McIntosh MC-2300 Audiophile Power Amplifier MC2300 Amp For Sale


McIntosh MC-2300 Audiophile Power Amplifier MC2300 Amp


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McIntosh MC-2300 Audiophile Power Amplifier MC2300 Amp :
$1,835

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McIntosh MC-2300 Audiophile Power Amplifier MC2300 Amp N Fully Serviced to Factory Specs!!! MUST SEE!


    Cool Operation To achieve long trouble-free life in an amplifier it is essential to have cool operation. As little as one degree (centrigrade) rise in temperature can reduce the operating life of the amplifier 10%. McIntosh has extended the life of its amplifiers by engineering for cool operation. McIntosh cool operation requires a combination of careful design of the output circuit, containing the output circuit in a mechanical housing that permits the use of generous sized heat sinks to provide great heat dissipation capability along with chassis construction that permits adequate fan driven ventilation, then correctly matching the cool operating output circuit to the loudspeakers with a McIntosh designed and manufactured autotransformer.

  • McIntosh Autoformer The McIntosh autotransformer is a silent giant in insuring better performance and protection. I t s use provides many unseen benefits. First, it is the ideal method of coupling the output circuit to the loudspeakers which are the load into which the output of the amplifier is fed. Frequently the loudspeaker can compromise amplifier performance by speaker impedance variations with frequency or by multiple speakers connected to the amplifier. Because transistors, used in amplifier output circuits are designed to work into an optimum low impedance load, the use of the McIntosh autotransformer matches these requirements best. Without the McIntosh autotransformer, variables, such as these, can cause output transistor heating, restricted performance and then circuit failure. A second benefit of the McIntosh autotransformer is the protection provided in the event of a failure in the output circuit. Should there be any direct current component in the output circuit, the autotransformer conducts any speaker damaging DC directly to ground. Your expensive loudspeakers are protected from this potentially damaging circumstance. A third benefit of the McIntosh autotransformer, which not only provides the output transistors an ideal load and is the path that conducts any DC away from the loudspeaker, also contributes a flexibility in loudspeaker connecting capability not otherwise possible. For safe operation ordinary amplifier output circuits are usually restricted to operate into 4 or 8ohms. In stereo, the McIntosh autotransformer perfectly matches the output circuit to 0.5, 1, 2, 4, 8 and 16 ohms. In mono, (the stereo can be interconnected for mono operation while delivering twice the power) the autotransformers matching to 0.25, 0.5, 1, 2, 4 and 8 ohms.

  • The McIntosh Sentry Monitoring circuit The McIntosh Sentry Monitoring circuit constantly monitors the output signal. As long as the amplifier is asked to operate within its operating limits, the Sentry Monitoring circuit has no effect upon the program output. If the amplifier is asked to exceed its design maximum, or has an accidental short circuit across the amplifier output or has a severe impedance mismatch, the Sentry Monitoring Circuit operates to control the signal to the output transistors to protect them from failure.

  • Dual Power Level Meters for each channel a highly accurate peak meter is provided. Because of unique circuitry these meters are able to provided instantaneous and precise changes in musical program with an accuracy rate of over 98%. Additionally a four position (off, -20, -10, 0) meter range switch is provided to correspond with gain level.

  • Individual Left & Right Gain Controls Allows you to adjust the volume of each channel individually

  • And Much More!


