McIntosh MA7000 owner manual Specifications Specifications

Specifications

Specifications

Power Output

250 watts is the minimum sine wave continuous average power output per channel, both channels operating

Output Load Impedance

2, 4 or 8 ohms

Rated Power Band

20Hz to 20,000Hz

Total Harmonic Distortion

0.005% maximum with both channels operating from 250 milliwatts to rated power, 20Hz to 20,000Hz

Dynamic Headroom 2.0dB

Frequency Response

+0, -0.5dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz

Preamplifier Main Output (for rated input)

2.5V unbalanced (8V Maximun)

5.0V balanced (16V Maximun)

Sensitivity (for rated output)

High Level, 250mV unbalanced, 500mV balanced Phono, 1.2 mV

Power Amp In, 2.5V

Signal To Noise Ratio (A-Weighted)

High Level, 100dB below rated output

Phono, 84dB below 5mV input

Power Amplifier, 115 below rated output

Intermodulation Distortion

0.005% maximum, if the instantaneous peak power is 500 watts or less per channel with both channels operating for any combination of frequencies from 20Hz to 20,000Hz

Wide Band Damping Factor

Greater than 40

Input Impedance

High Level, 20K ohms

Phono, 47K ohms; 65pF

Power Amp In, 10K ohms

Maximum Input Signal

High Level, 8V unbalanced, 16V balanced

Phono, 45mV

Power Amplifier In, 16V

Main Output Impedance

50 ohms

Power Guard

Less than 2% THD with up to 16dB overdrive at 1,000Hz

Voltage Gain

High Level to Rec Output: 0dB

High Level to Main Output: 20dB

Phono to Rec Output: 46dB

Phono to Main Output: 66dB

Power Amplifier: 25dB

Equalizer Controls

Variable 12dB boost to 12dB cut at 30Hz, 150Hz, 500Hz, 1500Hz and 10,000Hz

Power Requirements

100 Volts, 50/60Hz at 8.0 amps

110 Volts, 50/60Hz at 7.2 amps

120 Volts, 50/60Hz at 6.6 amps

220 Volts, 50/60Hz at 3.3 amps

230 Volts, 50/60Hz at 3.3 amps

240 Volts, 50/60Hz at 3.3 amps Standby: Less than 1 watt

Note: Refer to the rear panel of the MA7000 for the correct voltage.

Overall Dimensions

Width is 17-1/2 inches (44.45cm)

Height is 9-7/16 inches (23.97cm) including feet

Depth is 22 inches (55.88cm) including the Front Panel, Knobs and Cables

Weight

97.5pounds (44.3 kg) net, 130.5 pounds (59.2 kg) in ship- ping carton

Shipping Carton Dimensions

Width is 29-1/2 inches (74.93cm)

Depth is 29 inches (73.66cm)

Height is 17 inches (43.18cm)

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