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amp

  1. J

    RX-495 Issue

    Hello Everyone, I purchased my RX-495 back in 1997. It has been flawless until 2024 when it would suddenly "click" and turn off, either at low or high volume. It is sensitive to vibration. Something as little as putting my coffee cup on the desk can trigger it to turn off. Sometimes the...
    • James_VA3JPX
    • Thread
    • amp relay relay click rx-495 yamaha
    • Replies: 7
    • Forum: Yamaha
  2. S

    Technics SU-Z990 SVI3105A pinout mapping for TDA7294 mod

    Hi, I was thinking about replacing my original power ic which was faulty with the TDA7294 but dont know where on the board to solder wires to i was looking for pinout of the original SVI3105 power ic. if anyone would know please reply.
  3. scootsity5

    Building a scratch version of Dave Gillespie's 8600 mod

    Hello all, I was told to stop asking questions in the main thread, and instead create my own build thread. So, I am! Here's the deal, a few years ago, we acquired a beat up telefunken console. It was pretty much toast. So, I took out the speakers, turned the turntable drawer into a real...
  4. qui

    Can an amp be fatiguing?

    Hi, I'm fairly new to hifi, so apologies if this is rambly/unclear. My setup: - Polk SDA CRS+ - NAD 7155 or Yamaha RX-385 - Sony PS-2000 w/ Sony VC-8E - MacBook Pro M4 or JVC XL-V282 for digital My first amp was the Yamaha RX-385. I would describe the sound as clean, clear, but lacking...
    • qui
    • Thread
    • amp fatiguing nad 7155 yamaha
    • Replies: 22
    • Forum: Solid State
  5. L

    Fosi Audio DS3 Headphone Amplifier - Personal HandsOn Review

    I’m a guy who loves music, really feels it. I don’t chase gear specs for the sake of it, I just want quality that makes music come alive. Over the past few weeks I’ve been putting the Fosi DS3 through its paces with music, games, measurements, and repeated listening sessions to figure out what...
  6. C

    Hafler P500 help

    Hello all! This is my first post on this forum after a lot of lurking; please let me know if I should make any amendments to the post. I recently came into a Hafler P500 amp which the seller stated had worked fine last he used it a few years ago. Before connecting it to any speakers I did...
  7. B

    Denon PMA-980R channel imbalance.

    Hi. My Denon PMA-980R has an issue with channel imbalance. It's the worst at low volume and gets slightly better when I increase the volume. Someone suggested that it could be a problem with dirty potentiometer. It is a motorized ALPS and I'm not sure whether I can just get a contact cleaner...
  8. N

    Help Troubleshoot Issues With Sony TA-AX390

    Hi AK - This is my first post so please let me know if there's anything missing or if it needs to go in a different section of the forum. I picked up a Sony TA-AX390 integrated stereo amplifier last spring and have had it for a few months now. I got it for a good deal alongside a separate tuner...
    • nsdigirolamo
    • Thread
    • amp amplifier help integrated amp integrated amp help sony sony ta-ax390 ta-ax390
    • Replies: 2
    • Forum: Solid State
  9. B

    Curious hum in my Zenith 5k29 Amplifier (MK2608)

    Hi there! Following up on my past thread here: https://audiokarma.org/forums/index.php?threads/adding-switch-and-line-input-to-zenith-mk2068-console.975293/ My grandparent’s Zenith console is doing well! I ended up going with the switch between the Preamp output and 3.5mm connection for an...
    • bbs71364
    • Thread
    • amp buzz console console amp hum zenith
    • Replies: 1
    • Forum: DIY
  10. G

    Help finding speakers that will work with my amp.

    Hi, I would just like to say I am very new to Stereo/HIFI systems or setups so any help would be much appreciated. I have a Fisher CA-854 amp and two Fisher STV-724 speakers and I want to upgrade the drivers in the actual speaker cabinet. I did do some research and it was recommended I replace...
    • GQuinn0123
    • Thread
    • #speaker amp fisher amp fisher ca854 fisheramp new reccomendations
    • Replies: 14
    • Forum: Speakers
  11. electrotek

    Onkyo A-9130 Volume Increase Causes Protection

    Hi legends! I recently acquired a 5 year old Onkyo A-9130 amp from a first-time owner who found it would cut out (assumably protection circuit) after the volume reached above about 10 o'clock (1/3rd power) if, and only if, music ("input") is playing. However, using headphones does not cause the...
    • electrotek
    • Thread
    • a-9130 amp amplifier onkyo power protection circuit
    • Replies: 0
    • Forum: Solid State
  12. N

    LXI Series 9300, Repair or Replace?

    Hello! I'm new here, nice to meet you all. I'm on a bit of a quest, and for the first time ever, ebay has failed me. TL;DR: Does anyone know where I can purchase an LXI Series 9300 Amp, or of someone who can repair mine? The long story: I have an LXI Series 9300 stereo system, with all the...
  13. D

    Best Amp/Receiver for a Forte IV Home Theater & Stereo Setup

    BLUF - Looking for amp/AVR recommendations for HT setup centered around Fort IVs as main L/R speakers - classic MCM vibe (wood paneling or wood enclosures, silver metal?), current black plastic amps don't fit the look - HT will have 4K projector, apple TV, PS5 (+/- Switch/N64) - May also add on...
    • darth_maul
    • Thread
    • 5.1 and stereo amp amplfier av receiver avr forte iv home theater mid century modern receiver
    • Replies: 12
    • Forum: The Klipsch Korner
  14. michaelm101

    Which Vintage Integrated Amps Have A + B = PARALLEL CONNECTION?

