Reply To: Earthquake 21 – Building two 21″ Subwoofers

[123toid]

Interestingly enough, our rooms are similar size. My room is approximately 24 feet by 14.5 feet.  The main difference I have is a triangle shaped ceiling. I think two would be fine, but if you wanted to go with 4, there is nothing wrong with that.  Of course you could always build two and if you felt you wanted more, you could buy two more.  The only thing I would specifically say, is to make sure you get DSP.I would recommend 4 of the same either way.  ANd for that, I would do 4 SB21’s.

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