McIntosh MC 2300 Service Manual

Page 1

I 11113511
M02300

POWER AMPLIFIER

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MC 2300
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3 0 0 / 3 0 0 W A T T S T E R E 0 P 0 W E R A M P L 1 Fl E R

SERVICE INFORMATION

STARTING WITH SERIAL N0. TYOOT

OOSZ 3W

McINTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW YORK

Page 2

MC 2300

POWER OUTPUT:

Stereo -

Mono -

ELECTRICAL SPECIFICATIONS

300 RMS watts continuous per channel into 0.5, l, 2, A,
8 or l6 ohms both channels operating.
600 RMS watts continuous into 0.25, 0.5, l, 2, A, or 8

ohms.

HARMONIC DISTORTION:

Stereo -

Less than 0.25% at 300 watts output from ZOHZ to 20kHz
both channels operating. Typical performance is less
than 0.17 at rated power. Distortion decreases as

output power is reduced.

lNTERMODULATlON DISTORTION:

Stereo -

Mono -

Less than 0.25% iF instantaneous peak power output

is 600 watts or less per Channel with both channels
operating for any combination of frequencies 20Hz to
ZOkHZ.

Less than 0.25% if instantaneous peak power output

is I200 watts or less For any combination of frequencies

20Hz to 20kHz.

FREQUENCY RANGE:

20Hz to 20kHz +0, -0.5dB at rated power for all outputs; except

0.5 and 2 ohms, ~IdB.

lez to 35kHz +0, -l.SdB at one-half of rated power.

NOISE AND HUM:

90dB or more below rated output.

OUTPUT IMPEDANCE:

Stereo -

Mono -

0.5, I, 2. A, 8, and I6 ohms.
0.25, 0.5, I, 2, h and 8 ohms.

OUTPUT VOLTAGES:

Stereo -

Mono -

DAMPING FACTOR:

IZ, I7.S, 2h.5, 35, A9 and 70 volts.
12, l7.5, 2A.5, 35, A9 and 70 volts.

27 at 0.5 ohms output. Zl at h ohms output.
50 at I ohm output. lh at 8 ohms output.
29 at 2 ohms output. 13 at l6 ohms output.

INPUT IMPEDANCE:

200,000 ohms.

INPUT SENSITIVITY:

0.5 volts.

Level controls provided For higher input voltage.

POWER REQUIREMENTS:

l20 volts AC 50/60H2, I60 watts at zero signal output. IAOO

watts at rated output.