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Thanks, Going to have to see what it could be wrong with the amp. I've tested all the components I could and everything seems to check out. Going to have to see which stage is actually causing the problem. Other than that it could be that I have some very hot pickups(I have them as close to the...

When does your clean channel start to break up? Mine is heavily dependent on the tone. Turn down the mids and bass all the way with 50% presence. I have to set the gain about 9o'clock(about 30%) and the treble must be < 12o'clock or about 50%(about 40%). if I strum pretty hard I still get a bit...

The 10W is probably not a huge difference than the 50W. I have the 50/100 and exclusively play on the 50W. There are more compelling issues with the LS than the lack of 10W. I had to extensively mod my amp to get a good sound. I have a killer metal sound now but now lack a good clean sound that...

I'm trying to diagnose my amp. I noticed that with the "feedback resistor" disconnected it reads 100Ohms across the point. On the schematic there doesn't show any parallel resistance(hence it should read infinity). Is there a short somewhere or is the schematic missing some information(I'm using...

Yep, I didn't have a load on it as I forgot a tube amp always requires a load. After a resistor started smoking I quickly shut down the amp. Seems no major damage occurred. Surprised there is fail-safe for a disconnected load. Seems pretty dangerous to not have something just in case. I guess...

I am trying to diagnose a problem with a LSC amplifier. I was using a freq. sweep input and noticed than when I turned the gain up the I was hearing the sound. There is no speakers hooked up and the sound seems to be an exact replica. I did not try other sounds as it seems pretty obvious that...

http://www.grailtone.com/forum/viewtopic.php?f=16&t=51386 Anyone have any issues or no the solution? I bought the amp used and the guy I bought it from didn't like the sound of it. I've had issues with it every since. The distortion just sounds way to muddy... which I've heard many complain...

I've been having some big issues with the tone quality of my lonestar and I noticed after trying to swap some pre-amp tubes out that they were cool to the touch. This shouldn't be the case, right? The issue I'm having is that the distortion or overdriven sound is very nasty, even with the clean...