wrote in message
...
Thank you Jim for adding some sanity to this discussion. The Quad 63
series is indeed a phased array intended to mimic a point source at an
assumed distance. At least that's how Peter Walker described it to me
back in 1979.

If you want more bass output, buy a 989 or 9805 instead of this silly
stacked arrangement of 63s. It keeps the point source mimicry with
greater SPL and lower frequency output. That was the point in making
them, after all.


Or add an REL sub and spend some time setting it up correctly - best
improvement I ever made to my Quad 63 setup, although removing the metal
protective grilles also helped.

Geoff MacK