Products
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Allen & Heath ML4000![]() Downloads
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Specifications | |||
Operating Levels | |||
Channels | 0 dBu Headroom +21 dB | ||
Mix | -2 dBu Headroom +23 dB | ||
Max. Output (XLR/TRS) | +23 dBu / +21 dBu | ||
Frequency Response (+0/-0.5dB) | |||
Mic to Main Output (+40dB) | 20 Hz–30 kHz | ||
Line to Main Output (0dB) | 20 Hz–30 kHz | ||
Distortion | |||
THD + Noise @ 1 kHz | < 0.02% | ||
Common Mode Rejection | |||
Mic Input (+40dB) | > 80 dB | ||
Mic Input with Pad (0dB) | > 50 dB | ||
Crosstalk @ 1 kHz | |||
Adjacent Channel | < -95 dB | ||
Mute Shutoff | < -90 dB | ||
Fader Shutoff | < -90 dB | ||
Noise Performance (22Hz–22kHz unweighted) | |||
Mic EIN with 150Ω source | -128 dB | ||
Residual Output Noise | < -98 dBu | ||
Mix Noise - nothing routed | < -94 dBu | ||
Mix Noise - 24 channels | < -84 dBu | ||
Connection Impedances | |||
Mic Inputs | 2 kΩ | ||
Line Inputs | > 20 kΩ | ||
Outputs | < 75 Ω | ||
Equalization | |||
Max. Boost/Cut (each band) | ± 15 dB | ||
Mono Channel HF | 2 kHz–20 kHz shelf | ||
Mono Channel HM | 500 Hz–15 kHz, Q=1 or 2 | ||
Mono Channel LM | 35 Hz–1 kHz, Q=1 or 2 | ||
Mono Channel LF | 20 Hz–200 Hz shelf | ||
Filter (mono input) | 20 Hz to 400 Hz | ||
Stereo Channel HF | 12 kHz shelf | ||
Stereo Channel HM | 2.5 kHz bell | ||
Stereo Channel LM | 250 Hz bell | ||
Stereo Channel LF | 60 Hz shelf | ||
Metering | |||
Reading 0 | 0 dBu at XLR outputs | ||
LED Meters | Peak reading, 3 colors | ||
VU Meters | Ave reading, illuminated moving coil | ||
Peak Indication Threshold | 5 dB before clipping | ||
Input Meters | 5 bar LED (signal, -6, 0, +6, peak) | ||
Group Mix Meters | 5 bar LED (signal, -6, 0, +6, peak) | ||
Group/Mtx Meters | VU | ||
L,R,C Meters | VU and 16 bar LED | ||
Miscellaneous | |||
Lamp Connectors | 3x 4-pin XLR-F | ||
Power Requirements | 100–230V AC; 50/60 Hz, 500 W | ||
Dimensions (HxWxD) and Weights | |||
24 Channel | 28.2 x 119.6 x 78.1 cm | 11.1" x 47.0" x 30.7" | 53 kg (116 lbs) |
32 Channel | 28.2 x 145.1 x 78.1 cm | 11.1" x 57.0" x 30.7" | 65 kg (143 lbs) |
40 Channel | 28.2 x 170.6 x 78.1 cm | 11.1" x 67.0" x 30.7" | 75 kg (165 lbs) |
48 Channel | 28.2 x 196.1 x 78.1 cm | 11.1" x 77.0" x 30.7" | 87 kg (191 lbs) |
Sidecar | 28.2 x 83.1 x 78.1 cm | 11.1" x 33.0" x 30.7" | 40 kg (88 lbs) |

757.498.6118 Ext - 109, Or