Glad you found the problem. I am a Vandersteen dealer and have been running 2Wq subs for years in theater systems and they have proven indestructable-- even in cases where someone has forgotten to use the required high pass filters!
We have enough 2Wq subs lying around the store that I typically one under every channel of a surround system for the ultimate full-range experience. A system just sounds much bigger and more effortless when each speaker is supported by the 2Wq down to near 20hz and with the additional 300 watts supplied by the built in sub amplifier. It also takes a huge burden off of your loudspeakers and power amplifiers at the same time. Just make sure that any speaker you run with a 2Wq is capable down to 40hz or better for optimal blending.
Good luck.
We have enough 2Wq subs lying around the store that I typically one under every channel of a surround system for the ultimate full-range experience. A system just sounds much bigger and more effortless when each speaker is supported by the 2Wq down to near 20hz and with the additional 300 watts supplied by the built in sub amplifier. It also takes a huge burden off of your loudspeakers and power amplifiers at the same time. Just make sure that any speaker you run with a 2Wq is capable down to 40hz or better for optimal blending.
Good luck.