I am also on the Wyred bandwagon, the 500sx monos drive my 1.6s with ease. They do not come up for sale used too often and rightfully so, they are great amps. If you keep a lookout one can pick up a pair for 1k you just have to be paitent. With my amp and preamp combo I get ear splitting volume with the dial at 12 o'clock on my pre.
