User manual SOUNDCRAFT SM20 BROCHURE

[. . . ] SM20 Typical Specifications Frequency Response T. D. (All measurements at +20dBu) XLR Input to any Output . +0/-0. 5dB, 20Hz - 20kHz Line In to Group or Mix Out . Less than 0. 005% @ 1kHz Less than 0. 025% @ 10kHz Mic Input E. [. . . ] Each ouput is also equipped with AFL solo with ±10dB trim, and a MUTE switch which is positioned alongside each fader. OPTIONAL VU METERBRIDGE An optional VU meterbridge can be installed which contains 22 VU meters, 20 of which monitor the output busses. The additional 2 meters are dedicated to the wedge output, which will meter any output on the console which is currently set to solo. All VU meters are illuminated using LED backlighting, not filament based lamps which would be unreliable and prone to failure. Also, each VU meter incorporates a peak LED which lights when output rises to within 3dB of clipping level. BSS VARICURVETM REMOTE CONTROL When the BSS FPC-900 is inserted into the MIDI loop of the SM20, the AFL solo keys on the output modules will automatically select the appropriate page on the FPC-900's screen. Outboard settings which apply to that particular output channel can then be edited direct from the FPC-900, quickly and accurately. This feature saves a great deal of time, as in a matter of seconds the operator can flick through all the outboard settings on every channel, and make any necessary adjustments without leaving the console's central mixing position. There is also less chance of adjusting the wrong output's EQ by mistake. BACK PANEL CONNECTIONS Each monitor output has a fully balanced insert point, with sends and returns on separate 1/4" jacks. There are therefore 20 sets of jack sockets, designated 1-6, 7A thru 12B, L and R. There are also balanced XLRs for the main outputs and external inputs. INPUT STAGE The SM20's mic input stage uses identical circuitry to that developed for Soundcraft's highly successful Series FIVE front-of-house console, which in turn was developed in response to customer feedback. The external inputs feature is useful as a bus input when linking two consoles together. GROUPS TO L/R Another element of the SM20's flexibility is that it can be used as a front-of-house console if required. The GRP to L/R switches feed the monitor busses into the master L/R outputs (outputs 19 and 20), allowing you to manufacture a front-of-house mix. Each monitor output can be switched into either L or R, regardless of which side of a stereo send it occupies. Master Section (1) Master Section (2) WEDGE MONITOR SECTION In addition to the 20 output busses of the SM20 console, another four outputs are provided, which are designated wedge and alt wedge, in two stereo pairs. The wedge output normally outputs any PFL or AFL signals caused by an input or output solo being pressed, and when no solos are selected, the wedge output would normally be silent. However, the L/R TO WEDGE button allows you to listen to the L/R mix through the wedge output as the default monitoring state. An alternate wedge output is also provided, to allow you to monitor your outputs on another system, e. g. you could have the wedge output feeding conventional wedges and the alt wedge output feeding an in-ear system. Switching alt wedge on automatically mutes wedge. Alt wedge can be sourced PRE or post the main wedge fader. [. . . ] As standard, the console shall be provided with 6 triple group output modules and 1 double-width master module. All frames will be supplied with a separate CPS800 19 inch rackmounting power supply. There shall be an optional VU output meterbridge for all sizes except the 32ch. The input module shall have the following features; an electronically balanced low impedance input via an XLR socket with parallel connection to a passive mic split output, continuously variable gain giving a sensitivity range of -2dBu to -70dBu (high gain range) and -20dBu to +10dBu for high level inputs, switchable 48V phantom power, a variable 20-400Hz high-pass filter, phase reverse switch, by-passable 4-band sweep equaliser 1kHz to 20kHz (HF) 450Hz to 12kHz (HMF), 70Hz-1. 5kHz (LMF) and 30Hz to 480Hz (LF). [. . . ]