Subwoofers - crazy upgrade!

@elamar I’m using a 12 inch SVS sub.  Should I add my old 10 inch  Martin Logan’s?

If you've mapped out your rooms standing bass waves using the crawl to position your subs in and can invest in some inexpensive custom length interconnects from Monoprice or Blue Jeans Cable, I would certainly give it a try.

The likelihood should be a noticeable difference in room pressurizing and low frequency presentation.

Mapping your room only need be done once. It's the key for optimal -3dB subwoofer/s room integration unless you're using a four sub distributed array (Swarm). All the best.  

I love my 2 direct servo 12 inch sealed Rythmik F12G subs.

https://youtu.be/WBpDJ38shtk

@erik_squires  The use of built-in DSP and calibration on a sub is priceless

100% agree with this.  If I hadn’t experienced it recently, I’m don’t think I would fully grasp the magnitude of the improvement to the room from DSP to the sub (and woofers).  DSP was able to successfully address and significantly reduce room nodes.  The room got notably quieter...almost like magic.  The room wasn’t even noticeably noisy or boomy.  After I had braced my suspended floor, I thought things were dialed in pretty well, but a few surgical narrow cuts using the PEQ on the DSP was eye opening.  

The purist in me was always a bit squeamish to even try it, but since I bi-amp with solid state amps to the sub and woofers, and run tubes to the midbass/tweeters, I was able to install the DSP to only the low frequencies.  It really made an audible improvement...at least in my case.  Highly recommended!

Funny thing is... I'd bet those who are making claims that dispersing subs around the home theater room is "better" have never tried stacking.

Excuses. It's just too much trouble. Not worth the effort. Too heavy. Maybe they'll vibrate.  Etc...  Yet somehow you got them in the room to begin with. You moved them around. Stacking subs is too much effort for some reason.

The anti-DSP purist for subwoofers has never heard what taming a 12 dB or larger peak in a sub can do.   While there are many ways of taming a peak, not all are available to everyone or are equally effective.  

It's time we treat DSP for room modes like we do mental health and stop feeling ashamed.