How many subwoofers are you using in your main system or home theater?

[JStewart]

Here's a question for those of you using REW and a miniDSP or similar device.. Do you EQ your subs flat or do you use a Harmon curve, the output level drop from 30Hz to 80 Hz by 10db. I've been using them and find the sound very natural, not bass heavy at all. I use it for both HT and 2 channel applications. I tend to bump the levels on the AVR for HT cause I love good vibrations

With me it’s the same basic idea as @ddude003 , just with a less elegant set of tools than he’s using.

With Dirac I use a 0.5dB per octave slope. (Approximately 5dB down from 20Hz to 20kHz)
To that I’ll add dynamic loudness at low volumes courtesy of the HTP-1 processor. And I’ll also use bass and treble controls at times to adjust the tonal balance to taste. Another feature of the HTP-1 which also allows for selection of the knee frequencies.

 

[Gordon Palmer]

Tell as much or as little as you'd like.

How many subs do you use in your main listening room or home theater?
What are the brands?
How are you equalizing your subs?
Do you have plans to add more?

I'm currently satisfied with my setup of two JTR 4000ULF-TL Captivators + six 2400 Captivators. I'm using the two 4000 units with dual 18s as my main subwoofers, and the other six are support subs using Dirac Live ART.

22,400 watts powering ten 18-inch subs in a 19.5ft x 23.5ft x 8.5ft fully sealed room.

4 SVS PB3000 eq with Minidsp using MSO to flat across 4 seats so single sub out on Arcam AVR20 with DLBC.
No plans to add more

 

[Grovestand]

I have 4 subs.

2xYamaha HS10W - Front Wall ~3' from left and right wall on floor
2x Yamaha SW181v3 about 8' from the front wall, up against left and right wall on the floor. Run off of a Behringer Inuke 3000DSP
I was using a miniDSP-2x4 balanced to handle delays and crossovers... But eventually I decided I wanted to use convolution, and I wanted to be able to change room curves, correction, and latency from the computer.

Now I am running VSTHost on my computer, using plugins for each of the crossovers and delays for my subwoofers (I'm using Pro-Q3).
I have multiple mixes running in VSTHost, but all of the crossover settings are the same for each mix. The only thing that changes is room curve and the convolution applied.
1. Convolution - flat - no room curve (sounds very accurate, but way too bright. Good for getting a clinical look at a mix, not really fun to listen to. If I mix a whole song with this setting it ends up being too dark)
2. Convolution - Harmon Curve (sounds good. Great for mixing.)
3. No Convolution - Low latency (sounds good enough. I have a lot of treatment, but some of the issues with the room make themselves known with this setup.
4. Convolution - Party Curve +6dB--6dB (can't remember exactly. (Sounds really great. Accurate enough. Very good stereo image. Great for mixing or listening.
5. No Convolution - low latency - Party Curve. (Sounds really good. Not great for mixing, but for writing music or jamming it's perfect).

I used the Dave Brancato room correction method from Gearspace/YouTube. It's an excellent way to use Room EQ Wizard and dig a bit deeper into what is possible with correction. The only thing that would be better would be a Trinnov.

Having gone from hardware to software I can recommend it if you don't mind getting into the weeds on configuration and routing.

I do not have plans to add more subs, but I might replace all of my subs with DiY at some point. It would be nice to have more control over the size of the boxes and placement in the room.

Other details:
Mains are Neumann KH120s
My room is 11.5'x7.5'x26'
Primary purpose is stereo listening room/audio production studio.
The ceiling is completely covered in 12"-24" of bass trapping. The corners are treated.