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yahama amplifier

  1. badspell68

    Bose 301s Replaced with Polk ES20 - Thoughts and Input on Change?

    After years of using Bose 301s with a Yamaha CR-2040 (use it for Music and and Movies). What I noticed - The Bose's filled the rooms completely with sound, but while watching films I had a hard time understanding words, but when putting on high quality headphones I could hear everything in...
    • badspell68
    • Thread
    • bose cr-2040 yahama amplifier
    • Replies: 13
    • Forum: Speakers
  2. Yamaha5000

    Yamaha CIS Connectors

    Seeking a supplier and part number for CIS connector replacement
    • Yamaha5000
    • Thread
    • cis connector yahama amplifier
    • Replies: 0
    • Forum: Yamaha
  3. Yamaha5000

    Yamaha CA-1000/CA1000II Power Supply and Protection Circuit Diagnostics, & Lower SNR values with the QA403

    With the DVM + lead on the Base of TR708 and the - lead on E: On the V scale I read 15.32vdc and the relay is off On the mv scale the relay coil becomes active I can use the V and mv scale selector to act like a switch to turn the relay on and off. FYI the Emitter to E measures 15.84vdc...
    • Yamaha5000
    • Thread
    • 60 cycle hum crosstalk internal hookup wire power supply power supply caps protection circuit qa403 snr yahama amplifier yamaha ca-1000
    • Replies: 358
    • Forum: Yamaha
  4. H

    Yamaha A-1 amplifier thump on power off.

    Hi, I have a Yamaha A-1 that I’ve been working on and is now sounding great and has stable readings for Drive Circuit DC Offset, Idling Current, Power Supply voltage as per the manual. But, powering off just now by pressing the power button on the amp led to a substantial thump through the...
    • Hifibythekg
    • Thread
    • a-1 power supply thump thump in speaker yahama amplifier
    • Replies: 89
    • Forum: Yamaha
  5. Super Noob

    Project: Yamaha CA-2010

    Here is my latest expedition with vintage stereo. Must admit that I am sucker for large WPC vintage gear by the usual suspects: Pioneer, Sansui, Marantz, Kenwood, Fisher... and many others. The recent rebuild of the CR-620 & CR-820 have enhanced my focus on Yamaha. The CA-2010 seems to...
    • Super Noob
    • Thread
    • ca 2010 ca-2010 ca-2010 recap ca-2010 restoration yahama amplifier yamaha rebuild yamaha recap
    • Replies: 71
    • Forum: Yamaha
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