BassBox Pro - Ljudia

By Magnus J, Ljudia
Email, tech@ljudia.com
Box Properties
--Description--
Name: Closed Optimal
Type: Vented Box
Shape: Prism, slanted front
--Box Parameters--
Vb = 58,31 liters
V(total) = 60,92 liters
Fb = 29,76 Hz
QL = 6,772
F3 = 27,19 Hz
Fill = minimal
--Vents--
No. of Vents = 1
Vent shape = round
Vent ends = one flared
Dv = 69, mm
Lv = 170, mm
E
D
B
H
G
C
A
--External Dimensions--
A = 364, mm
B = 614, mm
C = 417,2 mm
D = 339,8 mm
E = 372,4 mm
--Internal Dimensions--
A = 320, mm
B = 570, mm
C = 368, mm
D = 300, mm
E = 327,1 mm
--Wall Thickness--
Front = 22, mm
Side = 22, mm
--Angles--
G = 102,°
H = 78,°
Driver Properties
--Description--
Name: MGR FAT-104
Type: Standard one-way driver
Company: Zachry
Piston: PP
Frame: Steel
Voice Coil: Kapton
Magnet: Ferrite
--Configuration--
No. of Drivers = 1
--Mechanical Parameters--
Fs = 38,72 Hz
Qms = 5,94
Vas = 30,21 liters
Cms = 0,22 mm/N
Mms = 77,06 g
Rms = 3,145 kg/s
P-Dia = 200, mm
Sd = 310,9 sq.cm
--Electrical Parameters--
Qes = 0,61
Re = 3,6 ohms
Le = 2,46 mH
Z = 4, ohms
BL = 10,53 Tm
Pe = 100, watts
--Electromech. Parameters--
Qts = 0,55
no = 0,277 %
1-W SPL = 84, dB
File: MGR FAT-104.bb6

Page Two -- MGR FAT-104.bb6
n
d
e
top
front
n
h
g
sides
m
k
a
Box Parts
Box Shape: Slanted Front Prism
1 Top: height (d) = 344,5 mm
width (b) = 614, mm
thickness = 22, mm
cut angle (front edge only) = 12,°
1 Front: total height (e) = 331,8 mm
exposed surface height (n) = 327,1 mm
width (b) = 614,, thickness = 22, mm
top/bottom cut angles = ± 12,°
1 Back: height (a) = 320, mm
width (b) = 614,, thickness = 22, mm
1 Bottom: height (c) = 417,2 mm
width (b) = 614,, thickness = 22, mm
cut angle (front edge only) = 12,°
2 Sides: top depth (k) = 300, mm
height (a) = 320, mm
bottom depth (m) = 368, mm
front length (n) = 327,1 mm
thickness = 22, mm
Angle g = 102,°, Angle h = 78,°
a
back
--Driver Mounting--
Mounting: Flush
--Vent Parts--
1 Duct: outside diameter (o) = 75,35 mm
inside diameter (p) = 69, mm
length (q) = 170, mm
c
bottom
b
vent
o
p
q

Page Three -- MGR FAT-104.bb6
dB
Normalized Amplitude Response (dB-SPL/Hz)
BassBox 6 Pro
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
System Impedance (ohms/Hz)
ohms
80
BassBox 6 Pro
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Phase Response (deg/Hz)
deg
90
BassBox 6 Pro
0
-90
±180
90
0
-90
±180
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
msec
24
Group Delay (msec/Hz)
BassBox 6 Pro
20
16
12
8
4
0
-4
-8
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K