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Crackle in lower watt settings

Posted: Tue Sep 17, 2019 11:37 am
by primeholy
Hello. I don't get on here much, mostly when I have an issue of some sort. I am getting noise and crackle in lower wattage settings on channel 2 and 3. I was wondering if you have any suggestions on what to do. I replaced v7 preamp and it still does it. About a month ago I replaced one of the reverb tubes cause I was getting crazy swell feedback while using reverb, and it fixed that. I have new power tubes that I can throw in, but I wanna see if anyone thinks that could have anything to do with it. Sometimes it will stop doing it and come back. It doesnt do it when the channels are on 90 watt setting, and it is the worse at 10 watts.

Re: Crackle in lower watt settings

Posted: Wed Sep 18, 2019 2:14 am
by APEMAN
Things to check:
- Rectifier Tube (always on in 10Watt mode)
- {Speaker connection (cable, plugs, jacks)}

Good luck!

Re: Crackle in lower watt settings

Posted: Wed Sep 18, 2019 12:14 pm
by primeholy
Thanks apeman. Just ordered a rectifier tube from sweetwater per your suggestion. I think I can rule out speaker jack/cable since it’s in lower wattage settings only, but if the rectifier tube doesn’t help, I’ll try that. Shoot, I guess I could plug it into the other 8 ohm jack on the amp to see if that changes things.

Re: Crackle in lower watt settings

Posted: Thu Sep 19, 2019 6:37 am
by mace
I had a crackle a couple weeks ago and it ended up being the rectifier tube. Swapped it out with new and all is good. Hopefully that'll fix it for you also!

Re: Crackle in lower watt settings

Posted: Thu Sep 19, 2019 8:14 pm
by primeholy
My rectifier tube will be here tomorrow YAY

Re: Crackle in lower watt settings

Posted: Sat Sep 21, 2019 12:28 pm
by primeholy
It wasn't the rectifier tube, but luckily I put in my new power tubes and the noise is gone!! Nice and quiet!

Re: Crackle in lower watt settings

Posted: Mon Sep 23, 2019 6:57 am
by mace
Good deal. I have found "crackling" noises (when nothing is playing but the amp is on) to always be caused by either a worn power tube or rectifier tube. Same for my stereo system amp.