D-901 Digital Mixer
D-901 CE
The D-901 is a 19-type rack-mounted (3U high) digital mixer configured with 12 inputs, 8 buses, and 8 outputs. It features signal processing functions necessary for sound systems such as feedback suppression and auto-mixing. Modular construction permits flexible configuration of inputs and outputs, from 2-IN/4-OUT to 12-IN/8-OUT systems. All functional parameters can be set at the unit. Settings can be stored in the unit's internal memory as "preset memory" and can be recalled using the front panel-mounted operation keys.
- * 0 dB = 0.775 V
| Power Source | 230 V AC, 50/60 Hz |
|---|---|
| Power Consumption | 27 W |
| Frequency Response | 20 Hz - 20 kHz, ±1 dB (+4 dB* input) |
| Input | Max. 12 channels, modular construction (modules optional) |
| Output | Max. 8 channels, modular construction (modules optional) |
Signal Processing
| Feedback Suppression Function | 12 filters (auto/dynamic) |
|---|---|
| Auto-Mixing Function | Ducker (automatic muting), NOM attenuation |
| Auto-Mixing Group | 4 groups |
| Equalizer/Filter | Parametric equalizer: 20 Hz - 20 kHz, ±15 dB, Q: 0.267 - 69.249 Filtering: High-pass filter 20 Hz - 20 kHz, 6 dB/oct, 12 dB/oct Low-pass filter 20 Hz - 20 kHz, 6 dB/oct, 12 dB/oct Notch filter 20 Hz - 20 kHz, Q: 8.651 - 69.249 All-pass filter 20 Hz - 20 kHz, Q: 0.267 - 69.249 High shelving filter 6 - 20 kHz, ±15 dB Low shelving filter 20 - 500 Hz, ±15 dB Horn equalizer 20 kHz, 0 to +18 dB (1 dB steps) Crossover filter: 20 Hz - 20 kHz, 6 dB/oct, 12 dB/oct, 18 dB/oct, 24 dB/oct |
| Compressor/Auto-Leveler | (Compressor mode) Threshold: -20 to +20 dB (1 dB steps) Ratio: 1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, :1 Attack time: 0.2 ms - 5 s Release time: 10 ms to 5 s Gain: - to +10 dB (Auto-leveler mode) Target level: -20 to +10 dB (1 dB steps) Maximum gain: 0 to +20 dB (1 dB steps) Attack time: 10 ms - 10 s Release time: 100 ms to 10 s |
| Delay | Delay time: 0 - 682.6 ms (0.021 ms steps) |
| Matrix | 12 × 8 |
| Crosspoint Gain | - to 0 dB (1 dB steps) |
| Preset Memory | 16 |
|---|---|
| Auxiliary Function | System Locking function |
| Control | RS-232C, D-sub connector (9 pins), Remote control module (option) |
| Front Panel Section | Preset memory recall key: 8 LCD screen, screen shift key (up/down/left/right), setting knob Input level indicator: Dual color LED Output level indicator: Dual color LED Channel selector key: 12 (input channel selection) 8 (output channel selection) Channel volume control: 1 (input channel selection) 1 (output channel selection) |
| Rear Panel | Input module slot: 6 (input/output module slot: 2) Output module slot: 2 Remote control module slot: 1 |
| Operating Temperature | +5 ℃ to +40 ℃ (41 ゜F to 104 ゜F) |
| Finish | Panel: Aluminum, hair-line finish, black Others: Pre-coated steel plate, black, 30 % gloss |
| Dimensions | 482.6 (W) × 132.6 (H) × 343.1 (D) mm (19" × 5.22" × 13.51") (excluding projection) |
| Weight | 6.9 kg (15.21 lb) |
| Accessory | Power cord (2 m (6.56 ft)) ……1, Rack mounting screw ……4, Rack mounting bracket (preinstalled on the unit) ……2, Module mounting screw (spare) ……4, Blank panel (preinstalled on the module slot) ……9 |