Radio Design Labs SYS84A
8x4 Audio Mixing Matrix/Stereo

SYS84A

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.

Features:

• Studio Quality Audio Routing & Mixing
• 8 In by 4 Out with Direct Mix Capability
• RS-232 Control of Audio Routing and Mixing (see SYS-CS1 Control Interface)
• Pull-to-Ground or Computer I/O Card Activation
• Stereo or Mono Models Available

Typical Performance:

Inputs (switched): 8 line-level, 10 kO 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 15kHz)
• Left into Right: Better than 75 dB (15 kHz to 20kHz)
• Right into Left: Better than 70 dB (10 Hz to 15kHz)
• Right into Left: Better than 65 dB (15 kHz to 20kHz)

Residual Noise: < -80 dB (Channel ON; referred to +4 dBu)

'Off' Attenuation:

• > 80 dB (10 Hz to 20 kHz) with adjacent input channelsOFF
•  > 80 dB (10 Hz to 10 kHz);
•  > 75 dB (10 kHz to 20 kHz) with adjacent inputchannel 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 O 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.
• Width: 19 in.
• Depth: 8 in.

Our Part #  SYS84A