I don't know that your prejudice against subwoofers is warranted.
In order to fill your huge room subwoofers might be the best option. Not all subs are created equal. Vandersteen subs and REL subs seem to be highly musical (i.e. fit for the most critical two channel audio listening). Positioning them at the back of the room may help "fill" the void. I would recommend a pair, since much low level info does come on either left or right channel.
My listening room is 13x23 and is filled quite easily by the bass created by twin pairs of Eminent Technology LFT-8A's as main speaker, along with pair of Vandersteen 2W subs. That's 10 8" drivers for bass. Even the lowest frequencies are reproduced without effort. I actually have the Vandy subs dialed down a bit since there's so much clean bass, they don't have to work hard at all.
I would caution using a sub with larger than 8" drivers in multiple configuration for use with panel/hybrid speakers, since it won't be able to keep up with the speed of the panels. But trust me, the Vandersteen sub can work fabulously with a panel speaker. I've used it with Magnepans and now with Eminents quite successfully.
In order to fill your huge room subwoofers might be the best option. Not all subs are created equal. Vandersteen subs and REL subs seem to be highly musical (i.e. fit for the most critical two channel audio listening). Positioning them at the back of the room may help "fill" the void. I would recommend a pair, since much low level info does come on either left or right channel.
My listening room is 13x23 and is filled quite easily by the bass created by twin pairs of Eminent Technology LFT-8A's as main speaker, along with pair of Vandersteen 2W subs. That's 10 8" drivers for bass. Even the lowest frequencies are reproduced without effort. I actually have the Vandy subs dialed down a bit since there's so much clean bass, they don't have to work hard at all.
I would caution using a sub with larger than 8" drivers in multiple configuration for use with panel/hybrid speakers, since it won't be able to keep up with the speed of the panels. But trust me, the Vandersteen sub can work fabulously with a panel speaker. I've used it with Magnepans and now with Eminents quite successfully.