ARCHITECTS & ENGINEERS SPECIFICATIONThe mixer shall have either three or six differentially balanced input channels utilizing discrete transistor preamplifier circuitry. Inputs shall accept microphone or line level signals. Each input shall include a screwdriver adjustable trim control with 40dB of range, a 30dB pad switch, a +10dB (peak) indicator, and a rotary level control. Automatic muting of the last input, via signal present in any or all of the other inputs, shall be assignable by rear panel DIP switches. Phantom Power shall be assignable to the individual inputs, via rear panel switches. Phantom Power shall be +24 Volts, switch selectable on each input.The master section shall include an electronically balanced main output, a rotary level control, a signal present indicator, screwdriver adjustable treble and bass equalization, a limiter with screwdriver adjustable threshold & indicator, remote control of level from up to 2000’ away, an electronically balanced stacking input, and a patch insert point for external signal processing. All signal connections shall be on plug-in barrier strip and the mixer shall be rack mountable in a single rack space.The mixer shall have a Frequency Response of +0/-1dB from 20Hz to 20kHz, THD + Noise of less than .02%, and Equivalent Input Noise of less than -125dBu. Power Consumption shall be less than 7 watts. Dimensions shall be 1.75” (H) x 19” (W) x 7” (D). Weight shall be 6 lbs. Warranty coverage shall be five years. The mixer shall be CE marked, with a UL / C-UL listed power source, and shall incorporate AES48-2005 Grounding & EMC practices. The mixer shall be compliant with EU Directive 2002/95/EC, the RoHS directive.The three input mixer shall be a BIAMP 301 Mic/Line Mixer.The six input mixer shall be a BIAMP 601 Mic/Line Mixer.