popping noise

Hi there, I am refurbishing a KA-7300 amp. I noticed a random low-frequency popping noise. It is noticeable in low volume or when not playing anything. I replaced several caps with low ESR in the power supply as it was running too hot. I also replaced the RK1 and RK2 with the original values of...

Hello. I have read a lot of threads here about cracling/popping, but without some help can not identify components whitch slould be checked. I tracked it down to right side power amp by removing preamp jumpers from back, becouse crackling and popping stayed. Now to the point of creating this...

Hi there, I’m a total novice when it comes to old speaker equipment. My current setup is a sansui7000 with two sp3500 plugged into along with a record player. Intermittently over the years occasional static comes through, but usually rearranging power cords, wifi routers, Alexa’s, or replacing...

Hi AK, This is my first post on here and I have to thank you all for all the valuable information on here. Such an amazing community. Without it, I would never think of taking on a project like this since this is not my field. I picked up a Pioneer SX-1010 a couple of months ago. I live in...

Hi all, So i keep hearing this popping sound coming from my speakers when watching tv. It happens A TON when airplaying to my sony tv from my macbook. It happens frequently but less when watching apps on my sony tv and I think it even happens when listening to my bluesound node (but much MUCH...

Hi AK users! I'm new here, but I wanted to ask a question, because I can't figure it out. I got my hands on a Realistic STA-2100 receiver recently, and I'm really pleased with how it sounds. My only problem is, when I turn it up, between 10 and 100 watts it starts making a really annoying...

I've replaced fusible resistors on the driver board, replaced all the electrolytic caps on the driver board except for the 470uf caps (C05 and C06) and I've also replaced all the caps on the power supply board except for the 10 uf caps (also C05 and C06 on this board) (somehow I overlooked these...

After few weeks, I just finished to restore my Marantz 2270. I recapped all capacities, replaced several transistors, diodes, blue switch, speaker relay and relamp all bulbs, lamps. At the end, I had a problem with popping crackles in the right amp board and without the volume potentiometer...

First, let me say that I've only recently (last 7 months) gotten into vintage audio and have been acquiring multiple pieces, trying out gear from the 70's mostly (Marantz, Sansui, Pioneer, Yamaha so far). I've also read much of ThisPost and have ordered much of the gear listed except for a...

Hello, I acquired a superb 2235B popping from time to time, it can be silent for hours. In between everything is normal and it is singing nicely. Although this popping is not continuous this should not be and I would like to correct this but how? The following has be done so far: output...

I thought I would share this for anyone who faces similar problems and IF its on the bass control knob or treble only I guess i.e those random loud pop sounds which suddenly comes outta now where i.e without touching any controls while you are listening to music I am currently using the Pioneer...

I have a Pioneer SX-650 that I love, but it started clicking even with no volume, and if I turned up the volume, it would play for a few minutes, and then it would click and lose sound, and then come back in a short time, or sometimes longer. I cleaned all of the pots, and done everything I...

This is my first quad repair. I need to move on from my tuner problem that I have been struggling with. I have the FM functional but not happy yet. ( see this thread if interested: http://audiokarma.org/forums/index.php?threads/qrx-5500a-fm-audio-problem.718021/ ) I have a Sansui QRX-5500A...

After about 20 minutes of use I got a LOUD popping noise. It sounds like if you were to drop a needle onto a record very violently and the volume is set to 11. I had to run over and shut it down. To be fair, it has NOT been restored but I cleaned the pots pretty good. Not sure what this could...