• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

yamaha c-4

  1. O

    Yamaha C-4 pre-amp help

    Hello all, I acquired a yamaha C-4, M-4, and T-1 tuner combo at an estate sale. I'm very excited about it. The Yamaha C-4 pre-amp has no sound out but the headphone channel works fine. I understand that the likley culprit is that TR621 is not closing the RY301 relay. I have read many of...
  2. H

    Yamaha C4 just lost one channel

    Hello Audiokarma friends. My Yamaha C4 has suddenly stopped outputting a signal through the right channel to my Yamaha P-2200 ( no signal whatsoever whether on Aux or Phono, and have tested the power amp with my DAC directly connected and both power amp channels worked fine.) Unfortunately I’m...
  3. Ftlbs

    Yamaha C-4 vs C-6

    I have both a Yamaha C-4 and a C-6. Other than the parametric function of the 6, I honestly don't see or hear a difference. The 4 seems much more popular and expensive and I'm curious as to opinions on why. I'm currently using my C-4 with my MX-1000 which sounds amazing. I also have a C-80 and...
  4. H

    Yamaha C-4. Capacitor types on the main board.

    Hello.. Does anyone have a list (BOM?) for replacement of capacitor types ('low ESR,' or 'good for power supply' designations is what I'm really after) on the Yamaha C-4’s main board? (The ‘Function C Board NA 07149.’) Could probably buy all Nichicon FG or Panasonic FC but would be grateful...
    • Hifibythekg
    • Thread
    • c-4 c-4 preamp capacitor nichicon capacitor range nichicon fine gold nichicon muse panasonic yamaha yamaha c-4
    • Replies: 33
    • Forum: Yamaha
  5. H

    Yamaha C4 preamp fault. Hum. Phono switches.

    Have done a lot of work on this preamp and am starting a fresh thread because several faulty components have already been replaced or repaired and am hoping it may now be much easier to isolate and identify the problem. The issue: Hum is present on all inputs. -Playing vinyl on Phono 1 and 2...
    • Hifibythekg
    • Thread
    • earth ground hum hum noise preamp noise preamp yamaha yamaha c-4
    • Replies: 116
    • Forum: Yamaha
  6. H

    Ground hum, Yamaha C4

    Have nearly tracked down the source of a constant loud hum. Think it’s the Phono MC input.. So, am wondering what should I especially check in the area of the Phono MC RCA inputs and pcb? Some background: Inserting a shorting plug into the MC Phono inputs has a modest effect on the volume...
    • Hifibythekg
    • Thread
    • earth ground hum ground issue yamaha yamaha c-4
    • Replies: 36
    • Forum: Yamaha
  7. H

    Yamaha C-4 preamp hum.

    This amp appears to be working well in all regards except that there is a significant hum when Phono is selected. The hum also comes through substantially on Aux and Tuner. Hum appears to be stronger through the left channel. Hum is lessened when ’Tone Bypass’ is selected, but...
    • Hifibythekg
    • Thread
    • c-4 grounding hum yamaha yamaha c-4
    • Replies: 12
    • Forum: Yamaha
  8. H

    Four devices, 4 places to adjust volume - which to prioritise?

    My set up has four locations at which volume can be adjusted. In theory, which devices should have their outputs used to maximum, and which to the minimum? Not seeking a loud level of sound, there are neighbours, just the best possible sound quality. 1- Sony Bravia television. Tidal...
    • Hifibythekg
    • Thread
    • celestion 66 chord hugo ditton 66 optical audio sound quality usb audio yamaha yamaha c-4 yamaha p2200
    • Replies: 19
    • Forum: Solid State
  9. H

    Yamaha C4 vs C1000x etc, best preamp?

    Looking to upgrade my amplification. Recapped a CR1020 and love it’s sound in my second system. Consequently, in my main system I’m now thinking of getting the best sounding Yamaha preamp I can. So C4, C2a, or CX1000, or other? Happy to do recapping. Also, what’s the best Yamaha power amp to...
    • Hifibythekg
    • Thread
    • c1000x celestion 66 chord hugo yamaha yamaha c-4 yamaha cx1000 yamahab2
    • Replies: 2
    • Forum: Solid State
  10. Cergei

    Yamaha C-4 | Proper Transistor Replacements

    This unit had some issues such as randomly after some time of being working began to distort, and gradually being powered down. I changed all those VD1212 by pairs of 1N4148. After recapping this unit I bought 2nd hand in Argentina in 1997, I checked some of the transistors and I am quite sure...
    • Cergei
    • Thread
    • second hand transistor equivalent yamaha c-4
    • Replies: 31
    • Forum: Yamaha
  11. B

    Yamaha C-4 and MC cartridge

    Hi, This is a question for anybody, but @avionic might have particular insight, seeing as he recapped and serviced my C-4. I'm getting an Ania MC on a Rega Planar 6. The recommended load is 100 Ohms. The MC input impedance of the C-4 is 50 Ohms according to the manual. What can I expect in...
  12. plschles

    Yamaha C-4 Preamplifer Phono Assistance

    Using a Denon 301 MC cartridge and wanted to know what settings to use. I see that there is a phono 1 2 cartridge load buttons. What are they for? Recommended settings? Using with a Yamaha B-2. Thx.
  13. plschles

    Yamaha C-4 Preamplifier Recap

    Just bought a used Yamaha C-4 Preamplifier. Sounds great with my Yamaha MX-2 Power amp. Which area should I recap to get the biggest bang for the buck sound-wise? Anyone have a parts list for ordering purposes? Thanks.
  14. m3gunner

    Any leads on parts for a C-4

    Hi all, I've recently gotten a C-4 that has no feet... and I have no idea what feet are appropriate for this unit. Any ideas or leads would be appreciated. thanks, Jamie
    • m3gunner
    • Thread
    • feet yamaha c-4 yamaha c4
    • Replies: 2
    • Forum: Yamaha
Back
Top Bottom