Bryan Cox wrote: ↑Mon Dec 30, 2019 7:24 pm
I think it's because the S2012 Vd is only 270 cc. The 3012 LF Vd is 496 cc which means it moves almost 2x the air. You'd need two S2012 loaded cabs to equal the output of one 3012LF.
For me this means more amps and boxes which really costs (and weighs) more in the long run. Additionally, if you're running BFM tops, they'll outrun the subs if you don't use higher displacement drivers. That is unless you want to build double the boxes to keep up.
Anyone feel free to correct me. I'm sure I'm not entirely accurate.
Grant was talking about the S2012 being less output than the Delta 12LFA. Obviously either of them would be down compared to the 3012LF
at peak rated voltage.
You'll probably have to go back a couple pages to get the full context of the conversation. But, to sum it up...
I'm powering them with 30-35 volts and am aiming to maximize system sensitivity and minimize weight.
According to a conversation we had a couple months back, double the cab count with drivers of half the Vd will outperform half the cab count with drivers of twice the Vd
Example; two 3012LF cabs will not match the performance of 4 cabs loaded with Delta 12LFA or S2012.
viewtopic.php?f=1&t=25509&p=281245&hili ... rs#p281233
Yes, Vd on the S2012 is "only" 270. However, for the Delta 12LFA, Vd is 243. Four of each would put the Delta 12LFA at a 108 cm³ deficit.
Something will always outrun something else. I'm not too worried about the DR's being capable of outrunning the subs as long as the subs are capable of meeting the requirements of the venue with ample headroom. Doesn't bother me at all if the tops have even more headroom.