amplifiers

I guess I need some help with this. I have a YAMAHA AX-870 on the bench whose right channel was significantly quieter than the left. I have traced the fault back to a defective right-channel op-amp on the volume control board (NJM2068SD). As the component is rare, a Chinese import was the only...

Hey all! I'm hoping to pick up these tube amps this weekend. Before I do, I was hoping to gather as much info on them as I can to make a fair offer on buying them all. Please review the photos I've attached and post any knowledge you may have on them! These are all DIY handmade amps and...

I'm pretty well finished in building my systems, and anything that I might want is not likely going to show up at a thrift store. I've had hundreds of pieces of gear during the hey days of vintage audio. For a while, it was a desert out there! Especially considering the things I have found in...

Basic Amplifiers Watching a 1950s instructional video a amplifiers. So well explained, just found it. Army Tech

Hi , I have a very confused thing about luxman l 510 eu and japan versions. EU Version = Only Support 8 to 16 Ohms Japan Version = 4 to 16 Ohms, Does anyone have any idea why the same model uses 2 different impedance and the EU version also doesn't have a signal processing switch? Please if...

I have 2 Adcom GFA-565 Monoblock Poweramps and while both turn on having power, they are not delivering any sound to connected speakers. The speakers work properly as well as the cables connecting them function. Also, there's no "pop" noise when turning the amps on from the speakers connected...

Hey all, I fell bass-akwards into a pair of Vandersteen Treo CTs and now have to get an integrated amp that will realize their promise. Even on my Chi Fi 8W tube amp (admittedly upgraded with high end components and tubes) they sound extraordinary, but from what I’ve read they really open up...

Hello all, New guy here, just posted an intro in the "introduce yourself" forum. I'm putting together a system for a second home and I'm really trying to recreate a specific tone or sound, I call it detailed but smooth, not overly analytical nor too warbly. To start with I picked up an old...

Hi, a friend has convinced me to invest in a proper music system. I just have a basic JBL wireless since 2017. I bought the Ruark R2 MK3 and returned it after a day as I just wasn't happy as it couldn't play music off a USB drive and couldn't read the CD either. Perhaps I'd be better off buying...

Two different amps -> crossover filter -> speakers ??? Hi all, I am wondering if this connections can be done: Receiver --2 x RCA-> NAD 3020i -2 x speaker cable--> Post amp crossover filter -2 x speaker cables-> Speakers \--2 x RCA-> NAD 319 -2 x speaker cable --/ I hope my...

I have a NAD C352 which needs to be replaced. I use it to alternately drive a pair of KEF iQ3's or a pair of KEF LS50's. The source is either a NAD C542 DC player or a Raspberry Pi with a DAC running as an LMS. The amplifier was bought around 2008 or 2009 and has given me good service. The...

Hello my dears friends, Recent I have an opportunity to buy one of these three receivers but unfortunately I never so one live and don't know which one to buy. Pioneer sx-737 - 250eur Pioneer sx-838 - 370eur Teac AG6500 - 400eur Can anybody give an option of which one it worth, I also don't...

I have a HK870 power amp which I purchased new about 32 years ago.Physically the amp is in excellent condition and I currently use it to power a second zone in my home. It just doesn't sound as open or clear as it once did. A year or so ago, I replaced the input coupling caps, thinking that...

http://www.burningamp.org/ Nelson Pass will be speaking on his latest Solid State efforts, as always. I will be speaking on tube applications in preamps and and "not in the book" power tube applications like the RM-10. Have a look at the webside and join us. Thats Sunday 9/30th

I have an amplifier Pioneer SA-8800 II Specs: Continuous power output is 80 watts* per channel, min. at 8 ohms from 10 Hertz to 20,000 Hertz with no more than 0.005% total harmonic distortion, or 80 watts* per channel at 4 ohms from 10 Hertz to 20,000 Hertz with no more than 0.005% total...

Have been thinking about trying a new slightly higher end amp - looking for AK opinions/thoughts re these two lower-price Emotiva products. I have never owned any Emotiva gear. My main standalone amps in some of my secondary systems include Yamaha M-35s and various D amps, mostly 3116 and 3118...

If you have an eye for cool-looking audio components, you notice that they are sprinkled throughout movies, TV shows, and advertisements. Here is a place to log your sightings. Here's a start. Can you name all the gear in the system Gene Hackman jams with at the end of The Conversation?

Hello. I searched the net but I can't find any information about this subject. I know about Japanese products but how about products from Germany? Have the old Saba, Grundig, Telefunken, Wega , Dual, Basf, Nordmende, Uher, ITT, Braun, Revox, or other vintage manufactures output coupling...

Hi, Im fairly new to vintage audio. I picked up a working KA-501 amplifier from the dump last year and spent the beginning of this summer fixing it. I got all the controls working and replaced the meter lamps with LEDs. I cleaned the entire inside, replaced the speaker terminals with 5-way posts...

I have been using a Sony TA-E900 preamplifier for many years and have loved it because, to my mind, it has the perfect balance of musicality and detail. It is not too warm and mushy like some valve amps and not too harsh and 'in your face like some solid state ones. Unfortunately it now seems to...

Hello All, First time post here. I recently threw the dice and picked up a Pioneer SA8500II at the Sally Ann for $10. Turns out it isn't currently working. I have looked up the reviews on this amp, and figure it might be worth having it restored. I have no idea how much a restoration typically...