The Eclipse subs work great in the application you have. To me it sounds like you are asking a little too much of them or perhaps have the gain to high as you are separating the surround. This is a breach of the mechanical parameter of the sub. Try a different model Eclipse sub, perhaps a step up model like the Hybrid or aluminum cone series. Beleive it or not, the Lightning Audio Strike series of subs sound and perform great in a small sealed box as well.

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Forbidden Audio Ltd. (1995)
Rob Atkinson

MSN and E-mail - forbidden@telus.net

Eclipse / MB Quart / Digital Designs / Soundstream / Power Acoustik / Parrot / Pioneer / Pioneer Premiere / Kenwood Excelon / Morel / Focal / Scosche / EFX / MTX / Bass Slammer / Audio Control / Blaupunkt / ARC / Stinger / Streetwires / Metra / Pac Audio / Bassworx / JBL / Infinity / Compustar Pro / Audiovox / Clifford / Autopage / Fusion / CDT and whatever else you need.