    I have a pair of 1980s GNP speakers that require the satellites to be connected to "A", and the (passive) woofer box (2 separate L & R woofers) to be connected to "B." I've discovered here on AK, that my old Kennys are A+B = SERIES, so I currently have an old Kenny running the satellites, and...
  15. T

    Marantz 7C repair advice - San Francisco Bay Area

    Hi all, I recently inherited a Marantz 7C. After being assured it worked, I foolishly went to turn it on and the light on the front won’t turn on and doesn’t seem to work. Here are the internals/externals. Would anybody know of a place I can go in San Francisco (or the Bay Area generally) to...
    • tommysully
    • Thread
    • amp bay area marantz marantz 7c repair repair advice repair advice help needed san francisco tube vintage
    • Replies: 11
    • Forum: Marantz Audio
  16. C

    Novice needing advice on setting up a new system with B&W 804s speakers (+center speaker)

    I'm not an audiophile like most of you, but I love music and have always wanted a great sound system for my home. I just retired, so now I'm doing it and I need advice. I'd rather not buy all new equipment if I can avoid it, but don't want to compromise on quality so I hope to find equipment...
    • CraigNeil
    • Thread
    • amp bowers & wilkins new system receiever
    • Replies: 17
    • Forum: Speakers
  17. K

    Nakamichi 410, 420, & 430

    Hey all. New to the audio world. My in-laws are getting rid of things and I’m trying to decide if I should keep these. Very good, clean, and working condition. What are these worth? Quality compared to other equipment out there? Any guidance would be appreciated!!!
  18. O

    Opinions on the Pioneer A-402?

    I have a Sansui AU-3900 but there is this pioneer available that seems like a nice option to try something else but couldn't find a proper review or opinion.
  19. L

    Upgrading my desktop speakers and I need some AMP, Preamp, and DAC advice before prime day ends

    So basically, I am getting an upgrade for my desktop speakers, I'm going from $20 Logitech plug and play speakers, to Sony SSCS5 bookshelf speakers, a Elac SUB1010 subwoofer, and i'm not sure what AMP I should get, or if I need an external DAC or preamp. In regards to AMPs, I'm thinking about...
    • Luigimax14
    • Thread
    • advice amazon prime day amp bookshelf speakers budget dac guidance help preamp subwoofer
    • Replies: 0
    • Forum: Listening Spaces
  20. Jeromeof

    Aiyima A70 - Initial Impressions and Review

    Lots of features and perfect linearity - a perfect first amplifier Class D amplifiers have seen significant advancements over the past few years. Initially, they were often dismissed as low-quality ’toys’ due to various sonic issues, but step by step companies like Aiyima have progressively...
  21. Dudo

    Marantz 4060 service manual

    Hello, I know there have been inquiries before, but please let me know if anyone has a service manual for the Marantz 4060 QUAD amplifier. I bought the amp on ebay because I liked the look of it, but I can't even find any descriptions of how people like it. Please contact me if you have any...
  22. Leda

    MARANTZ Equipment

    I bought a storage unit that had some Marantz Stereo equipment and have no idea how to hook it up. I need help with the AMP and the strange plug on the one unit in the pic. Is there a schematic somewhere that would explain hooking up these strange animals somewhere? Where might I find a needle...
    • Leda
    • Thread
    • amp marantz stereo turntable
    • Replies: 17
    • Forum: Introductions
  23. R

    Yamaha Amp or Receiver that will fit my headphones (DT 880 600OHM)

    Hi I am searching for a Yamaha Receiver or Amp that will fit my requirements. I am going to listen to music on my JBL LX44G speakers as well as on my Beyerdynamic Dt 880 (600 Ohm) headphones. The Amp/Receiver can be vintage as well I don't care. I am looking for a decent headphone sound that...
    • Ronin53
    • Thread
    • amp headphones receiver
    • Replies: 1
    • Forum: Yamaha
  24. sean sweeney

    Question on 1959 Crown SXA tube amp power supply, switching noise from half wave rectifiers?? 120hz hum.

    So I got this amp in a trade deal a few weeks ago, and after one issue of basically building it back from scratch, from a blurry schematic from 1960, I still am getting some 120hz hum when the unit is idling, with the inputs shorted. I just replaced the selenium rectifier, and that seemed to...
    • sean sweeney
    • Thread
    • 1959 amp amplifier control crown gcr monitor studio sxa tube
    • Replies: 175
    • Forum: Tube Audio
  25. Racingh11

    Soundcraftsmen MTX S800 battery charger

    I needed a battery charger for a 144V hybrid tractor project I'm working on. I also have a MTX Soundcraftsmen S800 amp for parts. It is the same style as the old Soundcraftsmen PCR800, PM840/860 with regulated power supply. I needed the amp section to repair an S860, so I had everything else...
    • Racingh11
    • Thread
    • amp charger hybrid mtx pcr800 pm840 pm860 power supply soundcraftsmen
    • Replies: 1
    • Forum: Solid State
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