Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Hey, my first post here. I picked up a Crate RFX65 the other day and really like the clean channel on this amp. I've been playing it for a while now and all seemed ok. The other day when I had left it running and was in another room, I thought I heard some sputtering sounds coming from the amp. Of course when I returned to the room, all seemed normal - some low level hiss from just being turned but no sputtering coming from the speaker.

I am concerned that it might be a sign that there is trouble coming with this amp. I was wondering if anyone has any techniques they use when trying to determine if there is an issue in cases like this. I thought about just leaving it on for a long period of time to see if there is a possible heat related issue going on. Any other ideas?

Thanks

I'm quite sure it's nothing.
At most, some external interference which got in through the power line or something.