Neither of those setups are very good at all, but I would give the nod to the B&W...that SVS has unacceptably high levels of harmonic distortion in the upper bass and lower bass. It is an absolute terrible performer. The B&W also has very high levels of harmonic distortion, but much less in the upper bass. All in all, they're both absolutely terrible performing subwoofers and I would never consider using one as my personal driver.
