User manual BIAMP EQ 210

[. . . ] · · · · · · · · · · · · · · · · · six balanced microphone/line level mixer input channels two balanced/summing line level mixer input channels high & low tone controls on each mixer input channel independent main & aux level controls on each channel trim control & peak indicator on each mic/line input channel additional balanced line input for emergency page interrupt main & aux mixer outputs with master level controls mixer functions provided on screw-driver adjustable controls optional VCA cards for remote control of input/output levels 9-band graphic equalization integrated at amplifier input patch points provided for mixer outputs & equalizer input mixer inputs & outputs on front panel plug-in barrier strips output taps for standard and distributed speaker systems +48 Volt phantom power selectable for microphone inputs "in-wall" or "surface-mount" chassis with security cover UL and C-UL listed covered by Biamp Systems' five-year warranty IMPORTANT SAFETY INFORMATION Read these instructions. Do not block any of the ventilation openings. Install in accordance with the manufacturers instructions. WARNING - To reduce the risk of electric shock, do not expose this apparatus to rain or moisture. [. . . ] Use 20dB Pad whenever input signal levels cause the channel Peak indicator to light more often than just on occasional peaks. Peak: These red LEDs will light whenever channel signal levels reach +10dB (8dB below clipping). Use this feature to aid in proper adjustment of Gain and 20dB Pad (see above). Phantom Power: These DIP switches assign +48 Volt DC to the respective inputs for powering condenser microphones. Phantom Power should remain off when input is from line-level sources or dynamic microphones. Always turn AC power off, or turn all level controls down, before switching Phantom Power. FRONT PANEL FEATURES Inputs (Channels 1~6): These plug-in barrier strips provide mic/line input to Channels 1~6. These inputs accept signals from balanced low-impedance microphones or from balanced (or unbalanced) line-level sources. Balanced input (Mic or Line) is wired high to (+), low to (-), and ground to ( ). Unbalanced Line input is wired high to (+), and ground to both (-) and ( ). Phantom Power (+48V) is selectable per input (see above) and remote level control is optional. Inputs (Channels 7 & 8): These plug-in barrier strips provide line level input to Channels 7 & 8. From the factory, a jumper wire between "Main Out" and "Main EQ In" routes signal from the Main Out control to the Main Equalizer and the Main Amplifier. Signal processing may be inserted between the mixer and the equalizer by first removing the jumper wire, then wiring "Main Out" to processor input and "main EQ In" to processor 3 output, using a common ground ( ). To access unbalanced Main Out from the mixer (to feed recorders, auxiliary amps, etc. ) wire high to "Main Out" and ground to ( ), without removing the jumper wire. NOTE: If the jumper is removed, the main output and equalizer input are separated (no signal passes between them). Aux Out: The Aux Out screw-driver control sets the overall level of signals sent (from channel Aux controls) to the Aux Out connector. The Aux Out connector is a plug-in barrier strip, which provides a balanced line-level output for feeding external equipment (recorders, auxiliary amplifiers, etc. ). For unbalanced output, wire high to (+) and ground to ( ), leaving () un-connected. HPF: This DIP switch enables a high-pass filter (12dB/octave @ 125Hz) which reduces unnecessary low-frequency signals. Enable HPF whenever the 70V or 25V outputs are being used, or in any 'speech only' applications. Override: This DIP switch determines whether the Override Input will trigger muting of all other input signals automatically (via signal presence) or manually (via external switch). Main Equalizer: This 9-band graphic equalizer adjusts the frequency response (tonal balance) of signals sent to the Main Amplifier. [. . . ] Signal/Clip Indicator (not shown): This 2-color LED indicates the signal level for the amplifier. When the LED is green, the amplifier has signal (above -30dB). When the LED is red, the amplifier signal is clipping (max. CAUTION: Signal levels should be adjusted to avoid clipping. [. . . ]