http://www.axiomaudio.com/boards/ubbthreads.php?ubb=showflat&Number=313713&page=1

read this thread, i tried to find the original vp-180 thread, but was not able to find it... the general consensus is the VP-150 does not even compare to the 180.

when i upgraded, the difference was so huge, that i wished they had come out with the 180 many years ago.....