What's the best subwoofer for low frequency tuning in car audio these days?
I've been installing and building audio systems for years. I can look at sub parameters and tell if their crap or not. The deal is, all the new subs advertise low resonant frequencies, yet the parameters typically point to a sealed box (typical 30-35 Hz roll off, or a ported box with tuning around 37-45 Hz. I remember when kicker comps and fosgate HE's used to tune awesome in ported box's to 32 Hz with 20-25 Hz roll off. and I know these new "boomers" want high SPL figures no matter wether of FULL range and has good SQ or not, but I'm trying to build a true SQ/SPL system will a full response from 20 Hz to 20 kHz. that's the human hearing range. currently it has Jbl 125 rms per channel 4 channel and Jbl power series components. sounds great. the Jbl power series subs, tuned a little high and rattled at "RMS" which means they are over rated. kickers junk all does the same, big boom at 45-50 Hz, nothing at anything less than 30-35 Hz. unless of course you drop the rms by half and stick 1 15 Ina 6 cuft ported box. I miss the good old school stuff. maybe there's companies out there still that produce good SUBwoofers, just I don't know about. crazily enough though, the pioneer champion pro series 12's had really good numbers on my box building program. bass shelf extended to 23 Hz and didn't hit -3db til 19 Hz with peak at 31 Hz. but pioneer? I heard their quality and durability went out the window back in 2000? anyway, any help would be nice. thanks.