I had a little scare today. As you know, I purchased a third X3 for center channel duties. Today, I was playing a Jazz album (CHRIS BOTTI, NIGHT SESSIONS in 5.1 multichannel, DSD 64). Lots of bass. As I was listening, I thought the center channel was not producing enough bass. I felt the rear of the bass driver on all three speakers. The left and right speakers were pulsing away. But, the center channel sub was barely moving. My heart dropped. I thought I got a defective speaker. So, I swapped the left and center channel speaker wires. Whew! Center channel sub was rockin' and rollin'. Left channel sub was quiet. Must be the way the music was mixed.
Marcus