amplifer

Hi, A couple days ago I recognized one strange thing on my E77ESD. The first picture coming from USA that the device has additional plate clearly visible (circled in green) other device is produced for Europe area and has not got that plate. So anybody who is from Europe area checked their...

I have a hiss or crackle or static on both channels (but not at the same time) when using the marantz 2270. I switched the cables left and right channel and the static appeared on both channels. (not simultaneously) The amp was recapped and serviced just recently because of this but the...

Fosi Audio BT20a MAX User Experience and Presentation I received a new package from Fosi audio. Thank you very much for trusting my neutral reviews and thank you for not expecting anything "only positive" from my review. I was given free rein to write an honest user review. Let's see what...

I've got an Aragon 2002 downstream from an NAD 1700 and a schiit DAC, all RCA connections. Suddenly, with no prompting and with the preamp off, the speakers start making loud ungodly grounding sounds (like when you bump the tip of an interconnect with your finger). After I turned everything off...

Hello all, I have been trying to set up my system using an SA-708 amplifier, an SG-9500 equaliser and an SR-202 reverberation amplifier, to no avail. For simplicity’s sake, let’s say I have only one tape deck that I connected to Tape 1 on the amplifier, so this “chain” will be using the Tape 2...

Hi! I found a Pioneer FX-330 (identical to SX-330? except radio bands?) in very good condition in a charity shop. It has a combined Volume / Balance knob, where it's "split" in two, and the inner part is balance while the outer part is volume. Problem with mine is they are completely stuck to...

I am rebuilding a Dynaco Stereo 120, with UpdateMyDynaco power supply and replacement caps, and the eBay TIP-mod amplifier boards, and I am seeing two issues that I could use some help with. 1) High DC offset (~200mV), and 2) the #4 and #14 eyelets are reading 71.3V instead of 36 and 37V...

Good evening Ak'ers, I have been doing quite a bunch of reading on this machine and I have finally decided its worth reaching out for some help with the issue I am having. I picked up an absolutely perfect condition Kenwood KA-8004 integrated amplifier last year for little more than the cost of...

Hi folks, Im currently undergoing a full restore of a beloved Sansui AU-777 amplifier. Have already been following threads by @Leestereo and @KeithD among others to gain better understanding. So far, I have redone the power supply caps and all is sounding good, I can already notice an...

Hello! I recently acquired this amplifier and there is an issue with the volume knob. When I turn the volume up and down there is a loud clicking noise that only goes through the left channel. I tested it on speaker B and the same thing happens. The right channel is fine on A and B. Its as if DC...

So I have this Receiver from the 90s its called Sony TA-D705 the problem is that the receiver when connected to my Speakers is not loud enough. I have to turn up the volume dial to the max, to barely hear something. When I put a CD in my Player and press CD Direct on my Amplifier it plays loud...

Hi, greetings from Italy. I would like to show you guys my project, still WIP but almost done. It's an amplifier based on the P3A project from Elliot Sound Products with some modifications. Custom made PCB. It got Bluetooth (Qualcomm QCC5125) with aptX Adaptive and LDAC, USB (Amanero384 +...

I plan to replace my current amp (Denon pma 600ne) with one of the two amps in the title because I no longer need all the functions that the Denon provides, e.g. DAC, BT, preamp etc, and I am looking for a pure power amp. I only need the amp to drive a bookshelf speaker, namely, Elac dbr 62 and...

Hi all, longtime vinyl hoarder here finally hoping to build a decent setup to take me back to my youth! I have just picked up a pretty mint Thorens TD 150 mkII which for sentimental reasons is going to be the TT (My Dad's TT when I discovered music in the 70s) Now looking to get a decent vintage...

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...

Has anyone tried this Sony TA-11 amplifier? How does it sound? Is it worth buying? Specifications Power output: 25 watts per channel into 8Ω (stereo) Frequency response: 15Hz to 30kHz Total harmonic distortion: 0.2% Damping factor: 25 Input sensitivity: 1.4mV (mic), 2.6mV (MM), 250mV (line)...

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?

Hey everyone. Been grappling with the amplifier section of amplifier section of Marantz Model 2325. When I received it, the left channel amplifier was keeping the unit in protection mode. When I disconnected that section and just ran it with the right channel amp, the unit comes out of...

Hey everyone. Been grappling with the amplifier section of amplifier section of Marantz Model 2325. When I received it, the left channel amplifier was keeping the unit in protection mode. When I disconnected that section and just ran it with the right channel amp, the unit comes out of...

Hello all, I recently picked up a low wattage (speaker is rated for 2 watts) amp on the verb, and it has a few issues. I think it needs a cap job, because after a few minutes of playing on higher volumes (so far higher volumes only) it starts humming and ring modulating. At low volumes it works...

I have a Yamaha YPD6 that run through a shitty rolls vp29 preamp, and want to upgrade. I was looking at this Yamaha CA 410/610 that a local record shop has at 410:150$ and 610:175$. Saw a forum online that had someone who bought both a CA 410 and a CR610 and people in the comments said the 410...

I have a seton tus600 tuner that has a very low output on the “output” jacks. 1, would it hurt anything to just use the record out to feed the amplifier and 2 are there any simple things that may be causing this. I have some test equipment and basic knowledge of circuits. But any help from you...

I had a Pioneer SX-770 that had way too many issues to be worth repairing (only the amp, power supply, and phono were somewhat functional) so I pulled the parts and made a power amp from them. After getting it functioning there was a noticeable hum in the speakers that sounded like a ground...

Push pull switches. When servicing can anyone advise on best lubricant for these switches in vintage amps. Ideally, a homemade recipe as I just need to disassemble and regrease one switch. Can petroleum jelly be used? Thanks in advance.

Hello everyone! Thank you for letting me in. I would like to showcase my latest mini 6.5W SET amp that I am loving it very much:jump: I am still learning and figuring how to improve it bit by bit everyday. :beerchug: .