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amplifier

  1. M

    NAD 3020i 220V

    Hello: I just purchased a NAD3020i amplifier as part of a group of older hi fi components. It is a 220V model that a friend bought online several years ago, not realizing that it was the 220V and not the 115V model. Can this unit be converted or re-wired to work on 115V? I do not believe that...
  2. T

    Pioneer lx 440 reciever sounds distorted via speakers but fine via headphones?

    See title. I was looking around online and read a thread where someone fixed the issue by recapping the power supply. I am pretty sure this is necessary regardless considering the lights sometimes dim a bit out of nowhere. But is there anyway to make sure that this is indeed the issue?
  3. T

    Luxman sq 505x right channel dead.

    So I bought what I thought was a luxman sq 507x but what ended up being a luxman sq505x with a 506 front secondhand a couple days ago but it has a dead right channel. After some trouble shooting I found out that someone had connected the pre amp connector switch incorrectly so I was hoping that...
  4. T

    "Works as it should, sounds great!".............

    As you could probably tell it does not, in fact, work as it should or sound great.
  5. J

    Sakura AV-735UB

    Bought this Karaoke amp last winter when I was in the Philippines, anyone know anything about it? The manual that came with it says very little about it's functions! There are 4 buttons at the top left labeled WISE4 - WISE1, I haven't a clue what these are for and they don't seem to do anything...
  6. Nervous_Dude

    Suggestions on first amp and/or preamp under $1,500

    Hey Everyone, New to the community and working to put together my first set up since having 'adult money'. I managed to get a pair of ADS L710 speakers and have a Fluance RT-81 turntable. Trying to pick the right amp/receiver to pair them with. I'd like to spend less than $1,500 on both the amp...
  7. H

    Leak 2100 - pcb question

    Who likes a puzzle? Have just inherited a beautiful Leak 2100 integrated amplifier. In excellent condition, it appears to function really well. Great, but.. Looking at the pcb I see this (deliberate?) gouge into one of the traces, circled in red mark up. Can anyone tell me what effect this...
  8. AlexHempel

    Emory Cook and Gus Jose's "The Ultimate Amplifier" (Long Post Warning)

    I've always loved mono tube amps with big transformers, and I also enjoy browsing the auction site (these are both undesirable traits). In any case, I make a mental note of every large, interesting pre-1960 mono amp that pops up. A while ago (I think a year or so?) I saw an amplifier called the...
    • AlexHempel
    • Thread
    • 101-3101 316a amplifier cook langevin tube ultimate
    • Replies: 61
    • Forum: Tube Audio
  9. B

    How do you find the right amplifier - speaker match

    Hey folks, I recently had an interesting experience and wanted to share this with you all to try and make sense of things and perhaps better understand how amplifier matching works. I currently use a pair of Sansui SP-X9000 and Acoustic Research M3 as my main listening speakers. I usually...
  10. nightbeat

    Looking for Amplifier to use with AR 2ax Speakers

    Hi Everyone, I know this has been posted about before, and believe me, I've read the threads. But I could use some advice. I'm looking for an amplifier to use with a pair of nicely restored Acoustic Research AR-2ax speakers. I'm currently using an Onkyo TX-8222 50 wpc stereo receiver. My...
    • nightbeat
    • Thread
    • 2ax acoustic research amplifier marantz receiver sansui
    • Replies: 20
    • Forum: Solid State
  11. dave500

    Valve Amplification Company PA-45

    I acquired a VAC PA-45 amplifier set (amps & power supplies) in mint condition (gold & piano black finish). They operate flawlessly. The PA-45 is the 2-EL34 version of the PA-90 (4-EL34); they are monoblocks with separate power supplies. Does anyone have any information on them, or using a...
    • dave500
    • Thread
    • amp amplifier pa-45 pa-90 tube vac valve amplification company vintage
    • Replies: 3
    • Forum: Tube Audio
  12. dave500

    VAC PA-45 information

    Hello, I acquired a set of Valve Amplification Company VAC PA-45 (2 amplifiers & 2 power supplies). Other than the owners manual, I'm unable to find anything about them. They are in pristine condition; piano-black finish, and perform flawlessly. The PA-45 is the "little brother" of the...
  13. C

    Magnavox 9302 - Rebuild

    I recently acquired a Magnavox 9302, and I'm in the process of rebuilding it. I've stripped the chassis completely, and I'm nearly done doing the mechanical work on the chassis... soldered over the extra holes, body filler, all the aesthetic stuff. I'm having some trouble with the schematic...
    • Cameron06
    • Thread
    • 12ax7 93-series 9302 amplifier edcor el84 magnavox tubes ultra-linear
    • Replies: 64
    • Forum: Tube Audio
  14. Briant8

