BSS Audio
MSR-604ii User Manual version v1.4
Page 4
activated from the front of house mixing console by switching the desks phantom
supply. This remote attenuator allows the engineer to preserve the channel
headroom directly from the console in the event that an input is overdriven.
Each channel also provides a separate phantom powering selector switch providing
an independent 48V across the ‘mic input’ connector.
Each channel has two low impedance electronically balanced outputs on the rear
panel to feed the MAIN (Front of House) and the MONITOR mixing consoles.
These outputs may be independently configured by internal header blocks to drive
at mic (+3dBu clip) or at line (+23dBu clip) levels. A third setting allows these
outputs to be driven at +13dBu clip which gives a gain/headroom structure
compatible with earlier versions of the MSR-604. The two FEED XLR connectors on
the front panel offer microphone level transformer isolated and balanced outputs.
1
.2 MSR-602ii Power supply
The MSR-602ii is the system power supply providing all the necessary DC voltages
for the MSR-604ii. It utilises a custom designed low field toroidal transformer and
separate mu-metal screen to reduce the possibility of mains field coupling into the
electronic circuitry of the MSR-604ii.
The HEADROOM LED meter and high quality headphone amplifier give the
operator absolute confidence in signal integrity during setting up, and provide an
indispensable aid to trouble shooting and fault detection. The signal wiring
involved is contained with the power wiring in a multicore cable for simple
interconnection between units.
In addition it also carries the main system ground switch which has important
considerations within a large system for both safety and noise.
Please read
section 6.2; Grounding
carefully prior to operating the complete
system.
