Question Regarding Using Two Subs In HT

The more subs the better. No they don't have to be the same at all. More subs gives smoother, faster, better bass. 

Definitely do not have to be the same.  A little more difficult to get it "right" but most times very doable.   I should know, I am/was using 5 subs, twin Klipsch RT-10ds, one Klipsch RSW-10d, one SVS-SB13 Plus, and one Revel B-15.  Lots of trial and error.

Bill

Bill,  please elaborate. Thanks.

Phase, placement, volume/gain, LPF all very important and not easy to get where I wanted it.  Not perfect for music but for HT more than pleased with results.

Bill

Ok, makes sense. Our installer was adamant a second sub be indentical. Not wanting to spend that $ right now.

" Ok, makes sense. Our installer was adamant a second sub be indentical. Not wanting to spend that $ right now."

In his defense, it would be ideal but for now use what you have.

Bill

Bill, thanks. The sub that came with the speaker package is a small six inches. Our existing sub is an Energy 8 inch. I'm currently trying to find someone reasonably priced one on the used market so we can have a matching pair.