Looking to power a pair of OA 12" D4's. Going to run at 1 ohm and looking at these amps in case I want to go with more power handling subs in the future. Box will be built by Starr Mountain and tuned to spec. I have found used around $300 range and figure I'll get better quality for the budget price if I buy used. I'd like to hear from current owners of each product if possible or from someone who has listened to both.