There was a black version on eBay for $25 less than the silver one IIRC. 4k seems crazy but then again hobby is a misnomer for passion. One of the things that really counts in my book is the operating temp of gear. I wonder how the RPA-1 behaves in that regard. I'm thinking of using one or maybe two Behringer A500 amps for these subs but then again this Aragon beast is already here. It just bugs me that it's the wrong tool for the job ... and black would suit me better ... and it's 2 feet tall!