Specifications

Power Output

Minimum sine wave continuous average power output per channel, all channels operating is:

200 watts into 2 ohm load

200 watts into 4 ohm load

200 watts into 8 ohm load

Rated Power Band

20Hz to 20,000Hz

Total Harmonic Distortion

Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is: 0.005% for 2, 4 or 8 ohm loads

Dynamic Headroom 2.4dB

Frequency Response

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

Preamplifier Maximum Voltage Output

Phono, 8V at tape output

High Level, 8V at tape output

Main Out, 8V at preamp output

Voltage Gain

High Level to Tape: 0dB

High Level to Main: 20dB

Wide Band Damping Factor

Greater than 40

Power Requirements

100 Volts, 50/60Hz at 4.8 amps

110 Volts, 50/60Hz at 4.4 amps

120 Volts, 50/60Hz at 4.0 amps

220 Volts, 50/60Hz at 2.0 amps

230 Volts, 50/60Hz at 2.0 amps

240 Volts, 50/60Hz at 2.0 amps

Note: Refer to the rear panel of the MA6900 for the correct voltage.

Sensitivity

Phono, 2.5mV for 2.5V rated output (0.5mV IHF) High Level, 250mV for 2.5V rated output (50mV IHF) Power Amplifier Input, 2.5V for rated output

Signal To Noise Ratio (A Weighted)

90dB (84dB IHF) below 10mV input, Phono Input 100dB (90dB IHF) below rated output, High Level 110dB below rated output, Power Amplifier

Intermodulation Distortion

Maximum Intermodulation Distortion if instanta- neous peak output per channel does not exceed twice the rated output, for any combination of fre- quencies from 20Hz to 20,000Hz, with all channels operating is:

0.005% for 2, 4 or 8 ohm loads

Input Impedance

Phono, 47K ohms, 65pF

High Level, 22K ohms

Maximum Input Signal

Phono, 90mV

High Level, 8V

Overall Dimensions

Front Panel: 17-1/2 inches (44.45cm) wide, 7-1/8 inches (18.10cm) high. Depth behind front mounting panel is 16- 1/2 inches (41.91cm). Clearance required in front of the Front Panel is 1 inch (2.54cm) for knobs.

Weight

74.5pounds (33.8 Kg) net, 92.5 pounds (41.7 Kg) in ship- ping carton