I can't answer maximum dollar invested and still quality as "budget." I think that's the responsibility and opinion of the system owner.
I put together a system for a friend, all used equipment bought through Audiogon. Total was about $1500.00 and sonically it qualifies as high end.
It's been four years since we did that. He plays it every day, all day and has had no reliability issues. A bit of luck here I think :^).
I still get thanks for putting it together, he was about to go to Best Buy and drop nearly that much on junk.
I put together a system for a friend, all used equipment bought through Audiogon. Total was about $1500.00 and sonically it qualifies as high end.
It's been four years since we did that. He plays it every day, all day and has had no reliability issues. A bit of luck here I think :^).
I still get thanks for putting it together, he was about to go to Best Buy and drop nearly that much on junk.