Mixing subwoofers and how many?

[dirkl]

Hi,

I have two 12 inch subs (25hz minimum), one 10 inch (37hz minimum) and i plan to buy a Svs PB 2000 (not pro version). I may opt to not use the 10 inch, or is it ok to mix all these subs together? Would 3 12inch subs make any sense? I have a rectangular room and currently I get the best bass response (seat consistency) with the 2 12 inch subs in diagonally opposing corners. I just want deeper extension and therefore aim to add the PB2000. I like the tactile visceral bass response. I noticed that placing a sub against the couch really gave that feeling but then I loose on room bass consistency and it is not that useful for music listening. Can anyone advise on:
1) how many subs makes sense
2) makes sense to add the SVS to the already 3 subs I have?

Thanks

 

[gfinlays]

Subs are not my in area of expertise thus far, but to get the best out of multiple subs you really ought to be looking at taking some in room measurements to help work out where to place them and how to integrate them with your main speakers.

 

[Devnull]

1. Take a read through the attached paper it'll full of good info about multiple subwoofers.

2. Simulate your room using REW

3. Use multi-sub optimizer, or at least read through the documentation.

4. Get a microphone and make some measurements before you buy another sub

 

[anotherhobby]

Mixing subs should be fine (although mixing sealed/ported can be more challenging). Finding a home for 1 sub is usually easy enough, but finding a home for 4 can be challenging. In both of my multi-sub systems, I simply put the subs where they fit and where I wanted them, then I measured. The measurements happened to be quite good, so I never even tried or measured anywhere else. I'd recommend this approach. Try your ideal layout for what works best first, and if it works really well, then go with it.

 

[DVDdoug]

For the "room modes" multiple subs at different locations are usually better than one. ...And like everything else "more is better" and "bigger is better".

But at some point you do get diminishing returns and with different subs you MIGHT get the best results just using the best one instead if blending it with the inferior ones...

 

[just1n]

1. Take a read through the attached paper it'll full of good info about multiple subwoofers.

2. Simulate your room using REW

3. Use multi-sub optimizer, or at least read through the documentation.

4. Get a microphone and make some measurements before you buy another sub

I like how digestible his presentation is. https://www.harman.com/documents/multsubs_0.pdf