i have a garnet pro, and this thing eats tubes. i cant leave it on for much more than a half hour without the entire plate turning red. im not real sure what the deal is, i was told that these amps run really hot and there wasnt a whole lot to be done about it. i was wondering if there was a good pair of 6ca7's that could stand a higher plate voltages that i should look into putting into this beast. also, i was searching stuff on garnets in these forums and i saw a mention of a mod that could be done to make the fuzz useable at lower volumes. is there a schematic or a layout or instructions somewhere on this, because, i love the fuzz on this amp, but it just doesnt work until its turned up insanely loud. if you dont get it opened up it just sounds like you have a bunch of screws on your speakers. thanks.