hi, i have hear them both on 2380 and 18 inch with BSS x-over and 2 Bryston BSS 4. The 2446 is the Pure and Raw Jbl Sound.Loud,clear,dynamic,live. The 2450 sounds to me more softer,HiFi like. My Friend see it exact otherwise. So I think itīs a Question of Taste. As I allways say"Hearing is like Tasting"