I'm considering trying out a Behringer Ultracurve (DEQ2496) with
matching ECM8000 mic to see if it can help improve the bass end of my
home stereo setup. (I realise that r.a.p is more for pro users, but
frankly I trust the opinons of this group more than any other in the
rec.audio.* hierarchy). Bear in mind that this is a stereo system in a
normal domestic living room. Spousal considerations mean that there is
no possibility of adding room treatments, and the speakers (ATC
SCM100A) are already positioned pretty much as well as they can be
within the constraints of domestic harmony (about 2ft from rear and 3ft
from side walls).

I understand that EQ, no matter how finely controlled, cannot correct
time-domain problems, and therefore is pointless at higher frequencies.
But I'm happy with the mid range and treble; it's just the bass that
seems a little wayward, with some obvious humps and dips. A sweep tone
exhibits obvious loudness ups & downs. I'm guessing that these are
"room nodes" (standing waves and suck-outs?).

OK, so the point of this question is: can a digital EQ system like the
Behringer, working only at low frequencies (say below about 300Hz) be
expected to improve matters in a specific room with a specific set of
speakers placed in specific locations? I have read opposing views over
whether this can work. Back-of-cigarette-packet calculations tell me
that the wavlength of a 300Hz signal is nearly 4ft, so I'm hoping that
any room correction at the low end will encompass a large enough
listening area to be worthwhile.

I could just go out and buy an Ultracurve then unload it on eBay if
it's a failure, but if people here can convince me that it's a
non-starter then I won't bother. For the record, a TacT system is out
of the question, budget-wise.