I used a spl meter (radio shack now has a digital for $50, $40 if you send a survey) and calibrated beheringer EQ's and a feedback destroyer,using a test disc. From there use the spl to adjust speaker sound levels. Whala, all smooth and balanced.

Outlaw 950
Rotel RB 985 Mark II
Klipsch Forte II,s (front)
Klipsch KV-3 Centers(2)
Klipsch KG4,s (using 2 of 4 I own)
SVS 16-46 PCI sub
Behringer 8024 EQ's (2)
Behringer 1024 Feedback Destroyer