Multiple Subs

No. Actually, there are disadvantages due to the large wavelengths interacting and causing null areas or "standing waves".

perhaps with sonos subs, but i have 2 12" klipsch subs in my family room that shake the dishes out of my kitchen cupboards.. 🙂

perhaps with sonos subs, but i have 2 12" klipsch subs in my family room that shake the dishes out of my kitchen cupboards.. :-)

Unless they are collocated, you will have nulls (aka "standing waves") in certain places where the long wavelengths overlap. Your dishes are probably in a peak area. 😉

I added another Sub (4 Play 5's and 2 Subs) and tuned the system. Even at low volumes, there is a strong, even dispersion of bass throughout the room. I also got an unexpected "cathedral effect".

I added another Sub (4 Play 5's and 2 Subs) and tuned the system. Even at low volumes, there is a strong, even dispersion of bass throughout the room. I also got an unexpected "cathedral effect".
I love having my two SONOS SUB's in the one room. Like you said at low volumes it's still so pronounced. I can play down to their lowest 25Hz range and literally feel it in everything even at the lowest volumes, all without overpowering the mix. Trueplay seems to perfectly balance the SUB's so there is no dead tones or overlaps. I love it!

Personally I think there are advantages to using two SONOS SUB's. I don't know how other subwoofers perform but the SONOS ones seem to work extremely well together. Adding to the mix, rather than subtracting. Depends on the room and the room size though. As well as positioning.

Think it depends on the size of the room. When I got my soundbar I did a bass test on YouTube. No need for a sub at all, it rattled the windows without one. Very pleased with just the bar and saved $750 on a sub that would have been overkill.

[quote=kmjy Trueplay seems to perfectly balance the SUB's so there is no dead tones or overlaps. I love it![/quote]
That is good to hear, though I doubt that Trueplay has the capability to do the tweaking needed to do this. Multiple Subs need very careful set up/calibration to add to instead of deduct from the overall experience and I would always suggest buying a second Sub of any make on a trial/return basis.

I am trying to hook uo another sub i just bought and it wont let me hook up another sub in the same room as my other sub. Did things change or am i just doing things wrong?

Any "room" in Sonos will only allow a single SUB to be bonded with it. You could create another room, group the two, and bond the other SUB to the second room, to get the same result.