Originally Posted by derrickdj1
This is my feeling joshjp. Another room and all your problems may disappear. The number of mode is fixed base on room dimension. This is one reason to consider another room.
I highly doubt its his room...he went from dual empires, to a XS30, to a XV30, then dual XV30's, and finally a Triax. Dual XV30's only netted him 105db and I think he mentioned right after he got the Triax it peaked around 113db. I do not care how bad the room response is, his room is small enough that all of those subs mentioned above should hit peaks way above reference. Fluctuating voltage is no good, I still say the subs were starving for power. I can hit 128-130db with 3 XV15's across the entire room except for one small spot directly in the center. This is a 1977 built home with a 15amp circuit...my can lights dim on peaks, I am sure there is more output to be had if I addressed the situation and put a 20amp circuit in. However there is no need for anymore output in this room as the windows and walls are taking a beating. When the time comes I can build a custom theatre, dual 20amp circuits with reinforced walls will be a priority. Can you put 4000watts rms on a 15amp line, hell yes, but you are not going to extract all of the output the sub has to offer before the amp goes into clipping.