Peavey Classic 30 shut-off "POP"

Shut off pop annoys me too. One thing I do is if the amp has a headphone jack, I plug a small headphone adaptor in before switching off, and that cuts the speaker input so no pop.

A small thing, but I have hyperacusis, so the less pops the better.

 

My Delta Blues (mostly the same circuit as the Classic 30) pops when I power down with the amp on the overdrive channel. It seems to be normal. I just make sure I’m on the clean channel before powering down.

I suppose you could mod the thing for a standby switch, but IMHO it doesn’t need it. You can turn your tuner on or turn the guitar volume down to mute the amp.

 

I had a DRRI for a short time. It did this. I didn’t use it much or keep it long so I’m not sure whether it was common or not.

 

My C30 does that about half the time.

 

I’ve seen popping happen because an arc jumps the switch on shut down or a filter cap drains too fast because the value is only bare minimum to operate the amp.

To test just set the amp in standby mode and then unplug before turning the power switch off. If the amp pops when unplugged it could be a filter cap. If it doesn’t pop when unplugged it’s the switch.

It can be common on solid state amps or amps that have solid state elements too. My Sunn Beta Lead does it every time but it says in the manual it’s normal.

 

What about giving Peavey Tech Support a call and see what they have to say. I'm sure that "POP" in the back of your mind might be cause for a small amount of anxiety if you don't get a real definitive answer about it. And I'm sure you don't want that "POP" to graduate into a "HISSS-POP-PUFF!" of smoke.

I've worked on quite a bit of old audio systems, radios, phonograph console units (working on one right now, a 1959 EMUD console radio/phono, from Germany, SUPREME Quality, sounds awesome), with tubes and good amounts of caps. In my experience, the Old-School Radio/TV/Phono repair Techs would advise you to never power it on again til you get your question answered or get it re-capped. They can be quite adamant and obsessive about such things.

Although, on really old, vintage, antique stuff, caps are cheap and although tedious, relatively easy to replace. Power supplies however, can be rare, hard to find, impossible to find items and can be very expensive even more sometimes than the whole system. So I can see where they're coming from. Be kind of a lousy day if a 15 cent cap became the culprit of a system or power supply failure or something else very annoying.

Funny thing, every time I turn on an antique radio and/or phonograph I just about hear the entire membership of the Antique Radio Forum shouting, "Turn it OFF! and RECAP! before you BLOW it!

PS. I have a Peavey VYPYR 15 Practice Modeling Amp. Just checked. No Pops, if that means anything. I'm sure your unit is a completely different animal except for the manufacturer. Just thought I'd throw this in as a postscript for general interest. Oh, and... That's some Beauty of an Amp you got there. Perfect for a nice office.

https://peavey.com/c/Support

 

If it is mains arc from the switch, place a 0.01uF Disc Ceramic across the contact. That will stop any arcing.

 

Peavey seems to have a complete and wide variety of Support Resources which the Previous Link I provided earlier shows. I don't believe 10+ years is very old in the world of modern electronics. I've had cars with their original electronics, and other electronic devices, gadgets, etc, 30 to 60 years old that still had the same electronics that worked fine. And if you can imagine the abuse taken by being driven around in a car for over 110 thousand miles. I had a '62 Wurlitzer that came out of a bar and sat for over 10 years still worked fine and what an electro-mechanical wonder/nightmare that was.

Here's another Link:
Peavey Customer and Technical Support
"If you have questions concerning product operation, support or warranty, contact one of our Customer Support Representatives using our Forums, by email at [email protected], or by phone at 877-732-8391 (toll free in the US)."

Sometimes one ends up with a thing because that thing spoke to one. You and that Amp may just have found each other. In any event I believe 99% the "adventure" you have with that Amp will prove to be a bonding experience. I hope by working on that Amp you'll get to know it better than by just playing with it. I can't see the experience not becoming a beautiful personal relationship between the both of you. I believe, and this has to be true, that a musician's spiritual relationship with his gear is a significant part of the music that is created, the "feeling" within it, and maybe most importantly the "TONE". I've heard, and read, many times from musicians, especially guitarists: "It's ALL About The TONE".

Maybe that should be your "mantra" as you work on your beautiful, new, Amp. In fact, in the future, I know I'm going to adopt it!

 

Switch it to the clean channel and turn the volume and reverb all the way down before you shut it off.

 

All you have to do is turn the volume down.

 

My C30 pops. Owned it for over 20 years now, with no issues, so I figure its fine.

 

Yep mine did that. If you turn the reverb down it won't pop.

 

My super reverb does that, I always just assumed it was the reverb saying goodbye.