Ive been using a Roland KCW-1 for years now its only 200W but it gives out a good low thump dont make them anymore but you might still pick some up otherwise there are loads of decent subs out there its what you want to pay is the sticking point...Duncan.
Mapex Tornado AtoE Td-12 ,Td-4 and TD-3 modules, 2 GEN-16 368 packs, 4 CY-12 R/Cs, VH-11 and Tama Cobra Rolling Glide & Speedcobra Pedals,Roland KCW-1,ProSound 1000 Amp and two passive 250WRMS 15" Cabs,400W Wharfendale Wedge,Behringer Ultra DI pro and Ultragraph 16 band EQ, Alesis iMultimix8USB mixer with ipod dock.PC Athlon 3000XP 2 gig RAM and an XFi Sound Card.32" monitor.Cubase 4LE, VEX Master Piks 1 & 2,80s & 90s Gig Kits and Exotics & G4M 200W wedge.