Two vs four subwoofers for music playback

Duke >> Also, it is not necessary that all four subs be identical.  In fact in his own distributed multi-sub system, only one of Earl Geddes' subs extends all the way down.  <<

Thanks for that information, Duke! In my setup, only one of three goes to 15 Hz, and it seems to be enough. Since that was only one example, I hesitate to recommend such an approach to others. But now with Geddes, N = 2, much better!

Hi guys

Thanks for the answers.

I like very much the bass response I get from my current set up and room, but it took some work to get it.

I think that I can try adding just one more sub and experiment with different locations and orientacions before buying a pair.

I also have límited places to place them due to decor, so buying a pair is much riskier.

Adding 4 subs in a distributed bass array was the single biggest improvement in the overall sound of my system. Fixed most of the issues I had previously with small room acoustics and put a big smile on my face.

My cat loves it.

When using four subs, are they used in stereo mode or mono? I've always found 2 stereo subs sound more spacious than 1. 

Thanks,

aldnorab