I don't think Onkyo uses an ICE module for its A-9555 class D integrated. Its damping factor spec is a mere 25, but you'd never know if from the sound in my rig. It's clean, tight, full, and extended. Anything but woofy or characterized by overhang. And I've been A-B'ing it with a VSP TransMOS 150, which has a damping factor around 1000.
In my rig, to the Onkyo's advantage (concerning damping factor) the woofers are a mere 5.5" in diameter, but to its challenge, one is augmented by a passive radiator and the other by a tuned port. Yet the bass is clean and totally tuneful.
In my rig, to the Onkyo's advantage (concerning damping factor) the woofers are a mere 5.5" in diameter, but to its challenge, one is augmented by a passive radiator and the other by a tuned port. Yet the bass is clean and totally tuneful.