Take one NHT original A450 Superzero (approx. $80 used) and add a new JLAudio e-110 subwoofer (Approx. $1,600). Use the active Linkwitz-Reilly crossover in the sub to dial in the SZ's. So what if the sub is slightly more expensive. The original NHT Superone with JLAudio is also a killer with e-110.
