My loud three piece heavy psych / ambient / doom metal band uses an old Simmons SDS 400 analog drum synthesizer module. We trigger the kick, floor tom, and high tom. I can't think of many bands that have tried to use analog drums sounds in heavy rock oriented music. While intriguing, it's been harder than thought to get it to sound decent with everything. The kick is dialed in on the brain to add a very low, fat, subby punch to be tucked under everything. The floor tom is fairly low and deep as well, but set up to be a bit higher than the kick. The high tom is reminiscent of that classic Simmons "beeew!" sound. Think Phil Collins on a metal kit with a double kick. As for what it has to compete with, my bass is droptuned and my "clean" tone is midly overdriven and heavy on the lows and low mids, and I use octave down, low pass filter effects and copious fuzzs. We're aiming for the bass and drums to sound as synthy and huge as possible, meaning overwhelming, punchy low end. The guitar is droptuned to C as well and is fairly shoegazey. Of course this means we end up invading each other in the frequency spectrum from time to time, but in our rehearsals we've found a good balance between everything. In our practice space we run the Simmons 1/4" mix out into the preamp inputs of a powered mixer and send the outputs into the inputs of a power amp to 1x18 and 2x15 PA cabinets. It sounds pretty good and makes for a very dense, full body practice. Live, has been very underwhelming. We can't seem to get the Simmons loud enough to be heard in the monitors or in the house. The only sound we can hear is the high tom. The soundguys have used the mix out of the Simmons > DI box. We're also trying not to add anymore cabs to drag around, so bringing our own sound system to the venue is kinda out of the question. Anyone have any suggestions?