Well i ve just tried w/ those plugins (which i think there are the more accurate at the moment IMO)
Null2 plugin 1.35
Pete s Dsound 1.10
Iori spu 1.45
I ve experienced the best sound w/ iori ' s one.
Here s my configuration:
Just set the defaults settings and check High, resolution mode; wait gor XA buffer is free; enable noise and pitxh modulation and I ve enabled the reverb too.
Of course there are small glitches (like the introduction movie for example).
But i find it great (enough to play anyway).
I ve a Sound Blaster 512.
and (i know it will annoy some of the people here) try VGS w/ fftactics:
The only glitches i have found in this one is some sound missing (night sword effet for example)