zeller216

If you're in north-central ohio. This is where I got my USAmps. Exotica Entertainment 295 W Center St Marion, OH 43302 http://www.exoticaentertainment.net/ -I've been putting together their website- hehe Check them out, good place.

I think I would not mount that tube amp anywhere near significant vibration. Ultimately tubes are sensitive to vibration and that's probably the biggest problem you're having. I haven't personally heard the 4300, but if you already have the 4360 then you have all you need to be happy. I would try and fix your issue right now. [*A. make sure that the amp is getting adaquate ventilation, those tubes get real hot so don't mount it on it's side. *B. (not sure what you're driving) but mount it on the floor of your trunk and maybe even put it on a board (covered in carpet and/or foam) and then screw that down to the floor of your trunk. *C. (optional) try and mount it away from the trunk.] The 4300 isn't necessarily "built" any better, it just doesn't have vibration sensitive components.

Dirk's the man. With that said, under the products [AX Series], the Tube Amps are mis-labeled, they are copies of of DE amps. Might want to have someone take a look and fix that. Otherwise, the site's well done & the unload button is key.

yeah, all of my amps do (DE as well)

I have a set of TU amps and a DE amp as well for my single 12" Nothing but joy from the tubes, IMO -my amps sound better than yours- haha, but that's just my opinion. The AX-TU300 is solid and beautiful, the TU4360 is great as well. The warm up time on it seems a bit inconsistant though and one of the channels can lag behind the others (happens to turn out to be the front-left for me). But we're talking like an extra minute on top of the 30 sec. average from being off for a couple days. The oddest -small- detail is that the RCA input's colors are reversed (red for left and white for right) ... I definately did not read the label beside the input on one set (anxious) and turned it on, fiddled around, and noticed that something was backwards with what I was listening to. The 500DE was a step up from a Kicker KX300.2. I love the DE, there is no comparison between the two, the DE owns -simple as that. Might come back and add on to this later as I think of things.