I own two saxophones, a Selmer Reference 54 Alto and Reference 36 Tenor.
Mainly, I play on the Reference 54. However, both saxophones are professional instruments and you can hear and feel that, especially when you play them yourself. The saxophones sounds this way because they have appropriate mouthpieces and reeds. I had to search for a long time until I found the best accessories for the saxophones.