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Products
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Allen & Heath GL4800Downloads
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| Specifications | |||
| Operating Levels | |||
| Internal Headroom | +21 dB | Max. Main Output | +27 dBu |
| Line Input | -14 dB to +40 dB variable | Max. Jack Output | +21 dBu |
| Frequency Response (+0/-0.5dB) | 20 Hz–20 kHz | THD + Noise @ 1 kHz | 0.006% |
| Crosstalk @ 1 kHz | |||
| Adjacent Channel | > 100 dB | Mute Shutoff | > 85 dB |
| Fader Shutoff | > 90 dB | ||
| Noise Performance (22Hz–22kHz unweighted) | |||
| Mic EIN | -128 dB | Residual Output Noise | < -98 dBu (-102 dB S/N) |
| Mix Noise - nothing routed | < -88 dBu (-92 dB S/N) | Mix Noise - 24 routed | < -86 dBu (-90 dB S/N) |
| Connection Impedances | |||
| Mic Inputs | 2 kΩ | Line Inputs | > 10 kΩ |
| Outputs | < 75 Ω | ||
| Equalization | |||
| Max. Boost/Cut (each band) | ± 15 dB | Filter (mono input) | Off to 400 Hz |
| Mono Channel HF | 12 kHz shelf | Stereo Channel HF | 12 kHz shelf |
| Mono Channel HM | 500 Hz–15 kHz, Q=1.8 | Stereo Channel HM | 2.5 kHz, Q=1.8 |
| Mono Channel LM | 35 Hz–1 kHz, Q=1.8 | Stereo Channel LM | 250 Hz, Q=1.8 |
| Mono Channel LF | 80 Hz shelf | Stereo Channel LF | 80 Hz shelf |
| Metering | |||
| Sensitivity | 0VU = +4 dBu at XLR out | Peak Indication Threshold | 5 dB before clipping |
| Dimensions (HxWxD) and Weights | |||
| 24 Channel | 28.5 x 116.6 x 74.8 cm | 11.0" x 46.0" x 29.0" | 47 kg (104 lbs) |
| 32 Channel | 28.5 x 142.1 x 74.8 cm | 11.0" x 56.0" x 29.0" | 57 kg (126 lbs) |
| 40 Channel | 28.5 x 167.6 x 74.8 cm | 11.0" x 66.0" x 29.0" | 67 kg (148 lbs) |
| 48 Channel | 28.5 x 193.1 x 74.8 cm | 11.0" x 76.0" x 29.0" | 77 kg (170 lbs) |
800.937.9021 Ext - 109, Or


