32 Discrete 5 Vdc control lines provide manual or PC control of 8 input to 4 output audio mixing, switching and routing. Multiple audio channels may be summed or soft-switched with exceptional low distortion, low noise, frequency response and attenuation. Model A is 8 x 4 stereo. Model B is 8 x 4 monaural.
| Inputs (switched): | 8 line-level, 10 kΩ balanced or unbalanced via plug-in terminal block |
| Inputs (direct): | 8 unbalanced via plug-in terminal block, -2 dBu |
| Input Level: | -10 dBV to +8 dBu (for +4 dBu output) Max input +24 dBu |
| Headroom: | > 18 dB above +4 dBu |
| Gain: | Adjustable for each input, 25-turn trimmer, -6 dB to 12 dB |
| Frequency Response: | 10 Hz to 30 kHz (+/-0.25 dB, bridging load) |
| THD+N: | < 0.010% (20 Hz to 20 kHz) |
| Intermodulation Distortion: | < 0.025% (20 Hz to 20 kHz) |
| Input Channel Crosstalk: | |
| Left into Right: | Better than 80 dB (10 Hz to 15 kHz) |
| Left into Right: | Better than 75 dB (15 kHz to 20 kHz) |
| Right into Left: | Better than 70 dB (10 Hz to 15 kHz) |
| Right into Left: | Better than 65 dB (15 kHz to 20 kHz) |
| Residual Noise: | < -80 dB (Channel ON; referred to +4 dBu) |
| 'Off' Attenuation: | > 80 dB (10 Hz to 20 kHz) with adjacent input channels OFF
> 80 dB (10 Hz to 10 kHz);
> 75 dB (10 kHz to 20 kHz) with adjacent input channel ON |
| Indicators: | Front panel LEDs indicating activity; IDLE if no channel active; ACTIVITY if any channel active |
| Common Mode Rejection: | > 50 dB (50 to 120 Hz) |
| Outputs: | 4 balanced, 150 Ω balanced or unbalanced via plug-in terminal block |
| Power Requirement: | GROUND-REFERENCED, 24 Vdc @ 575 mA or 24Vac @ 575 mA (separate jacks) |
| Mounting: | Standard 19†Rack-mount; 1 RU |
| Dimensions: | |
| Height: | 1.75 in 4.4 cm |
| Width: | 19.00 in 48.3 cm |
| Depth: | 8.00 in 20.3 cm |
| Ambient Operating Environment: | 0° C to 55° C |
