The best place in NYC

There are a number of great places.

If you're into analog, tubes, horns and hybrids, check out High Water Sound owned by Jeff Catalano. His service, support, and sound is the best I've discovered for myself in 44 years of trying.
Kenny

Audio Connection in Verona, NJ...about 15 miles outside NYC.

Check out Lyric Hi Fi!
https://www.lyricusa.com/