Operating - McIntosh MC2505 Owner's Manual

OPERATING THE MC 2505 STEREO AMPLIFIER
LEFT GAIN Use the left gain control to adjust the volume in
the left channel to the desired listening level.
Turn the control clockwise to increase the
volume.
RIGHT GAIN Use the right gain control to adjust the volume
in the right channel to the desired listening level.
Turn the control clockwise to increase the
volume.
METER RANGE The meter switch has four positions. The first
position is off. With the switch in the OFF posi-
tion there is no indication on the meters.
- 20: In this position of the meter range switch,
the amplifier will deliver ¼ watt (250 milliwatts)
when the meter indicates "0." With a meter indi-
cation or — 3 dB, the amplifier delivers % watt
(125 milliwatts) and a —10 dB meter indication
the amplifier delivers 25 milliwatts.
-10: In this position of the meter range switch,
the amplifier will deliver 2½ watts output when
the meter indicates "0." With a meter indication
of — 3 dB, the amplifier delivers 1 ¼ watts output
and a —10 dB meter indication, the amplifier de-
livers ¼ watts.
— 0: In this position of the meter range switch,
the amplifier will deliver 50 watts when the meter
indicates +3 dB, with meter indication of "0,"
the amplifier delivers 25 watts, with a meter indi-
cation of -3 dB, the amplifier delivers 12½
watts; and a meter indication of -10 dB, the
amplifier delivers 2½ watts.
HEADPHONE Use the jack for low impedance stereo head-
phones. Any headphones with 4, 8,16 ohms may
be used with this jack. The headphone jack is on
at all times.
SPEAKERS OFF: The loudspeakers are turned off when the
SPEAKER switch is in the OFF position. You can
listen to headphones in private.
THIS SWITCH MUST BE IN THE "ON" POSI-
TION TO HEAR MUSIC FROM THE LOUD-
SPEAKERS.
ON: Music will be heard through the loud-
speakers. Use this as the normal listening posi-
tion.
POWER The power switch turns the MC 2505 on or off.
The switch does not control the power outlet on
the back panel. If you wish to control the opera-
tion of the on/off switch from a preamplifier con-
trol center leave the switch in the ON position.
In this case be sure to plug the AC cord of the
MC 2505 into the controlled outlets on the rear
of the preamplifier control center.
OFF: In the OFF position the amplifier is turned
off.
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