McIntosh MC-2500 Stereo Amplifier 500w x2 Vintage Classic looks and works great!
500 watts minimum sine wave continuous average power output, per channel, both channels operating into 1 ohm, 2 ohms, 4 ohms, or 8 ohms load impedance, which is: 22.4 volts RMS across 1 ohm31.6 volts RMS across 2 ohms44.7 volts RMS across 4 ohms 63.2 volts RMS across 8 ohms MONO1000 watts minimum sine wave continuous average power output into 0.5 ohm, 1 ohm, 2 ohms, 4 ohms, 8ohms, or 16 ohms load impedance, which is: 22.4 volts RMS across 0.5 ohm 31.6 volts RMS across 1 ohm 44.7 volts RMS across 2 ohms 63.2 volts RMS across 4 ohms89.4 volts RMS across 8 ohms126.5 volts RMS across 16 ohms
OUTPUT LOAD IMPEDANCESTEREO
1 ohm, 2 ohms, 4 ohms, and 8 ohms; separate terminals are provided for each output.MONO-PARALLEL0.5 ohm, 1 ohm, 2 ohms, and 4 ohms; obtained by connecting in parallel the appropriate terminals of both channels.MONO-BRIDGED2 ohms, 4 ohms, 8 ohms, or 16 ohms; obtained by connecting to the output terminals of both channels. The bridged output is balanced to ground. Neither side is grounded.
RATED POWER BAND
20 Hz to 20,000 Hz
TOTAL HARMONIC DISTORTIONSTEREO
0.02% maximum harmonic distortion at any powerlevel from 250 milliwatts to 500 watts per channelfrom 20 Hz to 20,000 Hz, both channels operating.MONO0.02% maximum harmonic distortion at any powerlevel from 250 milliwatts to 1000 watts from 20 Hz to20,000 Hz
0.02% maximum if instantaneous peak power output is 1000 watts or less per channel with both channels operating for any combination of frequencies,20 Hz to 20,000 Hz.MONO0.02% maximum if instantaneous peak power output is 2000 watts or less for any combination of frequencies, 20 Hz to 20,000 Hz.
FREQUENCY RESPONSE (at one watt output)20 Hz to 20,000 Hz +0 -0.25 dB.10 Hz to 100,000 Hz + 0.25 – 1 dB.NOISE AND HUM95 dB below rated output.
RATINGSDAMPING FACTORGreater than 30INPUT IMPEDANCE50,000 ohms.
INPUT SENSITIVITYSwitchable: 0.75 volt or 2.5 volts—Level control provided for higher input voltages.POWER GUARDTHD not to exceed 2% with up to 20 dB overdrive at 1kHz.
GENERAL INFORMATIONPOWER REQUIREMENTS120 Volts 50/60 Hz 0.7 to 22 amps., 15 amps
91 silicon transistors35 silicon rectifiers and diodes6 integrated circuits
MECHANICAL INFORMATION SIZE Front panel measures 19 inches wide (48.26 cm) by10½ inches high (26.67 cm). Chassis measures 17 inches wide (43.18 cm) by 10 inches high (25.4 cm) by17 inches deep (43.18 cm), including connectors. Clearance in front of mounting panel including knobs 2 inches (5.08 cm) FINISH Front panel is anodized stainless . Chassis is stainless. MOUNTING Standard 19″ (48.26 cm) rack mounting WEIGHT 129 pounds (58.5 kg) net