
OUTBOARD POWER SUPPLIES
POWER SUPPLIES
For the L2M MkIII M/S Version, and all Requisite mainframe audio processors, there is a choice
of two different power supplies:
•
OPS-2D solid-state supply (1 to 2 channels)
•
RTS-4A all-tube supply (1 to 4 channels)
Each supply is configured for the number of channels required for use a specific mainframe(s).
Depending on the configuration, there will be a cable(s) with a single, multi-pin connector for
B+, Heaters, Meter Lights and phantom power, which brings power to the mainframe unit(s).
POWER ON
This switch is located at the outboard power supply. When first connecting the power supply to
an L2M mainframe, please be sure your main power switch is turned off. Once the connector is
seated, carefully thread the ring lock of the cable to the jack on the L2M mainframe. If powering
only one L2M unit, with a supply having extra cables, be sure the unused cable(s) is rolled-up
and fastened to the supply with a cover over the unused end.
POWER CABLE
Each supply has an IEC connector for mains A/C. In the U.S. and Canada, the supply is
shipped with a North America power cable. For other countries a power cable is not supplied
and must be purchased locally.
VOLTAGE SELECT
Each power supply has a VOLTAGE SELECT to allow operation with A/C mains of 120V or
240V.
FUSE
Each power supply has a replaceable FUSE for overcurrent protection. Be sure to use the Slo-
Blo type (1.25”/32mm long) at the rating indicated on the supply for the mains voltage being
used. When going from 120V to 240V be sure to reduce the fuse to 1/2 the AMP value of the
120V fuse. Otherwise, the fuse will be overrated and not offer the same level of protection.
THE L2M MKIII M/S VERSION
R e q u i s i t e A u d i o E n g i n e e r i n g! L2M MkIII
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