Jeff Rowland Design Group 1 - Manual (Page 5)

• AC power switch
• AC power connector
• AC line fuse
Stereo operation with a single-ended output preamplifier
For standard operation, insert the interconnect cables from your preamp to the non-
inverting RCA inputs. Insert shorting plugs into each of the inverting RCA inputs. If you
desire inverted operation, reverse the above procedure. Either of the two paralleled
outputs can be used, or all four if you are bi-wiring your speakers.
Stereo operation with a balanced output preamplifier
Insert the output of your preamplifier into either the differential XLR input or both the
single-ended inverting and non-inverting RCA inputs. You can then utilize either of the
two paralleled outputs, or all four if you are bi-wiring your speakers.
Bridged-mono operation with a single-ended output preamplifier
The following is the procedure for each amplifier: Insert the interconnect from your
preamp into the right channel non-inverting input. There is a small switch, labeled
"BRIDGE," located between the right channel XLR input and the AC standby switch; flip
this switch up, into the "ON" position. Insert one of the XLR shorting plugs into the right
channel XLR input. Connect the "hot" conductor of your speaker cable to one of the right
channel outputs; connect the "ground" conductor of the cable to one of the left channel
outputs.
Bridged-mono operation with a balanced output preamplifier
The following is the procedure for each amplifier: Insert the output of your preamplifier
into the right channel differential XLR input. There is a small switch, labeled "BRIDGE,"
located between the right channel XLR input and the AC standby switch; flip this switch
up, into the "ON" position. Connect the "hot" conductor of your speaker cable to one of
the right channel outputs; connect the "ground" conductor of the cable to one of the left
channel outputs. (NOTE: Do not use the XLR shorting plugs with this application.)
Basic Troubleshooting
If your amplifier does not turn on:
1. Make sure the power cord is connected to both the inlet at the back of the amp and
an appropriate AC power source.
2. Check the power supply fuses located next to the AC inlet; there are two fuses-one is
a spare.
If your amplifier shuts down after being turned on, with or without the
presence of signal: