Louisl,
I second Halcro's suggestion of getting a pair of Vandersteen 2WQ subs with High pass filter (pref. the Model 5 filter). Vandersteen's method of hook-up is unique (except for maybe Rel) and as Halcro described it takes the pressure of reproducing the very low bass from your main amp - which has a few side benefits such as increased dynamics and a more expansive and defined soundstage. The improved quality and quantity of bass is almost secondary to these benefits.I've heard speakers with far better reputations then the VR4's benefit from this arrangement.
I second Halcro's suggestion of getting a pair of Vandersteen 2WQ subs with High pass filter (pref. the Model 5 filter). Vandersteen's method of hook-up is unique (except for maybe Rel) and as Halcro described it takes the pressure of reproducing the very low bass from your main amp - which has a few side benefits such as increased dynamics and a more expansive and defined soundstage. The improved quality and quantity of bass is almost secondary to these benefits.I've heard speakers with far better reputations then the VR4's benefit from this arrangement.