Posted by Bill Epstein [ 12.75.71.221 ] on April 18, 2004 at 10:02:46:
I've got these 24- 87 cent PE 4" speaks (269-570)that are on all the boards. Also have the JBL M115 15" Badboys that were in the 3677s cabinets. I was thinking of a hybrid woofer array with just a 6" wide board sticking up from the back of the 18" or so square box that houses the woof.
Do the array speaks need a sealed enclosure? Open baffle would be okay? Could the woofer be mounted on an open baffle, too. Like a 24" wide by 72" tall piece of plywood with all 13 drivers on it? Or maybe a pyrimidal shape so the 4" guys have less baffle around them?
And wassup with the crossover numbers I'm getting on the Excel worksheet page? 100's of mH's and uF's with 8 ohm crosses at 125 Hz?
Or mebbe I don't need a crossover? Or being hopeless at Math I just don't get it?....... "Roman's plural,Hmmmm?
The M115
fs 42Hz
Re 5.3
qms 5.1
qes .42
qts .39
vas 225L
le 1.3mH
The PE 4"
Re 7.45 [ê ]
Fs 106.04 [Hz]
F1 81.75 [Hz]
F2 137.25 [Hz]
Zm 50.34 [ê]
D 0.00 [mm]
Qms 5.23
Qes 0.91
Qts 0.77
Bl 0.00 [N/A]
L1K 0.62 [mH]
L10K 0.23 [mH]
Ms 0.00 [g]
Vas 0.00 [l]
dBSpl 0.00 [dB]
Cms 0.00 [mm/N]
Ma 0.00 [g]
FsMa 0.00 [Hz]
[ ArraySpeakers Forum ] [ Help ]