2003 Audiobahn Woofer Paramaters
Model # AW1008T AW1208T AW1508T
Vas does not represent the volume of a Box. Vas is just a paramater used when calculating a box. Fs 35.1 Hz 28.9 Hz 28.4 Hz Qts 0.43 0.31 0.32 Qes 0.49 0.36 0.36 Qms 3.3 2.16 2.95 Vas (Liters) 12 Liters 33 Liters 88 Liters Vas (Cu. Ft.) 0.4 Cu. Ft. 1.2 Cu.Ft. 3.1 Cu.Ft. Re 1.85 ohms 1.85 ohms 1.90 ohms Le 1.4 mH 1.55 mH 2.45 mH Mmd 240 Grams 239 grams 272 grams Xmax +/-20 mm +/-20 mm +/-20 mm RMS 1000 watts 1500 Watts 2000 watts Sd 0.031 M2 0.044 M2 0.075 M2 Freq. Resp. 22Hz-500Hz 20Hz-500Hz 18Hz-500Hz Efficiency 90 dB 91 dB 89 dB An EBP of less then 45 is SUGGESTED for only a sealed box and greater then 65 for a ported box.

Dimensions

Depth Hole Diamater Displacement 6 1/4" 9 1/4" 10 7/8" 0.22 Cu. Ft. 7" 11 1/8" 12 3/4" 0.27 Cu.Ft. 8 1/4" 14" 15 1/2" 0.47 Cu.Ft.

Revised November 7, 2002

2003 Audiobahn Box Specifications
All ports listed are circle ports unless otherwise stated. Surface area of a circle port = (3.14) X (radius) (squared) Remember to build your box to the total volume, not just air space, as total volume includes all displacement.

Model #

AW1008T

AW1208T

AW1508T

Space Saver Bass Design

Ported
Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 0.x 6.75 56.40 0.22 0.01 0.75 1.x 6.75 39.40 0.27 0.024 1.5 1.x 10 34.96 38.0.47 0.067 2

Everyday Bass Performer

Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 1.x 7.25 27.8 31.0.22 0.027 1.5 2.x 7.25 22.61 32.0.27 0.047 2.5 2.65 (2) 3 x 8 29.01 33.0.47 0.053 3

Ultimate SPL Bass Box

Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 2.35 4x8 15.36 0.22 0.053 2.5 3.15 (2) 4 x 13 10.35 0.27 0.181 3.5 3.55 (2) 4 x 11.25 15.35 0.47 0.153 4
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. 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.

Sealed

Minimum (Cu. Ft.) Maximum (Cu. Ft.) SPL (dB)

0.82.2

0.5 1.25 85.5

0.75 1.5 89.4

All sealed boxes already include the displacment for the subwoofer. NR = (Not Recommended)

Revised January 28, 2003