Whats a good cab company or product in the $200-$400/$500 price range that you can load with and speakers you want?

Also I've only played with Celestion Vintage 30s, but what are some other speaker types that put out a great low end for thrash and death metal, but clean up nice for prog, jazz, blues/classic rock stuff?
Avatar, they are pretty much custom built for you. You can load them with a few different Celestions.
Gibson SG Standard
Gibson Les Paul Traditional
Cort Explorer
Squire Standard Strat rebuilt with Fender USA parts
Squire Tele
Krank 1980
Orange Tiny Terror
Traynor YCV 50 Blue
Peavey Vypyr 75

Will fly for food. Call me Dylan
Avatar and Lopoline
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I've had tube amps for a while now, but never actually had any go down on me
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maybe you're not saying the right things? an amp likes to know you care.

I've heard nothing but good things from Avatar. How are Vadar cabs? Also what are some good speakers other than V30s and what are they made for (ie lows, mids, etc.)?