Personally, in the $500 range, I would go passive. There are a few things you have to watch out for...
since the source (I presume it's a cd player) is driving the amp you need to match the output impedance of the cd with the input impedance of the amp. Also keep the cables as short as possible.
There are some very cheap (under $300) used passive pre-amps I like (Creek, Mod Squad to name a few).
Good luck.
since the source (I presume it's a cd player) is driving the amp you need to match the output impedance of the cd with the input impedance of the amp. Also keep the cables as short as possible.
There are some very cheap (under $300) used passive pre-amps I like (Creek, Mod Squad to name a few).
Good luck.