• 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

amp

  1. R

    SAE MARK XXXIB distorted channel, then loud buzzing.

    Hey what's going on? so when I play music through the amp the left channel is distorted the right channel is clear. when I moved the amp, both channels went completely distorted and I had to unplug it, loud buzzing through the speakers and buzzing around the bad darlington area. I pulled the...
    • robc23
    • Thread
    • 31b amp darlington help mark repair sae transistor xxxib
    • Replies: 30
    • Forum: Solid State
  2. J

    Peavey PVi 10 value and amp

    Hey there! I'm Jonathan, currently spending a year abroad in Canada working in a thrift store. I love music, especially loud and with good sound quality, I'm just not in touch with the technical sound of it... which is why I'm here. I wanted to upgrade our living room sound system a little bit...
  3. richardg0n

    Why Does 2325 Amp Have Full Voltage Readings W/O PWR Supply?

    I am troubleshooting a possible short on one of the 2325 amps connected to a DBT and only having one amp in the receiver. I have the RCA connected to the amp only. Can someone explain why I can take full voltage readings with my multimeter on the components without the amp power ribbon...
  4. 3.5mmjack

    WHAT AM I DOING??

    Okay so I'm currently running the following setup (follow me here): Echo dot 3rd generation 2018→ aux cable→ Fiio A1→ 2 way headphone splitter (everything from here forward is on both ways)→ 3.5mm to raw wire→DCM KX-6 The Fiio is a great amp, but it doesn't generate enough power (I think, idk...
    • 3.5mmjack
    • Thread
    • alexa amp dcm dcm speakers builds fiio
    • Replies: 1
    • Forum: Speakers
  5. O

    Technics su-vx820 , improving sound ?

    Good evening, I have a Technics SU-VX820 amplifier, which I currently use in power amp direct mode, as it seems to sound the best this way, but I still feel like something is missing. I also own a Nikko TRM 750, but I'm not sure if it needs servicing (changing capacitors, etc.). The speakers I'm...
  6. D

    how to connect subwoofers to this audio setup

    hello i hope im at the right place here but im a bit stuck im planning to buy a schiit gjallarhorn and a pair of pro-ject speaker box 5 s2 to add to my setup but the gjallarhorn only has 2 speaker connections latter down the line i wanna add a subwoofer to the setup but im not sure how to do...
  7. M

    Information assistance for A Technics ST-K806

    Got this amp pre-amp combo, Technics ST-K806 pre-amp and SE-A808 AMP. looking into them the pre-amp is hard to find info or even listed for sale. I do see the amp, however, mine has no power button and most others do that I'm seeing online. Does anyone have info on these at all, have or ever had...
  8. redondo2018

    SAE Mark III / Mark Three meters fixable?

    So I recently got a one-previous-owner silver Mark III (with 2 meters and 4 knobs on the front) that cosmetically and audibly is pretty much as good as can be (all original), with the main issue that the meters seem to be completely dead (obviously any 50 year old piece of gear needs a recap /...
  9. M-Hassel

    Harman Kardon P725 | M770 Technical manual

    Good afternoon, I have a question regarding harman kardon models 725 and 770 for 100v. In the technical manual I could find, there are two versions only for 120v and for multi-voltage. Question, is there a technical manual for the 100v version of the P725 (HK725) and for the M770 (HK770)? If...
    • M-Hassel
    • Thread
    • amp amplifer harman kardon harman kardon 725 harman kardon 770 hk725 hk770 amplifier pre amp preamplifer techical manual
    • Replies: 0
    • Forum: Solid State
  10. Roman68

    I ask for help with the Technics SA DX850 receiver!

    Hallo . I recently purchased a Technics SA DX850 receiver. All functions work, the sound is clear, without distortion. But during operation, the receiver heats up significantly, and the fan does not turn on. Yesterday the receiver worked for about two hours, the radiator was hot, but the fan did...
  11. michaelm101

    Continuous Vintage Failure: Please Recommend New "Modern" Amp

    I still have my old Kenwood KA-5700 I was awarded for straight "A"s in the fifth grade and I have fond recollections of going to the Federated Group and Cal Stereo dreaming about other gear. I've since collected several other amps/receivers of the 1970s era of Japanese crafted stereo gear. BUT...
  12. I

    Recently acquired NAD C270. Recap suggestions/help? Want to extract its full potential.

