Mfontana,
Just to let you know, I heard the VR-4SRs driven with the VAC Phi 110 too at a dealer, and although it sounded wonderful, the VAC wasn't able to drive the SRs two woofers with authority, somewhat wooley and undefined bass. I own the VR-4SRs, and have a solid state amp. A more powerful solid state amp can grip these woofers with more authority and laydown the bass as it was meant to be heard and felt. I suspect you are having or hearing the same effect from your VAC/VR-5SE combo. Try to use a powerful solid state amp on the woofer modules, don't forget they are 4 ohms. I'd say at least 300 minimum of high current watts to make the woofers sing. Give it a try, you will be amazed how good the bass is from the VR-4SRs/ VR-5SE.
Just to let you know, I heard the VR-4SRs driven with the VAC Phi 110 too at a dealer, and although it sounded wonderful, the VAC wasn't able to drive the SRs two woofers with authority, somewhat wooley and undefined bass. I own the VR-4SRs, and have a solid state amp. A more powerful solid state amp can grip these woofers with more authority and laydown the bass as it was meant to be heard and felt. I suspect you are having or hearing the same effect from your VAC/VR-5SE combo. Try to use a powerful solid state amp on the woofer modules, don't forget they are 4 ohms. I'd say at least 300 minimum of high current watts to make the woofers sing. Give it a try, you will be amazed how good the bass is from the VR-4SRs/ VR-5SE.