User manual BIAMP MODEL 21 SERIES MIXING CONSOLE

[. . . ] One of the channels includes a level "ducking" feature, which can be triggered when signal is present in selected other channels (see Ch 3/6 Duck on next page). This "ducking" feature is useful in page-over-music applications. Bass: This screwdriver-adjustable control sets the low-frequency equalization (Bass) for the Main Out section. Bass is a shelving type filter, which provides +/-10dB of gain adjustment for frequencies below 100Hz. [. . . ] Clockwise adjustment raises the threshold, ultimately removing the limiter from operation. This control is factory set fully clockwise (limiter off). Limit Indicator: This red LED indicates when the limiter is activated by program signal levels that exceed the threshold setting. On Indicator: When the power transformer is plugged in, and AC power is applied to the mixer, the red On indicator remains lit. 2 REAR PANEL DC Power Supply: The included power supply module provides 24 Volt DC power to the mixer. It is connected to the DC Power Jack on the rear side of the mixer. To ensure compatibility, only use a Biamp Systems' supplied power supply. Main Out: These three terminals provide the electronically balanced Main Out from the mixer, wired with high to (+), low to (-), and ground to ( ). For unbalanced output, connect high to (+) and ground to ( ), leaving low (-) unconnected. Main Out signal is a mix of the input channel signals, plus signal from Stack In, as well as any processing which may be inserted at Patch (see Stack In & Patch below). Stack In: These three terminals provide a line level input for signals from external devices, such as other mixers. Stack Input signal is combined with the channel signals, before being sent to the Main Out section. Always turn Channel Level controls down before switching Phantom Power. Inputs: These terminals provide electronically balanced input to the channels, and will accept either microphone or line-level signals. Connect balanced inputs with high to (+), low to (-), and ground to ( ). For unbalanced use, connect inputs with high to (+) and ground to both (-) & ( ). Phantom Power is available for operation of condenser microphones (see Phntm Switches above). Pad Switches: These switches reduce the channel input signal level by 30dB. Depress this switch when channel input signal levels exceed the normal operating range of the front panel Trim control. Pad is typically released for mic input and depressed for line input. 3 REMOTE CONTROL Remote Control: When using a slide potentiometer as a remote control, wire with High (T) to the voltage terminal (`V'), Wiper (W) to the control terminal ("C"), and Low (B) to the ground terminal (` '). When using a rotary potentiometer, wire with High (CW) to the voltage terminal ("V"), Wiper (W) to the control terminal ("C"), and Low (CCW) to the ground terminal (" "). Potentiometers should be linear taper, of any value from 5k ohms to 50k ohms, and may be wired up to 2000 feet from the mixer. Cable should be 2-conductor with shield. [. . . ] BIAMP SYSTEMS DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The remedies set forth herein shall be the purchaser's sole and exclusive remedies with respect to any defective product. No agent, employee, distributor or dealer of Biamp Systems is authorized to modify this warranty or to make additional warranties on behalf of Biamp Systems. statements, representations or warranties made by any dealer do not constitute warranties by Biamp Systems. [. . . ]