I currently use a pair a dual 15" JBL Full range speakers that I built for my sound reinforcement system. I just bought a pair of JBL 2226's(4 Ohm version) to extend the frequency response of the system down to at least 35Hz. I want to make the most of the power I have to push them (750watts x 2 into 4 ohms stereo). I was thinking of a vented box of about 6 cubic feet tuned to 30Hz. But I guess I would need at least 1200 watts to get those monsters booming!!!! how about a folded horn?? Those tend to be efficient. Would that work for me?? Since designing horns are quite difficult, does any one know of a horn or vented box that will have those woofers thumping????

-Thanks alot
-Don

P.S. Answer Soon!!! JBL Rules!!!!

Wayne has his own good plans for it Pi style..

Caution,in an EBS tune like mine,175L 33hz tune,the power is limited,not 600watt rms ,i forget the actual value perhaps 300-400watt within Xmax..

I have modeled it in my own basshorn however the lab12woofer gave me what i wanted in a tiny box(its specificaly designed for horns)

The jbl2226h certainly is a beast at 97db efficiency also.See my response on my site,and see how i describe it :-)

Cheers
Mike.e

• my jbl2226

How about the 40Hz Horn on your site?? Seems fairly simple to build and looks like it would have a great kick. How about the plan below??? According to the designer, it can go down to about 50 hertz with excellent kick with the E140 (and I assume it might be able to go lower with the 2226) This Box seems extremely simple to build.... too simple for a folded horn. tell me what you think.

-Don

• 15

50hz is -8db.

I plan on building my 1 or 2 versions 40hz basshorn over christmas if possible.

il tell you if its good.

:-)

• other site with horns.

Based on that graph, your 40Hz horn would be pretty nice sounding at the bottom of my PA stack. Since I see how you fold it, I'll try to get it to fit the 2226. Hopefully I should get a somewhat decent result.
:>}

The horn is directly optimised for that woofer.(the lab12)

waynes knows about this and has his own horns.

:-)

Hey Wayne, How Do I Get the plans??