AudioBahn AW105M User manual

AW105M / AW125M

OWNER’S MANUAL

Aluminum Voice Coil Former

The voice coil former is black, anodized aluminum for highly efcient thermal transfer. This

allows winding high temperature copper wire in multiple layers for improved efciency. This

allows improved power handling by effectively dissipating heat.

Extended Pole Piece

The pole piece has been extended to provide a more linear magnetic eld for the operation

of the woofer. This lowers distortion and provides the woofer with better low frequency

response.

Vented Oversized Back Plate

The back plate has been stepped deeper to allow the woofer more excursion without bot-

toming out. Additionally, the back plate is vented with a radius aerodynamic back vent which

efciently and quickly circulates cool air around the voice coil. This allows for more excursion

and higher power handling without damaging the sub.

Voice Coil

The 4-Layer, edge wound voice coil design of the speaker allows for a variety of impedance

loads to be congured when matched with multiple subs. Please continue to the wiring dia-

gram portion of this manual for possible congurations you can run. The Natural Sound subs

have a dual 4 ohm voice coil operation.

Flat Spider

The speaker linear compliance is balanced trough the use of a at spider design. A at

spider provides symmetrical control of the voice coil through it’s cone excursion. Linear cone

excursion reduces harmonic distortion for improved sound quality. This allows for reduced

mechanical distortion for better sound quality.

Woofer Introduction Woofer Features

Parameters Box Parameters

Model # AMV105M AMV125M

Fs 34.3Hz 33.11Hz

Vas 0.56 1.11

Qes 0.68 1.35

Qms 3.27 6.26

Vas (Liters) 30.78 liters 84 Liters

Vas (Cu. Ft.) 1.09 Cu.Ft. 2.96 Cu.Ft.

Re 3.3 ohms 3.54 ohms

Le 4.67 mH 1.07 mH

Mmd 108 Grams 90.68 grams

Xmax +/- 7mm +/- 7 mm

RMS 300 watts 350 Watts

Sd 0.034 M2 0.048 M2

Freq. Resp. 28Hz-1kHz 25Hz-1kHz

Efficiency 90.4dB 90.8dB

EBP 51 25

Depth 4 3/4" 5 1/16"

Hole 9" 10 7/8"

Diamater 10 1/4" 12 1/2"

Displacement 0.10 Cu. Ft. 0.15 Cu.Ft.

Audiobahn Woofer Parameters

Vas does not represent the volume of a Box. Vas is just a parameter used when calculating a box.

An EBP of less then 45 is SUGGESTED for only a sealed box and greater then 65 for a ported box.

Dimensions

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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