I can't think of anything I've heard that "punches above its price point". The old maxim, "you get what you pay for" is true for most things. Sometimes you're paying for something other than sound quality (audio jewelry), but a $150 DAC is not going to sound the same as the best DAC you can buy for $2,000 - $3,000. Some in that price point might sound as bad as something that only cost $150 however.
I've heard some things that sound really good "for their price", but they are always making compromises in way or another. For example, I have a couple of sets of headphones that are in the $150 - $200 range that I really enjoy listening to. They are super comfortable and easy to listen to and in the case of one, it's tipped down quite a bit and is really good for listening to EDM, but in terms of sound quality, they don't really compete with my higher end headphones.
Why don't you just tell us what your budget is and get some suggestions in that price range?