The much-maligned (by Audiophiles) Cerwin-Vega brand has long been a favorite of metal fans like yourself. The CLS-215 in particular has gotten some great reviews in print and web journals:
http://www.cerwinvega.com/CLS215.php
I haven't heard it, but based on your priorities and current equipment, it would seem to offer a lot of what you like about the Klipsch (high sensitivity, detailed highs) along with tons of slam, speed and full-range performance.
The MSRP is $600 each but I'm sure you can do better. In fact, my guess is that some people will buy them just out of curiosity because of the positive press. So, I'm sure some used pairs will make it to eBay and Audiogon soon.
http://www.cerwinvega.com/CLS215.php
I haven't heard it, but based on your priorities and current equipment, it would seem to offer a lot of what you like about the Klipsch (high sensitivity, detailed highs) along with tons of slam, speed and full-range performance.
The MSRP is $600 each but I'm sure you can do better. In fact, my guess is that some people will buy them just out of curiosity because of the positive press. So, I'm sure some used pairs will make it to eBay and Audiogon soon.