Xb X-Array Bass System

• Manifold Technology® dual 18-inch low-frequency system    
• Loading two woofers in the basic X shell optimizes performance for low-frequency enhancement of contemporary music (response 3 dB down at 37 Hz with EQ)
The Xb is a manifolded, vented-box bass system utilizing two 457-mm (18-in.) woof- ers. The two woofers face each other in a manifold chamber at the center of the en- closure. This manifolding technique (U.S. Patent Number 4,733,749) increases the acoustic loading, resultin...