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mcintosh

  1. charne@sprin

    Made a University student very happy today

    Sold my PM7005 amp to a happy U of Wisconsin student. Craigslist comes through! It was replaced by a MAC6700 in my home system. The Marantz is a high quality 2-channel amp; but when I had a chance to move to the MAC, I took it. I always liked that the Marantz was made in Japan, sounded...
  2. M

    Help request: MA6100 speaker switch and pre out questions

    I recently picked up a nice condition MA 6100 integrated amp that now works well with the following exceptions: 1. Front panel Speaker selector buttons seem to be bypassed as speakers work whether buttons are in our out. Status lights operate as they should - on/out, off/in. Even with the lights...
  3. Alguymcgee

    Retube on a mac ma-5100

    Hey everyone, I was presented with an opportunity to pick up an MA-5100 for relatively cheap, but it's still toward the top of my price range. Just curious, if it needs a retube, what would a reasonable cost be? I k is it varies based on location and bench fees, so I'm just looking for a...
  4. charne@sprin

    Realizing the Potential of Chorus II speakers

    I've had a pair of Klipsch Chorus II speakers since 1995. They were purchased new from a shop in Beverly Hills, CA and have followed me around the country ever since. The Klipsch pair replaced four Braun L-1030s, wonderful, themselves. Along the way, the Klipsch pair served as front left and...
  5. cocovinyl176

    Trade MC250 SS for Dynaco st70 Tubes?

    Hello all, I know some of you will be bias in one way or another regarding SS vs Tube, but thought I'd throw this out to the AudioKarma world to gather some thoughts. A trade: Mcintosh MC250 for Dynaco st70 Both units are cosmetically 9/10 with zero rust or pitting Both units are in its...
  6. Lockheed Mar

    Mixed 12AT7 tubes for MC275 MK VI?

    Hi everyone, Des the MC275 can run normal with mixed 12AT7 tubes? I've two MC275 MK VI and recently change 4 pairs of 12AT7 (2 pairs per amp). The problem is I have 3 pairs CV4024 Mullard and 1 pair 12AT7 Brimar. Thank you very much for helping :)
  7. Gcman123

    Wow!!! McIntosh Mac 4200…

    This receiver is great, really nice looking as well; I would say N/Mint condition. :D I Haven’t tried phono yet as I no longer own records, perhaps will get back into records again. My Revox A77 IV sounds so sweet, better than ever. Both AM and FM are awesome as well as CD’s. Only thing that...
  8. cnolanh

    MC2150 cosmetic quirks and questions

    Last year I bought an MC2150 from AudioClassics and it's a terrific amp. This particular one is in good condition but arrived with two small weirdnesses, which I was reminded of recently when I moved the amp: 1. On the rear chassis, the white serial number area is blank. I highly doubt that...
  9. Apritchard

    Using MX-134 Zone B with R649

    I am trying to use Zone B on my MX-134, but am having no success. I have purchased a new (sold as new) R649. My first question is: how does this connect? I have taken it to a Mac dealer and even they were unsure. Is there something in between the R649 and the processor, or do I connect with an...
  10. H

    McIntosh MC60 Circuit Differences / Restoration

    I am recapping a pair of MC60 amps for a friend and the serial numbers are 3XXX and 7XXX there are lots of differences between these two amps. The board layout is completely different and the bias section is different as well. The first amp I replaced the selenium rectifier with silicon and...
  11. ericleehall

    MC7300, what's the best McIntosh Tube PreAmp for it?

    Hi have this Mc7300, paired with a completely restored MX110z, (by Terry DeWick), but I'm just not satisfied with the pairing... Which Blue Dialed McIntosh Tube Pre-Amp would be a good fit? I don't need anything fancy, as I have DAC's already, and phono pres. C2200? Thanks!
  12. B

    McIntosh 4275 Memory Preset Issue

    My 4275 Receiver will not retain station memory presets for more than 24 hours with the receiver off but otherwise plugged in. I suspect a capacitor is at issue as I can't find any batteries referenced in the service manual. Does anyone have any comments/solutions?
  13. R

    Inherited a vintage McIntosh system, seeking advice.

