Mind if we check the obvious stuff first ? Speakers are set to Large when the sub is off (so the receiver doesn't filter out the bass), room is big enough to reproduce the low notes well (say at least one dimension >12 feet) ?

The Audigy 2zs frequency response seems to be good enough to be a non-issue, unless there is some high-pass filter option we don't know about. Tom's has frequency response charts for different modes -- this page is for 24 bit 96 KHz but the bass response is the same for all the modes :

http://www.tomshardware.com/consumer/20050608/video_editor-09.html

Last edited by bridgman; 08/22/05 01:11 AM.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8