McIntosh 168255 Owner's Manual page 37

Digital Audio Specifications
Digital Input Signal Format
Coaxial and Optical Inputs - SPDIF
MCT and USB Inputs - PCM, DSD
Digital Input Sample Rate
Coaxial and Optical: 44.1kHz to 192kHz, 24-Bit
MCT: 44.1kHz, 16-Bit
(CD)
DSD64 (SACD)
USB: 44.1kHz to 384kHz, 32-Bit
DSD64, DSD128, DSD256,
DXD352.8kHz, DXD384kHz
Digital Inputs
Coaxial: 0.5V p-p/75 ohms
Optical: -15dbm to -21dbm (TOS Link)
MCT: 0.5V p-p/75 ohms
USB: USB Type B Connector
Power Amplifier Specifications
Power Output
Minimum sine wave continuous average power output
(PCM)
per channel, with both channels operating is:
300 watts into 2 ohm load
300 watts into 4 ohm load
300 watts into 8 ohm load
Output Load Impedance
2, 4 or 8 ohms
(PCM)
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
Intermodulation Distortion
0.005% maximum, if the instantaneous peak power
output does not exceed twice the rated power output
for any combination of frequencies from 20Hz to
20,000Hz.
Dynamic Headroom
1.8dB
Wide Band Damping Factor
Greater than 40
Power Guard
Less than 2% THD with up to 16dB overdrive at
1,000Hz
Frequency Response
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3.0dB from 10Hz to 100,000Hz
MA9000 Preamplifier, Digital Audio and Power Amplifier Specifications
Input Sensitivity (for rated output)
1.7 Volts
Signal To Noise Ratio (A-Weighted)
114dB below rated outpu)
Input Impedance
22,000 ohms
Maximum Input Signal
Power Amplifier In, 16V
Voltage Gain
29dB, 8 Ohms
26dB, 4 Ohms
23dB, 2 Ohms
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