Hey ya.. I recently purchased 3 pairs of Klipsch Promedia 2.1 Channel speakers for a super good deal; however, my onboard sound isn't quite good enough to power up 3 subs. I'm using Asus A8N SLI Premium mobo with 7.1 channel onboard sound. Right now I'm using 2 pairs of Promedias and 1 pair of JBL Creature II giving me 6.3 Channel sound. The 3 subs do give off bass; however, the power is unequal. Forget about the JBL one. Comparing the 2 Klipschs each subs bass is different at the same volume and subwoofer level. I hooked up the klipschs as Front and Side. JBL is the center speark. Is there a sound card that can make each channel give out the same sound volume/bass/power? My plan is to create a 8.4 channel sound system for my com. Thanks