Fully-Balanced, Differential Multi-Channel Amplifier is a state-of-theart, high performance audio component built utilizing totally complementary circuitry from input to output. The high current power supply is driven by custom-designed, dual torrodial transformers with multiple windings for each channel. Each output module has 24 discrete output devices, 36,000 µF total filter capacitance and employs an advanced Opto-coupled protection circuit. Heat management is provided not by noisy fans, but by custom-designed heatsinks for each channel.
The Model 7900’s differential design virtually eliminates cross talk, through a technology known as “common mode rejection”. Compared to single-ended designs, the Model 7900 requires half the rail voltage for a given power allowing for increased transient performance. In addition, with a slew rate nearly double that of a comparable single-ended amp, the utmost control over transients is maintained ensuring distortion free performance. The result: an amplifier that remains unequivocally true to the source material.
Input selection occurs automatically as the Model 7900 includes an auto sensing circuit to determine which Input (XLR or RCA), by channel, is being used. XLR cables provide a fully balanced signal path from Input to output and the Model 7900’s RCA Inputs utilize a “semi-balanced” design, which provide a cleaner signal path than traditional RCA connections.
Specifications
Power output: 300 watts RMS x 7 (all channels driven simultaneously into 8 ohms from 20 Hz to 20 kHz with less than 0.05% total harmonic distortion).
Signal to Noise: >120dB below rated FTCfull bandwidth power
Power Bandwidth: 5 Hz - over 100 kHz (+0/-3 dB)
Crosstalk: Greater than -100 dB from 20 Hz to 20 KHz
Intermodulation Distortion: Less than .02% from 250mV to full rated FTC power
Voltage gain: XLR 28dB, RCA 28dB.
Slew rate: 50 Volts/microsecond
Remote Trigger voltage: 3 - 24 volts DC
Power requirements: 2x 230 V 50-60 Hz
Power consumption: 2x 1,440 watts (maximum)
Dimensions (W x H x D): 17.2 x 9.5 with feet x 19.5 (inches)
Weight: 145 (lbs)