AudioBahn AWIS12J, Owner'S Manual

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Box Parameters
8
Model # AWIS12J AWIS15J
Ported
Air Space (Cu. Ft.) 1.45 1.9
Port Size (Inches) 4 x 11.75 4 x 10
Port Vel. (%) 16.73 15.96
-3dB (Hz) 34.69 37
Tune Freq. (Hz) 40 37
Sub Disp. (Cu. Ft.) 0.4 0.7
Port Disp.(Cu. Ft.) 0.097 0.083
Total Vol. (Cu. Ft.) 2 2.5
Ported
Air Space (Cu. Ft.) 2.3 2.7
Port Size (Inches) (2) 4 x 15 (2) 4 x 15
Port Vel. (%) 11.81 10.19
-3dB (Hz) 33.81 32.31
Tune Freq. (Hz) 40 37
Sub Disp. (Cu. Ft.) 0.4 0.7
Port Disp.(Cu. Ft.) 0.25 0.25
Total Vol. (Cu. Ft.) 3 3.5
Ported
Air Space (Cu. Ft.) 3.4 3.75
Port Size (Inches) (2) 4 x 10 (2) 4 x 11.25
Port Vel. (%) 15.18 12.72
-3dB (Hz) 32.27 35
Tune Freq. (Hz) 38 29.84
Sub Disp. (Cu. Ft.) 0.4 0.7
Port Disp.(Cu. Ft.) 0.167 0.184
Total Vol. (Cu. Ft.) 4 4.5
EBP 104 85
Model #
AWIS12J AWIS15J
Sealed
NR NR
Minimum (Cu. Ft.)
Maximum (Cu. Ft.)
SPL (dB)
All sealed boxes already include the displacement for the subwoofer. NR = (Not Recommended)
Remember to build your box to the total volume, not just air space, as total volume includes all displacement.
Audiobahn Box Specifications
An EBP of less then 45 is SUGGESTED for only a sealed box and greater then 65 for a ported box.
The larger a sealed box is, the lower the sub will play, but the less power it will handle. The smaller a sealed box is,
the higher the frequency the sub will play, and the more power it will handle.
All ports listed are circle ports unless otherwise stated. Surface area of a circle port = (3.14) X (radius) (squared)
Ultimate SPL Bass Box
(Not Designed for Competition)
Everyday Bass Performer
Space Saver Bass Design
A port velocity of 20% or under is good for everday use and 5% or under for SPL competition . Port velocity
translates to port noise, so the lower the number, the less port noise you will incur.