When I started planning on this project 2 years ago, in the planning stages, I wanted 60+ and to bassrace 59.9, but since then I have taken it down a notch, wanting to build something that plays low ( Fla style), Loud and moves an absolute insane amount of air.   What I started with     Subs   8 DC Level 5 M1 Motors, with David from PSi working his magic on the rest.  8 18" recones 3 spider setup    Amps - 4 SK2500.1s from Skar audio.  The setup got down pretty good with these, but I needed more power, and less problems   a single 300A Tenney that has yet to fail me   A 4th order bandpass    All Wiring and accessories were acquired from Audio Technix.  over 100ft of OFC 1/0, 8ga OFC for speakerwires,    Pioneer Prs80   Pink   Plexi   Mids are 6 Selenium mb3p10's on a Lanzar opti 700x2   Tweets are PRV ti405s (iirc) on a crossfire small 2ch amp.   Here are a couple of pics to gain a little interest, i have to go back to work, butill post some more up here very soon.