    Hi everyone. I just bought a NAD c270 on Ebay. Seller says it's in good condition all good blablabla. Will get it here in a few days. I think it'll be necessary to recap the amp, plus maybe other components. Can somebody who has done this in the past share the list of the necessary caps? It's a...
  13. maskof

    Onkyo A-8450?

    Hello friends, I would like to hear your feedback regarding the Onkyo A8450 amplifier. Is it a good choice for peak performance, or should I consider alternative options?
  14. J

    Bookshelf Speaker Stands Necessary?

    Curious what you guys think about whether or not my set up would benefit from some short speaker stands. I have Kef Q350’s sitting on a very sturdy credenza. I also have a small space so very little/no room for tall stands on the side of the credenza. Curious if short desktop stands would...
  15. dswann01

    Marantz SM-7 Problem

    Hoping that some of you guys may be able to help with a recent problem. I have a Marantz SM-7 amp that I use with a Yamaha CA-810 integrated amp as preamp. While listening at very moderate volume this weekend there was a pop thru the speakers and an immediate drop in volume in both channels to...
  16. outrun

    First vintage system

    Hello all, I am currently building my first vintage system out of various parts I managed to acquire locally. I am a complete newbie to all of this, since this is almost my birth year hardware although I do have nostalgia towards these from my child hood. If anyone has any experience any of...
  17. J

    Old Rega Elicit vs new Brio

    Dear all, I'm looking for an integrated amp (to pair with new Rega Planar 3 Exact), and in my budget range I can choose between a new Rega Brio for around 700 euros, or there is someone living near me selling an older Rega Elicit for around the same price (incl. MM preamp) and that is claimed...
  18. Racingh11

    Soundcraftsmen PM860 / PCR800 power-amp restoration

    I bought this amp in rough shape as a project to match my other PM860 beater amp. I should have taken before pictures. The inside was coated in heavy dust that was also oily. And all of the black sheet metal parts had the paint pealing off. I opted to fully disassemble the amp. Ultrasonic...
    • Racingh11
    • Thread
    • amp amplifier bridging amps pcr800 pm840 pm860 soundcraftsmen
    • Replies: 70
    • Forum: Solid State
  19. B

    Need to find VU meters for Marantz 500

    They say fs.. 200uA on the back.
  20. M

    Carvin V3 Hissing Issue

    Hello, I have a Carvin V3 stack. For months now it has a problem where it starts hissing out of nowhere, and it will do this whenever it feels like it. I've opened up the amp and tried fiddling with wires to see if I can get it to stop when it happens, with no luck. The only way I can get it to...
  21. R

    100-200watt Green-faced amps?

    Ok, I admit it, I am a sucker for the look of the green face Altec gear. Does anyone know if there is a 100-200watt version of the 1593B? Or know of a definitive list/site for these models. Just trying to put off Googling every model number/letter combo. Thanks. - Rob
  22. popeco

    Powering a Japanese Amp with a Stepdown + AC Outlet usage

    Apologies if this has been covered already, I tried searching but it's a tricky query. I've been looking at some older / vintage Yamaha amps from Japan, which are 100V / 50-60 Hz. I live in the US, so I understand that to power them here I'd need a 120V > 100V stepdown transformer. Which...
    • popeco
    • Thread
    • 100v 120v amp japanese step down
    • Replies: 3
    • Forum: Solid State
  23. J

    Is the preamp in Sony TA-F555ES any good?

    I use Sony TA-F555ES amp, which I think was once a very good amp, and which I love myself as well. It's time to send it in for some revisions (the wheel to choose between A or B speakers needs to be checked), but there is another issue that I'm not sure I should have the guy look at: the phono...
  24. CrazeeD

    Nikko Alpha 450 noise

    Hi All, having a weird problem with a Nikko Alpha 450 power amp I'm working on. I've posted here before regarding this amp and the suggestions were invaluable. I've re-capped the power supply as 1 of the big filter caps had leaked and wasn't even making contact with the board. The amp sounds...
  25. B

    Polkaudio RTi10 Floor Speakers - Muddy reproduction issues

    Greetings, I own a pair of polkaudio Rti10 floor speakers and been dealing with a lack of crisp highs and some mid-range deficiencies. I have read threads of other Polk owners grumbling about these issues. I could have sworn that there were updated tweeters available that would improve on the...
    • billed1954
    • Thread
    • amp cp-1057f floor speakers integra m-504 onkyo p-308 preamp rti10
    • Replies: 0
    • Forum: Speakers
Back
Top Bottom