Actual MC2300 from sale featured in video
(MX117 available in my other sales)
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Power Output Stereo
300 watts minimum sine wave continuous average power output, per channel, both channels operating into 0.5 ohm, 1 ohm, 2 ohms, 4 ohms, 8 ohms, or 16 ohms load impedance, which is:
~12.2 volts RMS across 0.5 ohm
~17.3 volts RMS across 1 ohm
~24.5 volts RMS across 2 ohms
~34.6 volts RMS across 4 ohms
~49.0 volts RMS across 8 ohms
~69.3 volts RMS across 16 ohms
Mono
600 watts minimum sine wave continuous average power output into 0.25 ohm, 0.50 ohm, 1 ohm, 2 ohms, 4 ohms, or 8 ohms load impedance, which is:
~12.2 volts RMS across 0.25 ohm
~17.3 volts RMS across 0.5 ohm
~24.5 volts RMS across 1 ohm
~34.6 volts RMS across 2 ohms
~49.0 volts RMS across 4 ohms
~69.3 volts RMS across 8 ohms
Output Load Impedance Stereo: 0.5 ohm, 1 ohm, 2 ohms, 4 ohms, 8 ohms, 16 ohms; separate terminals are provided for each output;
Mono: 0.25 ohm, 0.5 ohm, 1 ohm, 2 ohms, 4 ohms and 8 ohms; separate terminals are provided for each output Rated Power Band 20 Hz to 20,000 Hz Total Harmonic Distortion Stereo: 0.25% maximum harmonic distortion at any power level from 250 milliwatts to 300 watts per channel from 20 Hz to 20,000 Hz, both channels operating
Mono:0.25% maximum harmonic distortion at any power level from 250 milliwatts to 600 watts from 20 Hz to 20,000 Hz
Intermodulation Distortion Stereo:0.25% if instantaneous peak power is 600 watts or less per channel with both channels operating for any combination of frequencies 20 Hz to 20,000 Hz
Mono: 0.25% if instantaneous peak power is 1200 watts or less for any combination of frequencies 20 Hz to 20,000 Hz Frequency Response
(at one watt output) Stereo:
20 Hz to 20,000 Hz, +0 - 0.5 dB; 1 , 4, 8 , or 16 ohms
20 Hz to 20,000 Hz, +0 - 1.0 dB; 0.5 or 2 ohms
12 Hz to 35,000 Hz, +0 - 1.5 dB
Mono:
20 Hz to 20.000 Hz, +0 - 0.5 dB; 0.5 , 2 , 4 , or 8 ohms
20 Hz to 20,000 Hz, +0 - 1.0 dB; 0 .2 5 or 1 .0 ohms
12 Hz to 35,000 Hz, +0 - 1.5 dB Noise & Hum 90 dB below rated output Output Power Monitor Meter Meter is calibrated to read +3.0 dB when amplifier produces 300 watts. Meter range switch is provided to increase meter sensitivity by 10 dB or 20 dB. Calibration accuracy at 0 dB reading is +/-2.0% at all frequencies; meter range accuracy is +/-5.0% Output Voltages 25 volts, stereo and mono; 70 volts, stereo and mono for distribution lines Damping Factor 27 at 0.5 ohm output, 50 at 1 ohm output, 29 at 2 ohms output, 21 at 4 ohms output, 14 at 3 ohms output Input Impedance 200,000 ohms Input Sensitivity 0.5 volt. Level control provided for higher input voltage Power Requirements 120 volts, 50/60 Hz, 160 watts at zero signal output, 1400 watts at rated output Semiconductor Complement 46 silicon transistors 1 / silicon rectifiers and diodes Dimensions 19” W x 10 ½” H x 19 ¼” D Weight 128 lbs unpacked



Amplifier has been gone through by a highly regarded factory authorized McIntosh tech. All components that did not test within specification were replaced. This included 24 output transistors and emitter resistors (all replaced with the model/make as originals), as well as some other passive components. All lamps were replaced with NOS where needed, all switches and controls cleaned, meters were calibrated, and entire unit was cleaned. Unit was then tested on an Audio Precision ATS-1 Test Set and meets the original manufacturer’s specifications for power output and distortion levels. I personally listened of this amp for several hours and it is performing flawlessly. Both channels play strong and loud with no hum or distortion. Looking it over closely there are some minor cosmetic blemishes, a few minor scratches variously located. There are some minor mounting marks on the rack mount holes and some scratches on the handles. .

This is a sale so it will go to the highest buyer. I specialize in shipping large delicate items and I know what it will take to pack this right. All you have to pay towards shipping, insurance, packaging material, and expert packing is $89.75 to anywhere in the continental U.S. I will also ship this unit World Wide and will only charge the Actual Shipping cost.
Please note: the item pictured is guaranteed to be the actual item you will receive. None of my pictures are taken off other peoples pages or web sites, so offer with confidence - what you see is what you get! PayPal and any other approved payments gladly accepted! (please email for details) Never a handling fee, buyer pays actual shipping as stated above.

International buyers welcome.

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