Powerboxes are not cheap. I just used a JR 1222 Powersafe receiver for my equation, but there is a Powerbox 12K Royal that has a JR 1221 receiver built in, and I think it retails for $8-900. If IMAC were cheaper, I'd probably be doing that. I'm a poor, 23 year old college student, I need to get my kicks the most cost effective way possible!