Any experiences regarding monoblocks on sub woofers (Kinergetics SW800 towers)? My main amp is dual mono (tubes), the only shared component is the negative feedback control. The manufacturer has actually sawed these puppies in half to prove that they perform the same whether in one chasis or two. I agree with all of the superlatives thrown at mono amps -- just wonderin whether they make as much of a difference on subs. Thanks.