Hi all!

I recently bought a Grand Canyon and I love it, but I’m worried I’ve damaged it. I was testing all the settings and I went onto DMM, and played a few notes. I had the feedback knob set to max because I didn’t know that it could cause a cascading volume swell. Seriously, why is there no warning in the manual about that? Like, hey guys, be careful, this is dangerous.

The volume began to rise towards dangerously loud, and I had seconds before my speakers were gonna be at risk. With a brand new pedal, I didn’t know what would work to stop the cascade, so I did the first thing I could think of that would stop the noise: I pulled out the AC adaptor from the back of the pedal.

Now, when I use the pedal, something weird transpires. Essentially, when it is first switched on, the pedal works fine. Then, over a period of several minutes, the volume of the pedal’s output fades. After 10-15 minutes it’s very quiet, and as far as I can tell, it just keeps fading the longer you leave it on.

If I activate the bypass circuit, the volume is normal. But if I re-engage the pedal, the volume is still at its quieter level. If I unplug the unit from the power then plug it back in, the problem ‘resets’; in other words, the pedal begins again at full volume and slowly drops.

Interestingly, I’ve noticed that if I go on Sample/Hold mode when the volume drop is happening, the pedal can’t ‘hear’ the input. So it seems like the problem is that the pedal thinks the input is quieter than it is, for some reason.

I am worried that my actions may have damaged the pedal, but I’m also not convinced that’s what’s happening. It’s just one explanation. I feel like these sorts of pedal should be able to take being accidentally disconnected from the power right? I mean, surely that’s not enough to break it? Does it matter what other pedals are before it, or whether I’m running a guitar or synth into it?

I’d like to figure out whether it’s me or something else, because if it’s not me, I can send it back to the seller for a refund if necessary…