• 250 watts (stereo) or 500 watts (mono) Balanced and unbalanced inputs
• Exclusive McIntosh Output Autoformer®
• Wide power bandwidth, low distortion
• Exclusive McIntosh Power Assurance System
• Illuminated Peak-Responding Wattmeters
• Fiber optic light diffuser illumination for front panel nomenclature
• Fanless convection cooling
• Stainless steel chassis with super mirror finish

RMS POWER OUTPUT

250W min. (stereo) or 500W min. (mono and bi-amp parallel) sine wave continuous average power output from 20Hz to 20kHz.

RATED POWER BAND

20Hz to 20kHz

TOTAL HARMONIC DISTORTION Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is 0.005%.

DYNAMIC HEADROOM

2.0dB

FREQUENCY RESPONSE

20Hz to 20kHz, +0 / -0.25dB

10Hz to 100kHz, +0 / -3dB

INPUT SENSITIVITY

1.6V unbalanced

3.2V balanced

A-WEIGHTED SIGNAL-TO-NOISE RATIO:

112dB below rated output

INTERMODULATION DISTORTION Maximum Intermodulation Distortion if instantaneous peak output per channel does not exceed twice the rated output,

for any combination of frequencies from 20Hz to 20,000Hz, with all channels operating is 0.005%.

INPUT IMPEDANCE

10,000 ohms (unbalanced)

20,000 ohms (balanced)

OUTPUT LOAD IMPEDANCE Terminals for 2, 4, or 8 ohms (stereo)

Terminals for 4, 8, or 16 ohms

(mono)

Terminals for 1, 2, or 4 ohms

(bi-amp parallel)

WIDE BAND DAMPING FACTOR

Greater than 40

POWER GUARD

Clipping is prevented and THD

does not exceed 2% with up to 14dB overdrive at 1kHz.

POWER REQUIREMENTS

120V, 50/60Hz, 6.6A

OVERALL DIMENSIONS

(H x W x D including feet and knobs)

9-7/16" (23.97cm) x 17-1/2" (44.45cm) x 14-13/16" (37.62cm)

WEIGHT

94-1/2 lbs. (42.87kg) net

108-1/2 lbs. (49.22kg) boxed