I think you guys would like our Pyle sub driver. It has superior construction (rubber surround, poly coated cone, dual voice coil, lower impedance / higher power rating) and can accommodate the PinWoofer dual-channel sub amp.
Our sub ring (WPC or universal) raises the driver off the deck and allows for free movement of the cone beyond the plane of the basket, unimpeded. We have amps, powered sub and backbox kits or go over the top with the 5-1/4" WPC super kit:
We design and cut our own cabinet and backbox rings. Pictured are the sub kit, WPC backbox adapters and some proto runs on the development router. (Get rid of that 3-1/2" speaker for good!) We have many more designs depending on the target (WPC/WPC95/Sega/DE/Stern/CGC, etc.). You guys should give PinWoofer a try. We have scores of kits in WPC and they really do take your pin to the next level.
If we don't already have it, we will make it! Just ask.
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