Or get a sub(s); and have it/them high pass back to the amps everything above 30 hz or so.
Down.. ready set..
Full signal. Pass to the sub.
Sub high pass to the Pass..
X-A 60. Point 8. Monoblocks. On two. Hut hut, hut.
Can Pass XA60.8's drive Revel Ultima Salon2's without their tongues hanging out?