| Re: Going LLT from sealed
Fire, based on the curve you posted 03 April at 10:39AM, I think you're getting excellent response in the lowest (15 - 30Hz) octave. If your SW system doesn't have a powerhandling limitation, and since you already own an amp with a lot of DSP in its frontend, in the amp I'd add a broad rise (starting at c. 2dB and working up gradually) centered at c. 15Hz and a cutoff slope below that, starting at maybe 12Hz.
Also consider running your amp and speakers in stereo, driving 2 groups of drivers with a net impedance no lower than 2 Ohms. If you've already wired the 4 drivers in 2 groups of 2 drivers in parallel, driving them in stereo will be easy. The output impedance of the amp's 2 channels is half of the amp bridged into mono. The amp will dump a kiloWatt per channel into 2 Ohms, so lack of power should NOT be a problem.
BTW I've ordered one of those 2000s for my new IB super-SW project; it should be here next week. I'll be using at least 6 and maybe 8 Sonic Craft SC300 12" woofers backing into my attic. I live in Phoenix, and it's already almost summer, so this'll be a fall project (in Phoenix, 'fall' starts in November), but I'm getting really excited about it in spite of having 2 new SVS PC-Ultras in the room.
|