Fluctuating volume

I thought I would start a new thread since the title of my previous thread may have been misleading.

When I have my amp plugged into the “amp in” and a cabinet connected to “Speaker out”, everything sounds great for about 5 mins, The volume then diminishes then gets louder then back down.

I don’t have anything else connected to the amp or PS-2.

I have only had the PS-2 for a year or so and never gigged it or put a lot of hours on it.

Is this a tube issue or something else?

It could be tube related depending on how drastic the level change is.

Try connecting a jumper instrument cable from the FX loop send to the return. That could help isolate the issue.

Dave

I tried the jumper cable…no improvement.

I put in brand new tubes, here is what it sounds like…more like a crackle.

This is amp into PS-2 and speaker cable out to 4x12.

I live in Camarillo, is it possible to drop it off at your shop to assess?

Yes, you’re welcome to do that.

Weekdays 11AM to 4PM.

9620 Topanga Canyon Place
Unit D
Chatsworth, 91311

Dave,

I dropped off my PS-2 last Friday. Terry mentioned you were out of the office until Wednesday this week.

Just checking to make sure you got it ok.

Thanks,

Roger

Hi Roger,

It’s in the repair/evaluation queue here. We’ll get it done as quickly as possible for you.

Thank You,

Terry

Hello Guys I Am experiencing the same issue with my PS-2A. ( volume drops after 5- 10 min and FX loop gives me a drastic drop in volume as well ) . The issue here is that I am from Canada ( Montreal ) and I do not know if there is a service point close by that you guys work with. Or will I Have to send it out to US for Repairs

Thank you in advance