Download 460 Presentation Audio Mixer
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Symetrix 460 Presentation Audio Mixer User’s Guide Architects and Engineers Specifications The PAM shall utilize 24-bit Sigma-Delta A/D and D/A converters operating at 48 kHz sample rate. The PAM shall have 4 balanced, symetrical line inputs, 4 unbalanced line inputs, and 4 balanced line outputs. All audio I/O connections shall utilize Euroblock connectors with the exception of the unbalanced line inputs which shall utilize RCA female connectors. The Presentation Audio Mixer (PAM) shall provide all of the following audio mixing, processing and control functions. All mixing, processing and control shall be accomplished through digital signal processing (DSP). Functions and features provided: • • 2 mono inputs, accept microphone or line level signals, may be operated ganged stereo or separated mono. These inputs provide 12 V phantom powering. The PAM shall be UL listed and CE approved. The PAM shall occupy one unit of rack space. 2 stereo inputs, accept consumer (–10 dBV) linelevel signals. • 2 stereo inputs, accept +4 dBu or –10 dBV line-level signals. • 2 stereo outputs, accessible from any input at +4 dBu or –10 dBV nominal load. • All inputs have high pass and low pass filtering, downward expanders (gates) and separate level controls for outputs 1 and 2. • All outputs have 3-band equalization (low and high shelves with parametric mid-band). • All outputs have AGC, compression, or limiting dynamics processing available. • All outputs have stereo level controls and may be remote voltage controlled. • Each pair of outputs may be set to receive a mono sum of its inputs. • Remote program recall using active-low contact closures. • Remote control using RS232 or RS485 protocols. The PAM shall be the Symetrix 460 Presentation Audio Mixer. 32