As I've said many times, my 24 is dual 1-ohm DC, and my fp20k drives it just fine.
Originally Posted by NiToNi
Here is four of [email protected]
3,400W each or 13,600W
Deduct 10 dB for 10ft listening distance, 4-6 dB for baffle step and full space, 2-3 dB for power compression etc and it is not that extreme.
A room is not full space, in-room should be louder than the box model it won't lose that 6db. The other stuff yes. I'd be more worried about room nulls.
data-bass shows 18% distortion at 78volts, which is 2900watts @ 2.2ohms which appears to be about the maximum you'd ever want to send to it long-term.
if that model is correct it spends most of it's time above 5ohms where the power will be cut in half.
and near the impedance peak the watts will be only a handful.
He noted that a single 109v sweep needed a 10-15minute cool-down period, although it did "survive" that 4kW sweep he mentioned.
The 14k does close to 7kW @ 2ohm so it should be able to send it to the moon and back.
A single 20k should be able to handle that, although a pair of 14k's would be about ~3db or so louder (but only at the point where the woofer melts though...)
The difference between 9kW and 18kW is only 3db, or 2kW vs 4kW also 3db. So you wouldn't be missing much....
I guess you have to ask yourself how much is 3db worth to you: double the shipping and double the fan noise and double the rack space, double the room heat, double the idle power-draw, and nearly double the cost?
The 22k isn't 2-ohm stable (at all), so I would avoid that one in this application.
I've pushed my iTech 1ohm bridged and stereo 0.5ohm... it "worked", but it is FOR SURE more-happy doing 2-4ohm instead.