Not sure what BC would do in your case.
ART would for sure use your large speakers, but then have not been following ART "stereo" setups aka sans subs. With subs, ART latches on the "main" sub and then rest of the subs and speakers support that sub. Usually a good idea to have such sub in good shape - so it can play loud an clear, but it will get meaningful contribution and reinforcement from the rest of the gang.
My main sub has some pretty nasty holes in the FQ response, but they all get filled by the supporting subs and speakers so that I end up with pretty flat (+/- 1.5 dB) response and decay generally lower than 70ms.
ART would for sure use your large speakers, but then have not been following ART "stereo" setups aka sans subs. With subs, ART latches on the "main" sub and then rest of the subs and speakers support that sub. Usually a good idea to have such sub in good shape - so it can play loud an clear, but it will get meaningful contribution and reinforcement from the rest of the gang.
My main sub has some pretty nasty holes in the FQ response, but they all get filled by the supporting subs and speakers so that I end up with pretty flat (+/- 1.5 dB) response and decay generally lower than 70ms.