I was able to pick up a Monster HTS3500mk2 a while back for really cheap ($109) then about 6 months later the volt meter illumiation went out so I sent it back to monster and since it was a discontinued model they sent me a brand new HTS3600MK2 for free \:\) I have seen them on sale here and there. You may be able to pick up a 3500 off amazon or something. Then just remember to turn the volt meter up all the way all day long so you burn it out before its out of warranty (5yrs) worked for me \:D

Haoleb's Audio/DIY Website