I can't spend over $300 on a sub.
Which would you choose with the AV123 x series speakers?
AV123x-sub for $200 or Infinity PS-12 for $300?
Maybe you like something else for $300 ;-)
I don't know about the AV123x sub, but I can tell you that the
Infinity PS-12 is a strong sub. It hits hard and low. I had mine in
a 16' x 19' room with 10' ceiling and it absolutely can slam out some
bass. May not be the most accurate sub on the market, but you can do
FAR worse and spend more and not get the same level of bass this thing
can put out. The bass is pretty tight for a relatively inexpensive sub.
One thing to remember though, is that this model has been discontinued, so
be careful where you buy. You may be getting a used sub, even though
i'm sure you can still find new, in the box on this item for a while longer.