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mc250

  1. C

    MC250 3v Voltage Spikes One Channel

    Hey all, I had an MC250 brought to me with transformer buzz and severe hum in both channels. I found the 500/200uf multi section filter leaking and after replacing that both buzz and hum are gone. However; I am still getting a nasty voltage spike of 3v dc in the left channel on power on and...
    • CaseyWKC
    • Thread
    • amplifier filter caps mc250 mcintosh mcintosh 250 mcintosh 2500 multi film section caps solid state
    • Replies: 18
    • Forum: McIntosh Audio
  2. James Cox

    Early Mcintosh MC250 restoration

    Hi everyone! I recently found a great deal on an MC250 poweramp with an MX110z preamp. My initial plan was to restore the MX110z first but unfortunately it was very badly damaged in shipping (broken glass, broken tip of the power knob, broken panloc button, etc) so I've decided to start with the...
  3. C

    Puzzling issue with c1963 MC250 distortion

    I have a much loved system that I inherited from my father: Mcintosh MC250 amp MX 112 preamp/tuner Bozak B400a loudspeakers All purchased in 1963 Several months ago, the system developed an issue with the left channel, a muffled, distorted, crackly sound. I swapped speakers L-R, and the...
  4. M

    MC250 burnout

    I have had a McIntosh MC250 for years and it worked beautifully until it went up in smoke several years ago. I have finally gotten around to see what was burned out -- and I have to say I'm surprised at the damage. The right channel has lost all transistors (except one) and many resistors are...
  5. Alfmonster

    Mac4100 compared to MC2505/MX110z

    I’ve been recently obsessing over the MC2505/250 for one reason or another. For those who have heard both - I’ve been very curious to know how restored to spec Mac4100 would compare to a restored to spec MC2505 or MC250 paired with a MX110z. Is there a difference between the sound quality by...
  6. Stephen Beck

    Just bought a vintage MC250

    ...And honestly, I can't believe how good it sounds. It's my second McIntosh piece... Found it on eBay one night and found myself bidding. It's REALLY clean (aesthetically). I didn't have a ton of expectation of it sounding as good as it does - was just hoping it would be a good-sounding...
  7. goldswimmerb

    McIntosh 250 buzzing/oscillating

    Hey guys, so I have an MC250 on my bench that emits a terrible buzzing sound out of one channel. It was brought to me as it allegedly had bad Capacitors, so I went through and Recapped it to no improvement. After the recap I noticed that once channel would occasionally oscillate and had what...
  8. 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...
  9. George Jett

    McIntosh MC250 Amp 14L98 Schematics needed (Pictures of inside for reference)

    I'm in search for the Schematic from this early production MC250 Serial 14L98 right channel board has 2 blown transistors and a burnt resister from quick inspection... I have to give it a second look but would like to have a schematic to reference parts.. I took pictures so If someone ever...
  10. Two Steps

    I broke my cast MC250 emblem - how to remove

    Hey all! Sooo...my MC250 emblem was bent and I tried to bend it back - and it broke. Awesome. To make matters more painful, the guy who makes repros (AArtifacs or something), doesn't make one for the 250. So my question is: How do you remove the emblem? Is it wedged in or clipped or what...
    • Two Steps
    • Thread
    • cast emblem mc250 mcintosh repair replacement
    • Replies: 20
    • Forum: McIntosh Audio
  11. Two Steps

    Marantz 2230 + MC250 or 1700 receiver

    Hey all, I am going to attempt to get into the McIntosh world soon and am looking for some wisdom. I currently run a refurbished Marantz 2230 as my daily driver in a larger sized living room. I don't need crazy power as I use some mint Klipsch Quartets. I have narrowed things down to an...
  12. J

    Yikes...MC250 left channel is suddenly distorting, going in and out...

    Well, after 6+ years without problem, my MC250 is suddenly misbehaving. I am getting distortion out of the left channel, the sound is dropping in and out, the volume going loud then soft. I thought it was the preamp volume control but I have swapped around the Preamp inputs, tried a different...
  13. spacecowboy

    right channel buzzzz. MC250 and C28

    I recently bought a MC250 amplifier and C28 pre from an estate sale and it had been working great up to a week ago. The only repairs it needed was some deoxit in the balance pot and volume pot, but with that done I began to hear a buzz coming from the right channel. It is only in the phono 1...
  14. My present McIntosh amplifier!

    My present McIntosh amplifier!

    Was able to purchase a great vintage 1973 McIntosh MC250 power amp in mint condition. This is a perfect combination of 50 watts per channel driving my efficient horn-loaded Cornwalls. A single pair of Cardas QuadLink-5C 1 meter interconnects are used between the MC250 and the AMC CD8b...
    • jt1stcav
    • Media item
    • mc250 mcintosh
    • Comments: 1
    • Category: McIntosh Gallery
  15. MC250

    MC250

    I like it
    • WhiteSE
    • Media item
    • autoformers mc250 mcintosh
    • Comments: 0
    • Category: Member's Component
  16. McIntosh MC250

    McIntosh MC250

    My new baby!
    • WhiteSE
    • Media item
    • autoformers mc250 mcintosh
    • Comments: 0
    • Category: Member Galleries
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