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Thread: To replace or repair Mc7300?
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May 10, 2015, 11:21 AM #1Member
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To replace or repair Mc7300?
Got a McIntosh MC7300 amp used off ebay(cheap). It keeps shutting down. Been running a little warm too. It came from the N.J. coast. Has a musty smell to it. I have it running off output 2 of my McIntosh MAC6700 receiver. With MQ101 Equalizer in between output 2 & 7300 amp. To use my ML 1 speakers. I'm using output one of receiver to run my B & W CDM 7 speakers. Should I buy the new McIntosh MC152 or try to find a good MC352 or MC 402 from Audio Classics ? I had the 7300 fixed once at a McIntosh dealer. Don't feel like taking a chance on another repair. Thanks for any suggestions on this matter.
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May 10, 2015, 11:25 AM #2Super Moderator
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Re: To replace or repair Mc7300?
Welcome to the forum surrounded by sound, thank you for joining.
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May 10, 2015, 11:48 AM #3Senior Member
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Re: To replace or repair Mc7300?
surrounded by sound.......The McIntosh MC7300 power amplifier was manufactured between 1991 and 1995. At best your amp is at least 20 years old. There were two versions of the MC7300. The earliest version had Panloc with the Panloc buttons on the faceplate. The later version was made without the Panloc feature. If your amplifier has the Panloc buttons on the face it is probably 23 or 24 years old. My suspicion is the power supply capacitors. Considering the age of the amplifier it is time to have the power supply caps replaced. Since the amp is running warm and shutting down it may be that the voltage rails are not providing the proper voltages to the various sections of the amp. Fortunately the MC7300 has the McIntosh Sentry Monitor circuit and thermal shutdown circuit to monitor voltages at the output, as well as the temperature of the output transistors. If the amp is shutting itself down, there is a problem that needs attention. I would not continue to use the amplifier until it has been serviced.
Originally Posted by surrounded by sound
The MC7300 delivers 300 watts per channel. If you are thinking of replacing it with a more modern McIntosh amplifier, the MC352 would be my recommendation. I owned and enjoyed the MC352 for years. It is a powerhouse and sounds very clean.Dan
STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital coax, Sonos Connect, Stillpoints Ultra SS & Ultra Mini, PurePower 2000, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Sonus faber Amati Anniversario
LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205 Signal Sleuth, Sonos Connect, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Sony DAT 60ES, Nakamichi BX-300, Micro Seiki DD40 w/m505A tonearm, Ortofon Cadenza Blue, PS Audio P10, Furutech Flux 50, Stillpoints Ultra Mini, PMC EB1i, JL Audio f113
VINTAGE - McIntosh 4300V, McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, JBL 4312A
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May 10, 2015, 11:49 AM #4Audioshark
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Re: To replace or repair Mc7300?
Welcome to AS surrounded by sound. Did you get Audio Classics to take a look at it?
My Systems: http://www.audioshark.org/showthread...481#post158481
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May 10, 2015, 12:22 PM #5Member
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Re: To replace or repair Mc7300?
Mike I did not have Audio Classics look at it. I live in Metro Detroit. If it wasn't for Mom's poor health. And my bad back.I'd ship it to them. The original box looks like it went through the battle of Stalingrad. Wonder if Audio Classics could send me a good shipping box? I used to deliver new cars to upstate N.Y.. I could drive to Vestal in my sleep. I'm leaning towards the new MC150.
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May 11, 2015, 10:30 AM #6Member
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Re: To replace or repair Mc7300?
Double D, I was quoted a price of $6300.00 for a new MC302 out the door. Includes delivery & set up. To replace my MC7300 with panloc. Does that sound good to you ?
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July 17, 2015, 12:04 PM #7Member
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Re: To replace or repair Mc7300?
Double D......Got the MC7300 repaired free of charge. From a top McIntosh dealer in Ann Arbor. Hooked it back up to my ML 1's for my secondary system. Don't know what all they did to repair the amp. But sounds good. The new Transparent RCA cables helped too.
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July 17, 2015, 12:11 PM #8Senior Member
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Re: To replace or repair Mc7300?
SBS.......I apologize for not responding to your question about the MC302. I missed that post entirely until today. I think you were wise to have the MC7300 repaired. Not only are you back in business, you still have some jingle in your pocket. Originally Posted by surrounded by sound
Dan
STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital coax, Sonos Connect, Stillpoints Ultra SS & Ultra Mini, PurePower 2000, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Sonus faber Amati Anniversario
LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205 Signal Sleuth, Sonos Connect, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Sony DAT 60ES, Nakamichi BX-300, Micro Seiki DD40 w/m505A tonearm, Ortofon Cadenza Blue, PS Audio P10, Furutech Flux 50, Stillpoints Ultra Mini, PMC EB1i, JL Audio f113
VINTAGE - McIntosh 4300V, McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, JBL 4312A
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May 22, 2016, 01:43 PM #9Member
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Re: To replace or repair Mc7300?
Double -D...The Mac 7300 still going strong. Now to take the MVP 891 back to dealer again. It needs some more work. Amazing how the older Mac equipment seems to have better quality.
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
We are as crazy about this hobby as you are! So come on in and join us! Audioshark.org the Friendliest Audio Forum!
Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
Sincerely,
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