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Parameters

Box Parameters

Model #

AMV105M

AMV125M

Ported

Air Space (Cu. Ft.)

0.625

1.3

Port Size (Inches)

2 x 6.75

3 x 7.75

Port Vel.       (%)

31.5

21

 -3dB            (Hz)

36.5

35

Tune Freq.   (Hz)

40

38

Sub Disp. (Cu. Ft.)

0.1

0.15

Port Disp.(Cu. Ft.)

0.011

0.028

Total Vol. (Cu. Ft.)

0.75

1.5

Ported

Air Space (Cu. Ft.)

1.3

2.25

Port Size (Inches)

3 x 8.0

4 x 8.5

Port Vel.       (%)

15

12.5

 -3dB            (Hz)

30.5

30

Tune Freq.   (Hz)

37

37

Sub Disp. (Cu. Ft.)

0.1

0.15

Port Disp.(Cu. Ft.)

0.029

0.055

Total Vol. (Cu. Ft.)

1.5

2.5

Ported

Air Space (Cu. Ft.)

2.33

3.2

Port Size (Inches)

4 x 8

(2) 4 x 10.5

Port Vel.       (%)

8.75

6.5

 -3dB            (Hz)

29.5

29

Tune Freq.   (Hz)

36

38

Sub Disp. (Cu. Ft.)

0.1

0.15

Port Disp.(Cu. Ft.)

0.053

0.141

Total Vol. (Cu. Ft.)

2.5

3.5

EBP

61

49

Model #

Sealed

Minimum  (Cu. Ft.)

0.5

0.75

Maximum (Cu. Ft.)

1.25

2

SPL             (dB)

85

88

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.

All sealed boxes already include the displacement for the subwoofer.  

NR = (Not Recommended)

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.

Space Saver Bass Design

Everyday Bass Performer

                                 Ultimate SPL Bass Box  

(Not Designed for Competition)

AUDIOBAHN

UNIVERSAL SUBWOOFERS

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