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The D-901 is a 19-type rack-mounted (3U high)digital mixer configured with 12 inputs, 8 buses, and 8 outputs. It featuressignal processing functions necessary for sound systems such as responsesuppression and auto-mixing. Modular construction permits flexibleconfiguration 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 theunit\'s internal memory as \"preset memory\" and can be recalled usingthe front panel-mounted operation keys.
Filtering: High-pass filter 20 – 20,000 Hz, 6 dB/oct, 12 ct
Low pass filter 20 – 20,000 Hz, 6 dB/oct, 12 dB/oct
Notch filter 20 – 20,000 Hz, Q: 8.651 – 69.249
All-pass filter 20 – 20,000 Hz, Q: 0.267 – 69.249
High shelving filter 6 – 20,000 Hz, ±15 dB
Low shelving filter 20 – 500 Hz, ±15 dB
Horn equalizer 20 kHz, 0 to +18 dB (1 dB steps)
Crossover filter: 20 – 20,000 Hz, 6 dB/oct, 12 dB/oct, 18 dB/oct, 24 dB/oct
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 – 5 s
Gain: –∞ to +10 dB
(Auto-leveler mode)
Target level: –20 to +20 dB (1 dB steps)
Maximum gain: 0 to +20 dB (1 dB steps)
Attack time: 10 ms – 10 s
Release time: 100 ms – 10 s
DelayDelay time: 0 – 682.6 ms (0.021 ms steps)Matrix12 x 8Crosspoint Gain–∞ to 0 dB (1 dB steps)ControlRS-232C, D-sub connector (9 pins), Remote control module (option)Front Panel SectionPreset memory selector 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 PanelInput module slot: 6 (input/output module slot: 2)
Output module slot: 2
Remote control module slot: 1
Operating Temperature+5 to +40 °CFinishPanel: Aluminum, hair-line finish, black
Others: Pre-coated steel plate, black (30% glossy)Dimensions482.6 (w) x 132.6 (h) x 320 (d) mm (excluding projection)Weight6.9 kg
