hello, has anyone used the monoblock to drive their subwoofer. Currently thinking of a vented HSU tube design with Fb at 16 hz using an adire dpl 12 in. woofer, at 4 ohms....I'm hoping the monoblock has a high damping factor associated with it. Also using a modified acurus act-3 (mondial upgrade) as the preamp, set to 80 hz on base management. The other channels are driven by a carver 806x with the center channel bridged. Any thoughts appreciated..