OK, I finally broke down and succumbed to the Aphex 204 hype and bought one. Seeing Nathan East's picture in their BP ad pushed me over the edge. I futzed around with it in front of my WT-300, and it did beef up the ol' D-210XLT with some extra bottom. They key is not to overdo it. Anyway, I bought it for my small PA, which consists of a Mackie 1604 VLZ running into a pair of Mackie SR 1530's. On board in the rack is a Digitech Studio Twin effects unit, dbx 2215 equalizer/noise gate, dbx 1066 compressor, and now the Aphex 204. The Digitech is all by itself in the effects loop, while everthing else is looped into the main insert, in this order:send>compressor>EQ>Aphex>return. Yes, the EQ belongs after the compressor. You can put the Aphex before or after the EQ, with a mild recommendation for before. Our gig last night was a private party indoors, 100 people max. We didn't want to lug a lot of gear, so the acoustic guitar, rhythym guitar and bass all left our stage amps at home and went directly to the board. The lead guitar brought his stage amp and DI'd it to the board, as well (nyuk nyuk nyuk). I ran my bass through my Shure UT with no effects, preamp or DI between it and the channel strip. However, I did use the Big Bottom half of the Aphex's channel two as a direct insert into my (bass) channel strip. I kept the aural exciter half turned off. This worked very well. With just a moderate amount of drive, it really filled out the bottom end of those 15's in the SA 1530's (I know, I know ... 15's suck. And yes they do.). The bass was the only thing receiving the big bottom effect. Then, I used only the aural exciter half of channel one in the main insert chain described above (big bottom off). Again, the Aphex really shines here. It really made the vocals much more crisp, and put them right on top of the mix. The key, again, is a little dab'll do ya. Bottom line, money well spent. For small gigs like this, we cut way down on humping tons of gear, we being old farts, and all.