There are eleven input channels which can be fitted in any free position in the lower part of the mixer chassis. The input and output channels can be optionally fitted with high quality Penny & Giles conductive plastic faders (available to special order - contact Sales for details). Each of the input channels can be programmed to enable/disable any of the button functions, if required, as well as to enable different modes of operation of fader-up/ON button.
S2-CML Mic/Line Input Channel
A mono input with a switch button to select either Mic or Mono Line. If the Mic input is used for the presenter's mic it can also become the talkback mic. The talkback function will be retained when the channel input is switched to Line. Equalisation is fitted as standard on this channel and is enabled by the EQ button, providing 10dB cut and boost at HF (6.5kHz) and LF (100Hz). The Mic input has a jumper- selectable high-pass filter to remove low frequency intrusions. A Pan control is available to facilitate stereo imaging. A balanced, line level, insert send and return is available for the Mic input but is disabled in Line mode. Channel coarse gain is set by internal presets for mic and line; fine gain is trimmed by the front- panel Trim control providing +/-12dB of gain. The channel has a Pre Fade Listen (CUE/PFL) facility that can be automatically disabled when the fader is opened. There are remote-control logic inputs for Mic Cough muting and Reverse Talkback, and output controls for Mic cue lights and Line remote start/stop by fader or ON button. (The remote outputs on the 9-way D-sub connector are fed from NPN opto-isolators). The Mic input provides a jumper-selectable output to facilitate either Control Room or Studio Muting and Timer functions. In addition the Line input can be configured with all the features of the Mic input when used as a Mic input with an external mic amp.
S2-CMM Mic/Mic Input Channel
Has all the features of the Mic/Line Input channel except that the Line input is replaced by a second Mic input.
S2-CS Dual Stereo Line Input Channel
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Has two balanced stereo inputs with a button switch to select between them. Each input is on XLR connectors with internal coarse gain adjustment. Fine gain is trimmed by the front-panel Trim control providing +/-12dB of gain. A Balance control is available for small adjustments of the stereo image. The channel has a Pre Fade Listen (CUE/PFL) facility that can be automatically disabled when the fader is opened. There are remote control logic outputs for each of the two inputs, providing start/stop functions by fader or ON button. The start function can be configured to be either momentary (500mS) or latched for each input. The remote control outputs on the 9-way D-sub connectors are fed from NPN opto-isolators.
S2-CSE Dual Stereo Line Input with EQ Channel
This channel is similar to the S2CS as above but fitted with equalisation, providing 10dB cut and boost at HF (6.5kHz) and LF (100Hz).
S2-CSG Stereo Line with Gram Input Channel
Similar to the S2CS, fitted with a RIAA input amplifier for use with magnetic turntable pick-up cartridges on the second input. Input connections for this are unbalanced on phono sockets. This channel is also available with equalisation, type S2-CSGE.
S2-CDS Digital Dual Stereo Input Channel
Has two 24-bit 96kHz digital inputs with a button switch to select between them. Either input can be configured to be balanced AES/EBU on standard XLR, or S/PDIF on phono sockets, selected by internal jumpers. The digital signals are converted to analogue and from this point the channel functions are the same as the Dual Stereo Line Input channel.
S2-CDSE Digital Dual Stereo Input with EQ Channel
As the Digital Dual Stereo Input channel as above but fitted with equalisation, providing 10dB cut and boost at HF (6.5kHz) and LF (100Hz).
S2-C6SS Six-Way Stereo Line Source-Select Channel
Has six balanced stereo inputs on a 25-way D-sub connector, selectable by a six- way mechanical interlocking switch bank. The switch bank also controls six sets of remote-control connections allowing each source to have a set of start/stop remote controls. The channel is fitted with EQ as standard and other functions similar to the dual stereo input channel.
S2-CT Telco Input Channel
Controls the connection to an external telephone balance unit (hybrid) such as the Sonifex HY-03. It has only one mono input with EQ fitted as standard. Equalisation is enabled by the EQ button, providing 10dB cut and boost at HF (6.5kHz) and LF (100Hz). A Pan control is available to facilitate stereo imaging. A balanced line level output is provided for the clean-feed back to the hybrid. Channel coarse gain is set by an internal preset and fine gain is trimmed by the front-panel Trim control providing +/- 12dB of gain. The channel has a Pre Fade Listen (CUE/PFL) facility that automatically routes talkback to the caller when selected. PFL can be automatically disabled when the fader is opened. There is a remote-control logic output to place the hybrid "on hold" by fader or ON button. The remote control output on the 9-way D-sub connector is fed from an NPN opto-isolator. The bus system allows for two true clean-feed systems when routed to the PGM outputs. Off-line phone conversations can be recorded via the AUD bus where a clean-feed is generated by the mix-minus method.
S2-CSMM Stereo Mix-Minus Channel
The Stereo Mix-Minus channel has one balanced stereo input and a balanced stereo mix-minus output, on XLR connectors. The channel is intended for use where a remote stereo source, such as another studio connected via ISDN, requires a stereo clean-feed return. The clean-feed is generated by the mix-minus method from either the PGM or AUD outputs, depending on the routing selection. The outputs on the Mix-Minus channel can also be configured as follows: Left channel - mono sum of mix-minus; Right channel - Continuous talkback. This is for use with some ISDN codec applications and mono telephone balance units. Equalisation is fitted as standard on this channel and is enabled by the EQ button, providing 10dB cut and boost at HF (6.5kHz) and LF (100Hz). Coarse input gain is adjusted internally. Fine gain is trimmed by the front panel Trim control providing +/-12dB of gain. A Balance control is available for small adjustments of the stereo image. The channel has a Pre Fade Listen (CUE/PFL) facility that can be automatically disabled when the fader is opened. There is a remote-control logic output, controlled by fader or ON button, which can be configured to be either momentary (500mS) or latched. The remote outputs on the 9-way D-type connector are fed from NPN opto-isolators.