What is the best HEAVY METAL speaker?

Not sure why all the hating on metal, saying you should listen on a boombox, and only with 15" woofers. I'm a huge metalhead myself, mostly death and doom metal, and the music benefits just as substantially by quality gear as any other genre.

I have an Odyssey Lorelei speakers driven by a Pass Labs X150 and a Modwright LS100 Pre.

I do agree with Nrenter saying: "stay away from horn, electrostats and planers" I would look into some of the towers by Axiom audio or Revel, some of the best metal I've heard. Have you decided yet, or made a short list?

I think there are metal speakers out there, you just need to shop around. I listen to mostly death metal as I said before. Let me add some more to the Revel and Axiom suggestions I made before.

Tyler accoustics, legacy, vandersteen, von schweikert, swan, usher.

I have personally tried Zu speakers (which like tekton are often suggested for metal/rock), and was not satisfied at all. Full range drivers like that should be avoided at all costs. They don't move enough air/have enough driver displacement to have adequate dynamics for metal.

As others have said, a powerful SS amp is a must, but I for me, adding a tube preamp upstream of my amp made a huge improvement.

Also in my experience, subwoofers are not a must if you have at least 2-3 6.5" woofers or a 1-2 8" woofers.

There seems to be tons of suggestions for "Pro=type" speakers (for lack of a better word), like JBL and Klipsch horn speakers. I've never personally tried this kind of speaker, and am a little reluctant due to the lack of low end production. I'm not really sure how speakers having 12" or even 15" drivers can have such a disappointing low frequency extension. For instance the Klipsch Heresy, an almost universally-loved speaker is listed at 58-20,000 Hz (±3dB). How can this me possible for a 12"? Am I missing something here? I would hate to buy a speaker with a monster driver like that, and huge size overall, and still have to invest $1000 on a SVS or REL subwoofer.

If you do go the way of big fullrange drivers, Emerald Physics is another to check out. http://www.emeraldphysics.com/