Let’s clear up a few things, Vandersteen has been offering a unique powered bass system w 11 bands of Analogue EQ for at least 20 years now. Of course as an advocate of real science Richard is familiar w Geddes research and his own that formed the basis of his unique design. In fact those paying attention will remember Richard passing his congratulations on to Duke for his work and award. You can of course use multiple subs in the Vandersteen ecosystem of high passed speakers with built in or external subs. Perhaps some will recall system 9 subs at Munich ( best of show sound ).
The Vandy way preserves the transfer function of your main amp, has more cut than boost, the 11 band EQ is NOT octave based but based on empirical sampling of typical listening room nodes, and super importantly designed to give fantastic bass at the listening position ( gee where the rest of the stereo image is - for a company fanatical about time and phase since 1977 imaging is a super high priority. Finally in my system photos you can see an RTA photo of bass fundamentals and harmonics.... image destruction starts below 200 HZ, so you might want to watch that sub integration and placement carefully.
oh ya, of course I have heard a DBA :-)
The Vandy way preserves the transfer function of your main amp, has more cut than boost, the 11 band EQ is NOT octave based but based on empirical sampling of typical listening room nodes, and super importantly designed to give fantastic bass at the listening position ( gee where the rest of the stereo image is - for a company fanatical about time and phase since 1977 imaging is a super high priority. Finally in my system photos you can see an RTA photo of bass fundamentals and harmonics.... image destruction starts below 200 HZ, so you might want to watch that sub integration and placement carefully.
oh ya, of course I have heard a DBA :-)