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Set output level from preamplifier or line transformer in INPUT A or B. Used to balance gains or set average compression.
Displays output level in volume units (VU) or dB of compression. Meter is illuminated when power is on.
Effective in line mode to insert loss. In limiter mode, control is shorted out by LIMITING switch.
Adjusts output level of composite signal from INPUT A and B, up to +27 dBm.
Applies DC power from rectified low-voltage AC or external battery. Includes a circuit breaker.
Selects meter function as VU OUTPUT (line/limiter) or GAIN LEVEL (limiter only).
Selects fast (speech) or slow (music) attack/release times.
Selects line or limiter amplifier mode.
Resets overload protection in transformer primary. Not effective during DC operation.
Protects against excessive drain from external battery. Replace with same type ½-ampere slow-blow fuse.
Allows combining with other ALTEC equipment having MULTIPLE or MASTER MULTIPLE connectors.
Connects to similar jack of second 1612A for desired gain control interaction in stereo installation.
Accept XLR-3 type connectors from 150-ohm microphone, magnetic phono, or high-level line sources.
Accept 150-ohm microphone preamplifier module, phone preamplifier module, or line bridging transformer.
Connects 1612A to 150-ohm load or 600-ohm load.
For auxiliary operation or standby switchover to external 24/28V DC supply.
Specifies factory connection of primary winding for indicated option: 120V AC or 240V AC.
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