Conrad-Johnson LP260m mono-
block power amplifier Owner’s Manual
5
center conductors, and a separate external shield connected at
only one end).
Physical location and cable “dress” can be an important factor in
minimizing hum pickup. The installation should situate the
preamplifier well away from the power amplifier, and power (ac
mains) cords should be dressed to remain at least 4" (100mm)
away from input/output cables.
Connection
INPUT:
Connect the preamplifier to your LP260m mono-block
power amplifier at the RCA type connector located on the back of
the amplifier.
OUTPUT:
Five-way binding posts are provided for connection of
your loudspeakers, with correct spacing to accept a standard
"double banana" plug. They will also accept spade lugs, bare wire,
or pin connectors.
In a stereo system, the two channels should be connected in
correct "relative phase". This means that when the same signal is
applied to both channels, the right and left channels speaker
diaphragms will move synchronously - in and out together.
Terminals on speakers are usually coded - one designated "C",
"ground", "-" or black, the other designated "+" or red. "In phase"
connection of the speakers can normally be achieved by taking
care to connect the wire from the "+" amplifier terminal to the red or
"+" coded terminal on each speaker, and connecting the "-"
terminal to the black or "-" coded terminal on each speaker. In
phase connection of the speakers can be readily ascertained by
ear. Listen to a recording of a solo vocalist (use a mono recording
if available). With the speakers in phase the voice should be clearly
focused between the two speakers. With the speakers connected
out of phase, the voice will be diffused, with no identifiable source.
Relative phase may be reversed by switching the "+" and "-" leads
at one speaker only.
