Orion Car Audio HCCA COMPETITION HCCA154 - Manual (Page 25)

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HCCA122 & 124 Sealed Enclosures.
Note: These Enclosures are designed for sound quality and offer very low tuning
frequencies. If you are building a system where the goal is to listen to music, these
are the enclosures to build. They offer the best low frequency performance of all the
designs.
c
b
—Box Parts—
Box Shape – Square Prism
1 Top, 1 Bottom
depth (c) = 11.71 in. (297 mm)
width (b) = 27.42 in. (697 mm)
thickness = 1 in. (25.4 mm)
1 Front, 1 Back
height (a) = 15.71 in. (399 mm)
width (d) = 25.42 in. (645.7 mm)
thickness = 1 in. (25.4 mm)
2 Sides
height (a) = 15.71 in. (399 mm)
depth (c) = 11.71 in. (297 mm)
thickness = 1 in. (25.4 mm)
— Driver Mounting —
Mounting: Front
Top &
Bottom
a
d
Front &
Back
c
Sides
A
B
C
— External Dimensions —
A = 17.71 in. (450 mm)
B = 27.42 in. (697 mm)
C = 11.71 in. (297 mm)
— Internal Dimensions —
A = 15.71 in. (399 mm)
B = 25.42 in. (645.7 mm)
C = 9.709 in. (247 mm)
— Wall Thickness —
Front = 1 in. (25.4 mm)
Sides = 1 in. (25.4 mm)
Box Properties
— Description —
Type: Closed Box
Shape: Prism, Square (optimum)
— Box Parameters —
Vb
= 2 cu.ft
V(total) = 2.244 cu.ft
Qtc = 0.952
QL = 12.95
F3 = 32.93 Hz
Fill = none