The original internal speaker cable from the amplifier is quite poor. So I decided to change it to OCC internal cables. As far, I haven't had time to sit down to test the performance after installing the new cables. I hope to get time this Sunday to have a test.
I tested the Hulk last night, I played the scene where Bruce jumped off the plane. There were 3 echos of bass after he hit the ground which I never heard b4 from my previous sub-woofer. The bass was deep, very accurate and great control with 壓迫感.