Pair Of Vintage McIntosh MC-30 Tube Power Amplifiers
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Current Price: 102.50
Current Bids: 6
Click here to purchase Pair Of Vintage McIntosh MC-30 Tube Power Amplifiers on eBay!
This auction if for a pair of vintage McIntosh MC-30 tube type power amplifiers with original instruction manuals. I have owned these amps since the early 70's. Prior to that they were owned by my cousin who bought them new in the early 60's. I paired the amps with a McIntosh C-20 preamp which I recently sold. Now I need to sell the MC-30s. As far as I know these amps have all original parts including capacitors, tubes, and resistors. The only part that doesn't look original is one internal cap that doesn't seem to match the others. These amps have been stored for the past few years in an indoor, dry, temperature controlled place. They have been used for most of their close to 50 year life and have given excellent service. As with any piece of electronics that is almost 50 years old, these amps show some cosmetic imperfections. All of the lettering on top next to the tubes and on the input/output side seems to be perfect. The large attached metal McIntosh logo on the side is intact on both amps and looks good.There is a bit of corrosion and pitting on the chrome that doesn't really show up in the photos. The sides and edges show more of the corrosion than the top. Looking down on the tubes, the top show slight pitting of the chrome.At a distance and in the pictures, the amps look great. if you're looking for a pair of excellent vintage amps to have restored or do yourself then these would make good candidates.I have not found a need to do any restoration as they seem to work fine.To me, keeping them original made more sense than trying to make them sonically perfect. Frankly, these 50 year old Macs still sound better than any of my later model solid state stereo gear! When I decided to sell my McIntosh gear I hooked up the MC-30s and detected no hums or buzzes and was able to get good sounding audio out of them.If I had the space I would have liked to hook them up and use them again, however, I don't and they're too nice and too valuable to let sit around anymore. Someone who appreciates their quality should get use out of them.The only testing I was able to do was hook them up to speakers and a preamp and play music through them. Other than that, they have not been tested and therefore will not be warranted. You buy them, they are yours. I will ship anywhere in the continental USA only. If you want me to ship internationally, please do not bid. Even domestic shipping will not be cheap as these amps are quite heavy. Both will be boxed separately and well packed. Tubes will be removed and packed separately for their protection.I estimate about $100.00 each to ship to most places in US. I only charge for actual shipping costs and usually use USPS unless you specify different and are willing to pay the extra cost.Please feel free to email me if you have any questions.ORIGINAL ELECTRICAL AND MECHANICAL SPECIFICATIONS (from the MC-30 instruction manual)Specifications for the McIntosh Model MC-30 Audio AmplifierPower Supply 117/125 volts, 50/60 cycles Power Consumption 135 watts at 30 watts outputPower Output 105 watts at zero signal output,30 watts continuousInput level Input #1 (pin jack and screw terminals and pin 5 of pre-amp socket) .5 volts to 30 volts, with gain control Input #2 (pin 2 of pre-amp socket) 2. 5 volts, (For use with McIntosh pre-amplifier equipment)Frequency Range 20 to 30, 000 cycles ± .1 db at 30 watts output 15 to 50,000 cycles ± .5 db at 30 watts output 10 to 100.000 cycles ± 1 db at 15 watts outputHarmonic Distortion Less than 1/3% at 30 watts output or less, 20 to 20, 000 cyclesIntermodulation Distortion Less than 1/2% if instantaneous peak power is below 60 watts for any combination of frequencies 20 to 20, 000 cyclesImpulse Distortion NegligibleNoise and Hum Level 90 db or more below rated outputDamping Factor 12 or better for 4, 8 and 16 ohm output, 16 for 600 ohmsInput Impedance 0. 5 meg for 0. 5 volt input and 0. 13 meg for 2. 5 volt input. 20 cycles to 40 KcOutput Impedance 4, 8, 16. 166 (70. 7 volts) and 600 ohms (600 ohm is balanced to ground)Phase Shift 20 cycles 3° 20, 000 cycles 9°Tube Complement Pre-Amp: 12AX7, Phase Inverter: 12AU7, Voltage Amp: 12 BH7, Driver: 12AX7, Output: 2--6L6 GC/1614, Rectifier: 5U4-GAAuxiliary Equipment Designed to power C-8 and other McIntosh Pre-Amplifiersconnection ("Pre-Amp input" receptacle)Size 13" x 8" x 8" high, chassis type construction Weight 30. 5 pound, netFinish Chrome and Black
Click here to purchase Pair Of Vintage McIntosh MC-30 Tube Power Amplifiers on eBay!
This auction is valid until 2010-12-03T21:54:00.000Z
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