BSS Audio MSR-602/604II Owner's Manual - Manual (Page 28)

2 6
MSR-600 II Series
together as described in section 3.2. Finally the pair of adaptor leads
are used to insert the Mk II units into the systems power circuit.
Early MSR-604 units may be added to a Mk II system, but will gain no
improvement in performance from the new system. They will run
slightly warmer since they will be running from a higher DC voltage
supply but there is no danger of damage or impaired reliability.
No changes are required to any internal jumpers or settings and
provided that the Mk I units are installed at the ‘end’ of the DC
daisychain, the performance of the Mk II units will not be affected in
any way.
The Mk I MSR-604s should be mounted at the bottom of the rack,
away from the power supply. Using the adaptor leads connect the
Mk I units between the MSR-602 II LOOP RETURN socket and the
final MSR-604 II LOOP OUT socket. If the units are wired into the DC
loop wiring at a different point, the LISTEN BUS and the EXBUS-IN/-
OUT linking between Mk II MSR units will be broken, disabling these
functions.
Mixing Mk I and Mk II power supplies and systems is not generally
recommended. Since they are designed to work at different DC rail
voltages, performance and facility will be reduced to the lowest common
denominator at best. Contact your BSS agent for availability and
Installing Pre Mk II MSR-604s Into a New System
Installing a Mk II Power Supply Into a Mk I System and Vice Versa
5.2 Installing Pre
Mk II MSR-604s Into
a New System
RACK INSTALLATION
5.3 Installing a
Mk II Power Supply
Into a Mk I System
and Vice Versa