I currently have a M&K MX-150 sub in my HT. It's claimed to handle rooms up to 3000 cu ft - my HT is ~2700. Just the same, I'm thinking more bass would be a good thing
Since I can't buy another MX-150, would it be OK to match it with a 2nd sub from another manufacturer or is it better to have matching subs from the same manufacturer?
As for placement, my ideal location would be to put the 2nd sub somewhere on the stage behind the screen (see pic below), but that's where my MX-150 is now and I've heard it's better to place a 2nd sub somewhere else. Another location would be on the riser, to the side of the 2nd row of seats but, since I didn't fill the riser with sand, I worry that it could be a problem - it's stuffed with pink insulation and has 2 layers of 3/4" OSB with GG between. The last location is on the floor between the stage and riser, but if I put it there, I won't want it to be too big, since it would be so visible and that being the case, it may not be worth doing at all.
Pics of my HT is below - note the two superchunk bass traps in the rear corners (OC703)
Oh, I have M&K LCR-850s across the front and 4 Triad Silver Surrounds.


Since I can't buy another MX-150, would it be OK to match it with a 2nd sub from another manufacturer or is it better to have matching subs from the same manufacturer?
As for placement, my ideal location would be to put the 2nd sub somewhere on the stage behind the screen (see pic below), but that's where my MX-150 is now and I've heard it's better to place a 2nd sub somewhere else. Another location would be on the riser, to the side of the 2nd row of seats but, since I didn't fill the riser with sand, I worry that it could be a problem - it's stuffed with pink insulation and has 2 layers of 3/4" OSB with GG between. The last location is on the floor between the stage and riser, but if I put it there, I won't want it to be too big, since it would be so visible and that being the case, it may not be worth doing at all.
Pics of my HT is below - note the two superchunk bass traps in the rear corners (OC703)
Oh, I have M&K LCR-850s across the front and 4 Triad Silver Surrounds.