    Hello, this is my first post here. I’m seeking advice on a McIntosh system that I inherited from a family member. It is the following components: -C32 preamp -MC2300 amplifier -XR7 speakers -MQ102 environmental equalizer The components are all in good condition minus a few issues with the...
  14. travellersol

    McIntosh C504 + MC502 vs MA6200

    Currently there are these two used sets available in my place, and their prices are almost the same. I'd like to know the differences in them: McIntosh C504 pre amp & MC502 power amp vs McIntosh MA6200 Integrated Amplifier I intend to drive Spendor SP1/2, JBL L110, and Klipsch KG4 with one of...
  15. M

    MA 5100 Transistors

    Hey everyone, great to be here! My MA5100 has developed a crackle when warm (left channel). Freeze spray pinpoints the fault to Q209 (PNP driver), so the course of action is to replace a few small signal transistors on both channels, as a precautionary measure. All good so far. I have been in...
  16. H

    McIntosh MC60 Power Amp Power Supply Question

    I have noticed that this amp has 80uF of capacitance right after the two 5U4 tubes. Wouldn't this amount of capacitance cause arcing of the rectifiers? Has anyone changed this when replacing the capacitors in this unit? Would it be better to reduce the input capacitance? I plan to replace the...
  17. cocovinyl176

    Mcintosh p153 & p155

    Happy new yr. I have been trying to find information on the McIntosh pre/amp p153 & p155...but have come up empty. Can any of your shed a bit of information regarding the two? much appreciated.
  18. L

    Help Matching Cartridge to SL-1210 MKII and McIntosh 4100

    I need some help trouble shooting a hum problem and finding the right cartridges that will match my system, which consists of a Technics SL-1210 MK2 which is connected to a McIntosh MAC4100 receiver and Axiom Audio M100 Towers. The SL1210 came with a Stanton MP 6800 EL cartridge, but I am...
  19. A

    Help setting up a vintage McIntosh system

    I have a late 60's c-20, MC240, Empire turntable, and two Klipsch R-15m speakers. Could someone let me know where to plug everything into?
  20. grantray

    Question for rewiring the C20's power cable

    A previous owner replaced the original Belden with a Taiwanese cable that needs to go, too. I've got a 16g Qualtek prepped and ready to go, but the schematic doesn't list which terminal should get the live wire. Is there a preference for which terminals should get the hot and neutral lines...
  21. Black.Audio.Co

    Sansui BA 3000 problems after restoration / recapping

    Dear Friends, I need help and advise on my BA 3000. I purchased this two years ago and fully recapped all the boards (with Elna Silmic ii) and reflowed the solder (audio note) on all the boards. Ran trouble free for six months then the transistors blew on the left channel. Replaced the Sanken...
  22. A

    McIntosh MX 112 Selector Knob Issue

    Hello everyone, If I am posting in the wrong area I apologize this is my first time in this forum. First, I am a newbie with McIntosh I honestly do not know very much about them. However with that said, a patient of mine was moving and selling his McIntosh MX 112 with the wooden case not the...
  23. H

    McIntosh 40 MC40 Can I use KT88 or 6550?

    McIntosh 40 MC40 Can I use KT88 or 6550? Does anyone know the current capability of the filament winding of the power transformer? Thanks
  24. rs732

    Mcintosh MC30 Prices?

    Sometimes,I see these being sold individually on ebay for affordable prices $750-850 is this a rare occurrence or does that about right for a decent condition mc30? Is a $1500 budget reasonable for a pair of MC 30's?
  25. JPJ

    fell into a crazy tube system but can't keep everything, looking for advice on best way to upgrade

    Kind of a long story and wasn't sure where to post. I'm new to posting on the forum (have used it as a resource plenty) and have always used a low budget setup at home. I've had and really enjoyed an HK 730 paired with kef Carlton iii's. Audio is either coming from my technics 1200 mkII or...
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