Originally Posted by Timothy91
Have you ever experienced a pro audio 18" sub? It's got more than enough 20Hz production. It's not difficult for even a high efficiency 18" driver to produce 20Hz.
no... they don't.
I have a bit of experience -- and even some with 18" PA gear - having owned the Yamaha CW218V in the last year.http://www.avsforum.com/avs-vb/showthread.php?t=1175641
I've hosted 2 subwoofer meets in the last year (linked in my signature), and attended a third (huskeromaha's in Omaha). I've owned (in the last year) a pair of Infinity HPS-1000 subs, a pair of THX II Ultra rated Jamo D7subs, a pair of PB13 Ultra subs, a pa sub
- the Yamaha CW218V
with two 18" drivers, and now own a pair of JTR Captivator subs. I've heard just about all of the best of the best commercial and internet direct offerings since 2011 - some more than thrice.
Strictly between 2011 and Feb 2012 I’ve heard –
Dual DIY Dual Cinema F-20 (lilmike designed)
BIC America Formula F12
BIC V1220 pair
Klipsch RW-12D pair
DIY Rythmik 15"
Elemental Designs A7s-450
Motor City Custom Audio Dual MFW-15 Turbos pair
DIY MFW-15 dual opposed sealed in quad boxes (8 drivers)
DIY Custom Ottoman with four 15" drivers.
Chase Home Theater SS 18.2
Chase Home Theater SS 18.1 pair
Chase Home Theater 18.1VS pair
JTR Speakers Captivator Pro pair
JTR Speakers Captivator pair
JTR Speakers Captivator Sealed pair
JTR Speakers Orbit Shifter pair
JTR Speakers Growler
Seaton Submersive HP quintuple'd!?! :P (yes I heard five in the same room)
Danley Sound Labs DTS-10
SVS PB13 Ultra pair
HSU VTF-15H pair
Epike Empire (heard four in the same room)
Jamo D7sub pair
Infinity HPS-1000 pair
and even an Onkyo HTIB sub.
Previous to 2011, I’ve heard many different vendors and models at friends houses and home theatres, clubs, concerts, churches, etc. I’ve heard expensive velodynes to cheap JBL subs. I’ve heard multiple DIY type projects. I’ve heard (and loved) gads of different car audio equipment, up to some of the best types of subs like JL w7's and competition Orion drivers --because I and many of my friends were into car audio. Inexperienced, I am not. Though my very intentional exploration of all things subwoofer related started more heavily in 2011.
The Yamaha PA sub I owned (which would decimate that piece of junk you posted) wouldn't and didn't compete well with most of the actual home theater subs I've heard for home theater use. I too initially had high hopes they would -- they don't. Dollar for dollar the PA subs are fun and they were an eye opener for me the first time I listened to them (you can easily see my enthusiasm in the PA thread I linked above), but the more quality subs I've heard over the last year or so, the more my initial enthusiasm for the PA Sub idea has been curbed. Massive SPL above 35-40hz might be great for most any pre-21st century music, but it can't compete with a good subwoofer that has strong authority down to 15-20hz for modern music (electronica/dubstep) and movies (modern movies have increasingly more ultra low LFE). EQ won't do it, that driver isn't meant to output those low frequencies. A traditional PA sub will do nothing but make bad noises in trying. Give it a shot and see for yourself. I did.