i dont think 4 watts will power 2 x 10" subwoofers?
but i might be wrong as steve d has filled big rooms with big sound with small amps.
the wo32 is amazing, build it or buy it, and when you have it, you can see what amp works best.
if you choose woofers for a 32, that were extremely effcient AND had the right ts params for a 32 you might create something very
special indeed ?