Modular Sound Mixer

Input Module

This innovative universal module can be configured by small jumpers on the circuit board to accept input from low impedance balanced microphone, stereo line and phono (RIAA) input sources. Each module can be switched between 2 input sources.

The possible input selections are:- Mic - Phono; Mic - Line; Line - Line; Phone - Line.

This module is optionally available with rotary fader instead of the standard linear fader.

Input selection: A toggle switch allows rapid selection of the A or B input. Red and green leds provide clear visual indication of the input selected. Adjacent areas are provided to label the input sources.

Gain: Allows the operator to compensate for variations in programme material. Rear panel gain trims are also provided to set the maximum gain available on any input.

Peak: A red led indicates when the peak signal level in the module is just below clipping.

Equalisation: 3 band eq on all inputs. +6dB boost -20dB cut. Special eq versions are available to order.

AUX 2: Push button with led illumination. The signal in this module is mixed with any other source selected. The resulting mix is available at AUX 2 outputs on the master module. Can be pre or post fade.

AUX 1: Similar to AUX 2. A rotary control replaces the switch so that a separate level mix of channels is available at the AUX 1 outputs on the master module. Can be pre or post fade.

Bal/Pan: Stereo balance and pan. With a stereo source selected this control provides adjustment to balance stereo signals. With a microphone source selected or the mono switch depressed this control allows the source to be panned anywhere in the stereo image.

PFL: Pre Fade Listen. Push button with red illumination. When depressed the signal in this module is connected to the PFL Mix Buss. Any number of channels may be selected simultaneously; the sum of which will be available in the master module for monitoring.

Mono: Push button with red led illumination. When depressed this switch links left and right signals and allows stereo signals to operate in mono.

XFA: Crossfade A select. Depressing the switch routes the channel signal via the VCA controlled crossfader channel A.

XFB: Crossfade B select. Depressing the switch routes the channel signal via the VCA controlled crossfader channel B. Red and green led switch illumination along with similar illumination on the crossfader gives good visual indication of routing status.

Fader: A 60 mm studio quality linear fader provided to fade up and down the volume channel is provided as standard. A rotary rader is available as an option.

Mute: Push button with red led illumination. When depressed signal feeds to the programme busses are muted. AUX 1 and AUX 2 are not affected. (Can be disabled if not required). Factory option: may be rewired to provide low voltage remote start switch via a 3.5mm jack socket on the rear panel.