLive System Brochure
Technical Specifications DM48
Mix engine and connections |
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|---|---|
| TYPE | dLive MixRack; 96 kHz XCVI FPGA processing |
| INPUT PROCESSING CHANNELS | 128; mono / stereo configurable |
| MIX BUSES | 64 configurable: group, aux, FX, matrix or mains |
| MAIN MODES | LR, LCR and up to 5.1 |
| RACKEXTRA FX | 16 engines with dedicated stereo returns |
| AUTOMATIC MIC MIXING | Up to 64 channels across 4 zones |
| DCA GROUPS | 24 |
| LOCAL MIC/LINE INPUTS | 48 |
| LOCAL XLR OUTPUTS | 24 |
| I/O SLOTS | 3 × 128-channel / 96 kHz |
| SURFACE LINK | Dual redundant gigaACE |
| DX EXPANSION | Redundant DX links |
| ME CONNECTION | Via compatible system expansion |
| CONTROL NETWORK | 2 Ethernet ports; BNC wordclock input / output |
| PROCESSING | Input and mix processing; DEEP embedded processing; signal generator, RTA and spectrogram |
| RACKULTRA FX | Optional upgrade; not included on the original base MixRack |
Analog inputs |
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| MIC/LINE INPUT TYPE | Balanced XLR; +48 V phantom power |
| PREAMP | Fully recallable |
| INPUT SENSITIVITY | −60 to +15 dBu |
| ANALOG GAIN | +5 to +60 dB in 1 dB steps |
| PAD | −20 dB Active PAD |
| MAXIMUM INPUT LEVEL | +30 dBu, PAD in |
| INPUT IMPEDANCE | >4 kΩ, PAD out; >10 kΩ, PAD in |
| MIC EIN | −127 dB with a 150 Ω source |
| PHANTOM-POWER INDICATION | Per socket; internal / external sensing, triggered at 24 V |
Analog outputs |
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| OUTPUT TYPE | Balanced XLR; relay protection |
| OUTPUT IMPEDANCE | <75 Ω |
| NOMINAL OUTPUT | +4 dBu = 0 dB meter reading |
| MAXIMUM OUTPUT | +22 dBu |
| RESIDUAL NOISE, MUTED | −92 dBu, 20 Hz–20 kHz; −90 dBu, 20 Hz–40 kHz |
System performance |
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| MEASUREMENT PATH | Balanced XLR input to XLR output, minimum gain, PAD out; 20 Hz–20 kHz |
| DYNAMIC RANGE | 110 dB |
| SYSTEM SIGNAL-TO-NOISE ENTRY | −92 dB, as specified |
| FREQUENCY RESPONSE | 20 Hz–30 kHz, +0/−0.8 dB |
| THD+N, ANALOG INPUT TO OUTPUT | 0.0015% at +16 dBu output, 1 kHz, 0 dB gain |
| HEADROOM | +18 dB |
| INTERNAL OPERATING LEVEL | 0 dBu |
| DBFS ALIGNMENT | +18 dBu = 0 dBFS; +22 dBu at XLR output |
| METER CALIBRATION | 0 dB meter = −18 dBFS; +4 dBu at XLR output |
| METER PEAK INDICATION | −3 dBFS; +19 dBu at XLR output |
| SAMPLE RATE | 96 kHz ±20 ppm |
| ADC | 24-bit Delta-Sigma |
| DAC | 24-bit Delta-Sigma |
| LATENCY | 0.7 ms, MixRack XLR input to XLR output, input to mix; +5 samples per gigaACE hop; +8 samples per DX hop |
Power and environment |
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| MAINS | 100–240 V AC, 50/60 Hz |
| MAXIMUM POWER | MPS16 V1: 300 W; MPS16 V2: 250 W |
| OPERATING TEMPERATURE | MPS16 V1: 0–35°C; MPS16 V2: 0–40°C |
Dimensions and weight |
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| DIMENSIONS (W × D × H) | 482.6 × 313 × 369 mm |
| WEIGHT | 17.5 kg |
| PACKED DIMENSIONS (W × D × H) | 590 × 420 × 510 mm |
| PACKED WEIGHT | 20 kg |
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