BassBox Pro - Ljudia
BassBox Pro - Ljudia
BassBox Pro - Ljudia
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By Magnus J, <strong>Ljudia</strong><br />
Email, tech@ljudia.com<br />
Box <strong>Pro</strong>perties<br />
--Description--<br />
Name:<br />
Type: Vented Box<br />
Shape: Prism, square (optimum)<br />
--Box Parameters--<br />
Vb = 111,1 liters<br />
V(total) = 121,1 liters<br />
Fb = 40,09 Hz<br />
QL = 6,366<br />
F3 = 43,82 Hz<br />
Fill = minimal<br />
--Vents--<br />
No. of Vents = 2<br />
Vent shape = round<br />
Vent ends = one flared<br />
Dv = 103, mm<br />
Lv = 181,8 mm<br />
A<br />
B<br />
C<br />
--External Dimensions--<br />
A = 838,4 mm<br />
B = 532,7 mm<br />
C = 343,7 mm<br />
--Internal Dimensions--<br />
A = 800,4 mm<br />
B = 494,7 mm<br />
C = 305,7 mm<br />
--Wall Thickness--<br />
Front = 19, mm<br />
Side = 19, mm<br />
Driver <strong>Pro</strong>perties<br />
--Description--<br />
Name: FL-15LF<br />
Type: Standard one-way driver<br />
Company: P. Audio System Co., Ltd.<br />
--Configuration--<br />
No. of Drivers = 1<br />
--Mechanical Parameters--<br />
Fs = 45, Hz<br />
Qms = 7,<br />
Vas = 108, liters<br />
--Electrical Parameters--<br />
Qes = 0,46<br />
--Electromech. Parameters--<br />
Qts = 0,432
Page Two<br />
c<br />
top & bottom<br />
Box Parts<br />
Box Shape: Optimum Square Prism<br />
1 Top, 1 Bottom: depth (c) = 343,7 mm<br />
width (b) = 532,7, thickness = 19, mm<br />
1 Front, 1 Back: height (a) = 800,4 mm<br />
width (d) = 494,7, thickness = 19, mm<br />
2 Sides: height (a) = 800,4 mm<br />
depth (c) = 343,7, thickness = 19, mm<br />
--Driver Mounting--<br />
Mounting: Flush<br />
b<br />
d<br />
c<br />
--Vent Parts--<br />
2 Ducts: outside diameter (e) = 109,4 mm<br />
inside diameter (g) = 103, mm<br />
length (h) = 181,8 mm<br />
a<br />
front & back<br />
sides<br />
vent<br />
e<br />
g<br />
h
Page Three<br />
dB<br />
Normalized Amplitude Response (dB-SPL/Hz)<br />
<strong>BassBox</strong> 6 <strong>Pro</strong><br />
6<br />
0<br />
-6<br />
-12<br />
-18<br />
-24<br />
-30<br />
-36<br />
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K<br />
System Impedance (ohms/Hz)<br />
ohms<br />
80<br />
<strong>BassBox</strong> 6 <strong>Pro</strong><br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K<br />
Phase Response (deg/Hz)<br />
deg<br />
90<br />
<strong>BassBox</strong> 6 <strong>Pro</strong><br />
0<br />
-90<br />
±180<br />
90<br />
0<br />
-90<br />
±180<br />
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K<br />
msec<br />
24<br />
Group Delay (msec/Hz)<br />
<strong>BassBox</strong> 6 <strong>Pro</strong><br />
20<br />
16<br />
12<br />
8<br />
4<br />
0<br />
-4<br />
-8<br />
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
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