- Forum: DIY Speakers and Subs
With one sub having 4dB increased capacity, this is how it turns out:
Source SPL ref (dB) N Sum N (dB)
Sub 1 104.00 1.00 104.00
Sub 2 100.00 2.00 106.02
Sum SPL (dB) 111.09
With the 3 original equal:
Source SPL ref (dB) N Sum N...