One or two JL subs?

Peter_s
Keep the subs the same. The two different subs will NEVER integrate with each other. Two 112's would be MUCH better than a mix of 112 & 113.

I have just one F113 in my 18 by 19 home theatre room
it goes damn deep
a second would be nice but not necessary

my main 2 channel doesn't need a sub
Salk HT3

Audio Advisor is selling the Velodyne SMS-1 sub controller/PEq for $450.

Even if you were to use the SMS only to optimize placement of your subs it
would be worth the incremental cost. The video readout provides visual aid
that -IME- correslates very tightly with what you actually hear. You might
get there by ear alone (without visual feedback), but it will be a long, hard
slog. I just run the sweeps, move the subs, and watch the screen. Personally,
I wouldn't ever again attempt to deploy subs without such assistance.

Moreover, you will undoubtedly use the SMS-1 for much more than that. I'm
sure you'll find that the tremendously flexible low pass controls will allow
you to optimize the integration of your subs and mains with precision that is
otherwise (virtually) impossible. Further, if your room presents persistent
problems that can't be solved via placement -and it probably will - the
parametric EQ will be quite an effective tool.

If the $450 busts the budget, I'd go with a pair of less expensive subs (maybe
F110s if you're wedded to JL) and the SMS (or equivalent device). Since you
can return the SMS to AA.com if not satisfied, I think you'd be taking very
little risk to check it out.

Good Luck,

Marty

PS - The one caveat I'd offer is that the high pass is both very limited in
flexibility and digital in nature - it subjects the main signal to A/D/A
conversion. Therefore, I don't use the high pass function in my SMS. You
can either run the mains full range or use a different device to high pass - I
use a ($300) NHT x-2.

The SMS features are in the DD series Velodyne subs, and I must say it/they are a super item. Just super.

I have trouble with the lower regions being able to tell exactly, without comparison, the actual tones being played. The EQ addresses those issues and by reducing the tops off the high nodes in the sound, everthing falls into place better and setup becomes almost a slam dunk... a dolly helps too with the more hefty class subs like the DD15, DD18, 112s & 113... A suuport person from JL told me about the dolly useage.... Sliding a 100+ sub across extra deep or plush pile carpeting simply doesn't get it IMO.

So yeah.. EQ & a dolly or two perhaps, are well worth obtaining..