Yeah I was talking about hiss. I sheild and ground all eletronics in my guitars so they are "virtually" noisless. Get very little outside interference from even my single coils. Moved the heater wires to standing and found a wire on V1 that needed to be re-soldered. Checked all other solder joints as well and everything seems good. Fired it back up and man! This thing is quieter with the overdrive now than with some pedals I've used on other amps. There is a little hiss at higher levels but nothing that you wouldn't expect. Definately much quieter than before. I've also let it burn in over the course of the last week and the tone is really sweetened up. Very happy with the build and with the sound of the amp.

Ouch! gotcha...
Ok so that doesn't sound like a good idea at all! Have a situation where I'm playing in a building where thieves actually stole the outside ground wire from the building for the copper. Yeah... While waiting for a resolution (insurance, etc...) in the meantime, causes a lot of outside interference and a LOT of noise in the instruments.
Thanks for the quick rely.

How would I wire the two position switch in my OTS 50 to use as a ground lift? Currently it's not in use (as per the layout).

Thanks guys. I'll check cables and the like.

Also am going to move my heater wires to standing up this weekend. Currently they are laying down (like the pics from the Ceriatone site). Seems like it makes more sense to have them away from everything. Will check other connections while I'm in there as well.

This is my first amp build and it's been the most fun I've had in years!

Sorry don't remember what they were off the top of my head. Besides, I'm not trashing the OTS - it's a great amp. Im just wondering if the problem is common and if not how to fix it. Common causes, etc... Tentatively you've answered one question. Now how is it fixed?

I've seen clips online with other OTS models and they seem to have the same issue. Mine is the OTS 50. I am good in the clean channel, but have a pretty good hiss in the Overdrive section. Any way to get rid of this completely?

Newbie to amp building, but not soldering and electronics. Have a way to go in the amp building. Re-wired some of the pots (including the preamp volume) this weekend. I had to substitute some of the RG174 on a couple of the pots. Newbie mistake #1 - had originally wired the grounds on the RG174 jackets incorrectly. Got new cable in, rewired the substituted cable with the new and Voila! Problem solved. I had considered overheated toggle switches too, but they were ok. Thanks for the reply.

I've just finished my OTS build and it sounds amazing! I do have two issues though.

1. When toggles are set to bright=off deep=off and rock=on, I get a horrible buzz in the clean until I dime the preamp volume. When the preamp is on 10 the buzz goes away. No noticeable buzz in the overdrive.
2. I get a pretty good hiss in the distortion regardless of my settings.Y

Ive checked solder joints and everything "looks" to be ok. I'm a total newbie and this is my first build so I'm learning.

I would like to order a black w/black grille tall cab. How much for shipping?