    Carver M500t toasted r181

    Calling any and all Carver gurus, There I was, just listening to some nice tunes with my Carver M500t and suddenly, burning smell, fuse blows, and silence… Crack her open and r181 is toasted. Nothing else looks affected (to the naked eye). I’ve done a fair bit of repair/ recapping, etc. but...
    • Briant8
    • Thread
    • amplifier carver m500 m500t r181
    • Replies: 7
    • Forum: DIY
  15. Pub Sub

    Seeking Help in Resurrecting my Kenwood KA-8100

    Hey all! Yesterday I bought a Kenwood KA-8100 that was advertised as broken. Today I need help in restoring it. The inside and outside of the unit are pretty darn clean. It appears as if one corner of the unit took a drop head on and bent but did a pretty good job of protecting the internals...
  16. Mahan Safaei

    Marantz 2245 VS. Kenwood KR7400

    Hello, I'm new to the vintage Hifi world and have the opportunity to pick up the units noted above. The Marantz for $450 and the Kenwood for $350. They're both in working condition but show their age. Neither unit has been restored or even cleaned. Which is the better choice. Please see the...
    • Mahan Safaei
    • Thread
    • 2245 70's amplifier kenwood kr7400 marantz marantz 2245 recieiver vintage
    • Replies: 4
    • Forum: Solid State
  17. tlite

    Worth keeping Marantz 2235 Just for Phono Stage?

    Is it worth keeping a Marantz 2235 just for the phono stage? I'd then run it into a more modern receiver (Onkyo NR808) from the pre-outs to an aux in. One reason is that I have some 86dB sensitivity Elac DBR62's that I really like, but think they need more power to sound good at lower volumes...
    • tlite
    • Thread
    • 2235 amplifier marantz onkyo tx-nr808 phono phono stage preamp
    • Replies: 14
    • Forum: Marantz Audio
  18. crazy-in-az

    Need help with Goldmund VRS M2 monoblock

    Long story short- I found a single Goldmund VRS M2 mono amp at Goodwill. I stuck around for about an hour to see if they brought the other one out, but no dice. I'll check again tomorrow. Anyway, I found out why such a high end piece of equipment was at Goodwill. One of the MOSFETS took a major...
  19. zastin17

    EL34 Tube Amp Wiring Dummy Check Please! :)

    One of the major annoyances on my very first build ever, was figuring out all the tips and tricks after already mostly assembling the amp. Drilling more holes at this point would be difficult, and before continplating starting a 2nd build, I would like to get some of these tips/tricks drilled...
    • zastin17
    • Thread
    • 6l6 amplifier diy el34 tube valve
    • Replies: 3
    • Forum: Tube Audio
  20. Stereoboy70

    STA 2100D

    Hello All. Working on a Realistic STA 2100D receiver. Have an issue with the L channel amp. I rebuilt both amps and did all my adjustments. It was running smooth until today. Turned it in and R523 exploded I had to replace 2 of the output transistors and a couple of resistors. As well...
  21. Devileyes

    Pioneer SA-706 weird volume and balance issues

    Picked up this ‘untested’ SA-706 in sort of rough shape. I’ve cleaned everything, blew it out, pots and switches cleaned with D5 and Fader, had to do it a bunch of times to eliminate scratchiness and noise...even had to use D100 on a few pots. Mostly working now, but having balance and volume...
  22. zastin17

    My First Amplifier Build!! 6L6/6P3s Push Pull Stereo

    This is my very first tube build ever. And I can't believe I did it!! I'm only 22 years old, so I'm very young and new to this Tube design thing. I have learned so mutch and now I'm addicted.... Now I can say without a doubt in my mind that my scratch built 6L6 Push Pull Stereo Tube Amplifier...
    • zastin17
    • Thread
    • 6l6 amplifier diy el34 solder stereo tube utilitarian
    • Replies: 20
    • Forum: Tube Audio
  23. SoundCrafter

    Soundcraftsmen vs?

    Howdy all, I've got a Soundcraftsmen separates system I've been enjoying for about a year now. Consisting of a Pro Control 3 with upgraded signal path capacitors and has had all controls completely rebuilt. A 2215rp Equalizer, and a completely rebuilt Soundcraftsmen RA6501. I'm using the Emotiva...
  24. Brunt

    Anyone seen these before? - Infinity HCA Hybrid Class A Amps

    In terms of non-speaker infinity products, FET preamps and the tonearm are all I've ever seen before. I've seen Klaus's page on these before but never seen any listings for them or anything. I'd love to hear what Nudell and his crew cooked up for amplification back in the '70s, and if the seller...
  25. Bedri®

    Luxman L215 new PCB

    Hello I designed the Luxman L215 amplifier pcb according to my own requirements by taking advantage of its open scheme. It works healthy. I did not use the tone control circuit. I designed it in two parts as the supply circuit and the amplifier. Bias adjust 50mA I wrote the content by...
    • Bedri®
    • Thread
    • amplifier circuit diy pcb l215 luxman solid state
    • Replies: 0
    • Forum: Solid State
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