From what I'm hearing, hertz and audison seem to be the best. The focal subs are very impressive too. Those brands are quite pricey though
**the best, as in better than mainstream. I'm sure you could spend a small fortune on Macintosh or Zapco amps and say thats better. Those brands are the best in the business as far as amplification, as far as I know. I've found that the best way to approach these situations is by going with what you can get your hands on.