MA6900 Integrated Amplifier
McIntosh Laboratory, Inc., 2 Chambers Street, Binghamton, New York 13903
tel (607) 723–3512
• U.S. toll-free (888) 979–3737 • fax (607) 772–3308 • www.mcintoshlabs.com
Max. Preamp Voltage Output
Preamp output: 8V
IHF Dynamic Headroom
2.4dB @ 2, 4, or 8 ohms
Damping Factor
> 40
Maximum Input Signal
High level: 8V
Phono: 90mV
Voltage Gain
High level to tape: 0dB
High level to main: 20dB
Input Impedance
High level: 22k ohms
Phono: 47k ohms, 65pf
Main in: 20k ohms
0601.MA6900.10k.MSP
Features & Specifications
RMS Power Output (8/4/2 ohms)
200W min. sine wave continuous
average power output per channel
from 20Hz to 20kHz with both
channels operating
Frequency Response
20Hz to 20kHz, +0 / -0.5dB
Output Load Impedance
2, 4, or 8 ohms
Rated Power Band
20Hz to 20kHz
Peak Output Current
> 50 amperes
Total Harmonic Distortion
0.005% max. at any level from
250 milliwatts to rated power per
channel from 20Hz to 20kHz with
both channels operating
Intermodulation Distortion
0.005% max. if instantaneous
peak power does not exceed
twice the rated output
Input Sensitivity
High level: 250mV for 2.5V rated
output (50mV IHF)
Phono: 2.5mV for 2.5V rated
output (0.5mV IHF)
PWR AMP IN: 2.5V for rated
output
A-Wtd. Signal-to-Noise Ratio
Phono: 90dB below 10mV
input (84dB IHF)
High level: 100dB below rated
output (90dB IHF)
Power Amp: 110dB below rated
output
2 x 200 watts (8/4/2 ohms)
Exclusive McIntosh output autoformers
Wide power bandwidth with ultra-low distortion
Exclusive McIntosh Power Assurance System:
Power Guard
®
clipping protection
Sentry Monitor
®
current protection
Thermal Cutout
DC Failure protection
Turn-On Delay
Soft Start inrush protection
Illuminated peak-responding wattmeters
Exclusive McIntosh 5-band equalizer circuit
Silent electromagnetic switching
Precision-trimmed volume control
Loudness Compensation
6 source selections (including phono); one balanced input
Switching for 2 outputs
Accommodates more sources with McIntosh MVS3 A/V Selector
Control data output for source components
Remote power control (1 main, 1 accessory, 2 switched)
Remote operation of lights, screens, and drapes with
McIntosh HC1 Home Controller
Electronically regulated power supply with double-shielded
transformer
Gold-plated input and output jacks
Fanless convection cooling
Modular construction with polished stainless steel chassis
Glass front panel with illuminated nomenclature
Infrared remote control
Connector for external IR sensor or keypad controller
Headphone jack
Bottom internal view
Top internal view
Equalizer Controls
Variable ±12dB at 30Hz, 150Hz,
500Hz, 1500Hz, and 10kHz
Power Guard®
Clipping is prevented and THD
does not exceed 2% with up to
14dB overdrive at 1kHz
Power Requirements
120V 50/60Hz, 4A
Dimensions (h x w x d)
inch: 7.125 x 17.5 x 18.75
cm: 17.9 x 44.5 x 47.6
knob clearance: 1" (2.54 cm)
Weight
74.5 lbs. (34kg) net
92.5 lbs. (42kg) shipping
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