Yeah it' very similar but I'm a lil bit confused with hornresp since I'm new at it so I was wondering if to just try building one and see how it goes but more work also..
Each driver has the recomm. volume and port size for a bass reflex ,I am not sure if it will work positioned like this to minimize distortion.
Each driver has the recomm. volume and port size for a bass reflex ,I am not sure if it will work positioned like this to minimize distortion.
Thanks ,I do need it for outdoor djing
ah, that changes everything
simpleacoustic see this thread i posted it on thai forum last week. it may help u to design.
http://www.diyaudio.com/forums/subwoofers/111166-need-manifold-2-x-18-cabinet-plans.html
haha/
http://www.diyaudio.com/forums/subwoofers/111166-need-manifold-2-x-18-cabinet-plans.html
haha/
http://www.parts-express.com/pdf/264-385.pdf
Driver Properties
Name: 18SW2P
Type: Standard one-way driver
Company: Selenium Loudspeakers
Comment: Professional series
No. of Drivers = 2
Mounting = Standard
Wiring = Parallel
Fs = 36 Hz
Qms = 16.12
Vas = 6.32 cu.ft
Cms = 0.0884 mm/N
Mms = 221.1 g
Rms = 3.103 kg/s
Xmax = 6.5 mm
Xmech = 9.75 mm
P-Dia = 389.9 mm
Sd = 1194 sq.cm
P-Vd = 0.776 liters
Qes = 0.43
Re = 5.6 ohms
Le = 2 mH
Z = 8 ohms
BL = 25.52 Tm
Pe = 600 watts
Qts = 0.419
no = 1.872 %
1-W SPL = 94.87 dB
2.83-V SPL = 96.42 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box w/ Active HP Filter
Shape: Prism, square (optimum)
Vb = 8 cu.ft
Fb = 40 Hz
QL = 5.944
F3 = 41.93 Hz
Fill = minimal
No. of Vents = 2
Vent shape = rectangle
Vent ends = one flush
Hv = 10.67 in
Wv = 3 in
Lv = 8.487 in
-----------------------------------------
Active 12 dB/oct. HP Filter
Fx = 40 Hz
Qx = 1
Note the vent size, and the 40hz filter.
Driver Properties
Name: 18SW2P
Type: Standard one-way driver
Company: Selenium Loudspeakers
Comment: Professional series
No. of Drivers = 2
Mounting = Standard
Wiring = Parallel
Fs = 36 Hz
Qms = 16.12
Vas = 6.32 cu.ft
Cms = 0.0884 mm/N
Mms = 221.1 g
Rms = 3.103 kg/s
Xmax = 6.5 mm
Xmech = 9.75 mm
P-Dia = 389.9 mm
Sd = 1194 sq.cm
P-Vd = 0.776 liters
Qes = 0.43
Re = 5.6 ohms
Le = 2 mH
Z = 8 ohms
BL = 25.52 Tm
Pe = 600 watts
Qts = 0.419
no = 1.872 %
1-W SPL = 94.87 dB
2.83-V SPL = 96.42 dB
-----------------------------------------
Box Properties
Name:
Type: Vented Box w/ Active HP Filter
Shape: Prism, square (optimum)
Vb = 8 cu.ft
Fb = 40 Hz
QL = 5.944
F3 = 41.93 Hz
Fill = minimal
No. of Vents = 2
Vent shape = rectangle
Vent ends = one flush
Hv = 10.67 in
Wv = 3 in
Lv = 8.487 in
-----------------------------------------
Active 12 dB/oct. HP Filter
Fx = 40 Hz
Qx = 1
Note the vent size, and the 40hz filter.
Last edited:
Thanks,but I need translation,haha ,I've seen the ev manifold but wanted a different look.I need to know if a box looking just like this can be tuned by port or size to perform just as good but with the same SHAPE.Hope I don't sound silly.
I guess I'm too lazy and busy to do the math.
I guess I'm too lazy and busy to do the math.
for a groovy look and cone control one might try the 5181 K-coupler
http://img72.imageshack.us/img72/825/gaussbracing.jpg
diy version with 18" JBL
http://img72.imageshack.us/img72/825/gaussbracing.jpg
diy version with 18" JBL
Last edited:
An externally hosted image should be here but it was not working when we last tested it.
Code:
ID=28.00
Ang=2.0 x Pi
Eg=2.83
Rg=0.01
Fta=13.66
S1=0.01
S2=1560.08
Par=35.56
F12=0.00
S2=1560.08
S3=2590.32
Par=23.50
F23=0.00
S3=0.00
S4=0.00
L34=0.00
F34=0.00
S4=0.00
S5=0.00
L45=0.00
F45=0.00
Sd=1194.00
Bl=25.56
Cms=8.81E-05
Rms=3.11
Mmd=198.15
Le=4.26
Re=5.60
OD=2S
Vrc=231.00
Lrc=20.00
Ap=696.77
Lpt=17.78
Vtc=0.00
Atc=0.00
Pmax=100
Xmax=5.0
Comment=18SW2P Ctrl+O=23.5
Attachments
Last edited:
That zip file is damaged.
Anyway, it's only a horn above 100hz, probably has a nice peak between 150hz~200hz.
"Thanks,but I need translation,haha"
You didn't give a port dimension in your first post. I figured it out for you, 10-5/8" tall, 3" wide, by 8-1/2" deep.
Use a 40hz high-pass filter, with a Q=1 if adjustable.
Anyway, it's only a horn above 100hz, probably has a nice peak between 150hz~200hz.
"Thanks,but I need translation,haha"
You didn't give a port dimension in your first post. I figured it out for you, 10-5/8" tall, 3" wide, by 8-1/2" deep.
Use a 40hz high-pass filter, with a Q=1 if adjustable.
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