Hi scott, sure, I have a preliminary plan that my friend did for it. it's not compete ,but major dimentions are there. It is not too difficult , It takes 3 1/2 sheets 5x5 baltic birch. If you have a table saw that will be helpfull and a skill saw for the larger panels ,bisket joiner ,epoxy for assembly. There is also a composit chamber that will need a mould made. I plan to make another pair ,and could take pics through the build if you're not in too much hurry. Basically it is new for me too and still a work inprogress but as is a very pleasing bass.
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just for the record I am now using the 2245 [single] in a 10 cubic foot box with a 15" x 5" port 15.3" long [tuned to 30 cycles] as per the jbl sight, and never felt the need for "LOWER" bass as I have never heard music[I don't do home theater] ,amplified or "otherwise" that had any thing close to a need for anything below that frequency .So I wanna build that backloaded horn . and when I can afford it I will build one more.and I don't think I turn it up as loud or don't need to: I am using a 60 wpc tube amp with 104 db [,fully horn loaded speakers with excellent lower midrange and upper bass but missing the bottom octave] .eff speakers.I bet i have never put more that 2 watts into this system.no need i just look for as close to effortless as i can afford to get .THX
yup Monster! Goliath ! 7 ft tall 30 inch deep 20 inch wide without the baffle extensions,but hey it's only plywood! 300$ worth of plywood will still get you farther than a million in speaker wire
Ya, all kidding aside, I posted all the build pictures so far on Photobucket so as not to clog or hijack Scott's thread , find them here...
Still a work in progress and I will post more as they come
Goliath Horn Photos by Bentwood_photos | Photobucket
regards
Still a work in progress and I will post more as they come
Goliath Horn Photos by Bentwood_photos | Photobucket
regards
How do you even get 10Hz to over drive a speaker? Even a huge pipe organ does not go this low?
Maybe 1812 cannon shots!!
Phil
Maybe 1812 cannon shots!!
Phil
Some of these will exercise from the single digit [infra]bass to all the way up:
saturn5cd.com
https://soundcloud.com/tomdanley
The New Master List of BASS in Movies with Frequency Charts - AVS Forum
GM
How would JBL 2240 {no foam surround} go in 18 cubic feet cabinets; I am not going to use BlueRay.
You can buy them cheap compared to some JBL. I have two.
Phil
You can buy them cheap compared to some JBL. I have two.
Phil
I think 18cuft too big for that driver, my sub calc shows it wants 2.48 cuft tuned to 53hz , try a Peavey 1801-4 it wants 19.2 cuft for 32hz if you want that size
your welcome Phil, Sub Calc ,I don't see any more,mine is quite old, but there seems to be a lot of shareware online probably more up todate and more features.
Andrew
Hi A Vanderkruk , I was curios if you had the exact design for that horn enclosure . The last time I was on the sight you were in process of building and were fine tuning a plan .I have been on the road for a while .So when I work out of town I don,t use the computer.Thank you for your time .Happy holidays to all. Scott Lowe
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