My experience adding subwoofers to 2 channel

A single sub, with bass traps and DSP, when optimally placed, is an amazing thing. People keep adding more subs, and more complexity because they never heard the single sub well integrated to begin with.

Unpacked the second set of subs this morning and fired em up.I haven't fussed with finding perfect placement yet but it's sounding really good already.The room is energized in a way that I can actually feel it on my skin.Not boomy or overblown whatsoever.Acoustic and electric bass sounds more natural and three dimensional.It's one of those moments where I just relax and know that this is the way it's supposed to feel.Like when you find the perfect compliment of tubes for your amp or get your speakers positioned perfectly.Sigh...there it is.
I was happy with the two subs but this is definitely a step up.

All the Phase Control on the Rythmik plate amps is, is a delay circuit; it achieves the same end as physically moving the sub enclosure to a different location. 1ms (the control has millisecond markings) equals roughly 1’. The control can of course only move time in one direction, into the future. ;-)

Vinnydabully,

i wonder what you do to be able to afford speakers costing $109,000.  Are they really worth the money.

I have bern right around Audio as a Audiophile over 35 years and Audiostore
owner until 08 . Have owned every major brand subwoofer in the past 3 years .
without question the best subwoofer with the most technologies by a customer untrue mile trickle down technologies from their flagship SVS ultra-16
is the Hot New SB 3000,13 inch sub Loaded with anything  no it does not has Bass EQ, but potentially much better , great app, powerful amp he only split voice technology in the world and makes a big difference at low volumes,not boom ,the center is smalller , for at low volume levels, as you crank it up,
it then uses the outer portion  50 MHz,52 bit Analog devises processor 
Nobody else has this high tech built into a under $2k sub ,at $995
i could not find better at 2x that it is that good. And I will probably buy a second sub ,for 2 good subs are always better then one to balance the room out .
even with one sub this Sb 3000sub is far moretunefull then any rel, $1500 JL audio I sold, rythmik,Velodyne, Syzgy,just go to utube, and see all the great reviews 
it is has been  out only 6months and is  the best under $2k sub on the market .
real tuneful articulate bass. It even has a 3 band parametric eq .
if you buy a usb Mike, Free REW Room wizardfree  Room software you can totally Taylor your room exactly to your preference with a little time and experience . Just check it out , who else will give you free shipping , a 45days
audition and they will pay for the return, and a full 5 years parts and labor.
that is truly having confidence in their product . The $3500 JL fathom ,ar$3500
was the only sub to be neck and neck with the $1995 SVS Ultra 16, the 
New baby brother SB-3000 has -0 competition ,even their 4000 model does not have the latest technologies , just bigger amp slightly bigger driver.
this 15 x17 sub with 13 inch driver is without peers . My brother has 2 SVS ultra 16 and he even agreed this sounds like a smaller  brother.
just check it out  Fantastic !!