Directed Audio 2002 Pro + BP Tuning, DEI PRO+ 22104, DEI PRO+ 22108, DEI PRO+ 22124, DEI PRO+ 22128 Installation Manual
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SYMMETRICALLY TUNED SEALED / VENTED BANDPASS BOX
D
A
B
DEI PRO+ 22104
A B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN DB BANDWIDTH DRIVERS LOADING
22104 .61 .41 3 14.1 52 0 NARROW 1 CONVENTIONAL
22104 .93 .6 3 14.1 44 0 MEDIUM 1 CONVENTIONAL
22104 1.43 .81 3 14.1 37 0 WIDE 1 CONVENTIONAL
22104 .43 .39 3 9.3 62 3 NARROW 1 CONVENTIONAL
22104 .62 .57 3 9.3 52 3 MEDIUM 1 CONVENTIONAL
22104 .89 .79 3 9.3 44 3 WIDE 1 CONVENTIONAL
22104 .32 .37 3 6 74 6 NARROW 1 CONVENTIONAL
22104 .44 .56 3 6 62 6 MEDIUM 1 CONVENTIONAL
22104 .6 .78 3 6 53 6 WIDE 1 CONVENTIONAL
22104 .27 .36 3 4.3 83 8 NARROW 1 CONVENTIONAL
22104 .36 .55 3 4.3 69 8 MEDIUM 1 CONVENTIONAL
22104 .47 .77 3 4.3 59 8 WIDE 1 CONVENTIONAL
Box sizes are in cubic feet and vent measurements are in inches.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is four ohms.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
THREE CHAMBERED SYMMETRICALLY TUNED SEALED / VENTED
BANDPASS BOX
D
A
B
C
DEI PRO+ 22104
A & C B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN DB BANDWIDTH DRIVERS LOADING
22104 .61 .78 4 11.5 52 0 NARROW 2 CONVENTIONAL
22104 .93 1.15 4 11.5 44 0 MEDIUM 2 CONVENTIONAL
22104 1.43 1.59 4 11.5 37 0 WIDE 2 CONVENTIONAL
22104 .43 .75 4 7.3 62 3 NARROW 2 CONVENTIONAL
22104 .62 1.12 4 7.3 52 3 MEDIUM 2 CONVENTIONAL
22104 .89 1.56 4 7.3 44 3 WIDE 2 CONVENTIONAL
22104 .32 .72 4 4.3 74 6 NARROW 2 CONVENTIONAL
22104 .44 1.1 4 4.3 62 6 MEDIUM 2 CONVENTIONAL
22104 .6 1.54 4 4.3 53 6 WIDE 2 CONVENTIONAL
22104 .26 .71 4 2.8 83 8 NARROW 2 CONVENTIONAL
22104 .36 1.09 4 2.8 69 8 MEDIUM 2 CONVENTIONAL
22104 .47 1.53 4 2.8 59 8 WIDE 2 CONVENTIONAL
Box sizes are in cubic feet and vent measurements are in inches.
NOTE: Each sealed box (A & C) are the same volume.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is two ohms mono or four ohms stereo.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
ISOBARIC SYMMETRICALLY TUNED SEALED / VENTED BANDPASS BOX
D
A
B
DEI PRO+ 22104
A B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN DB BANDWIDTH DRIVERS LOADING
22104 .35 .42 3 30.3 52 0 NARROW 2 ISOBARIC
22104 .51 .51 3 30.3 44 0 MEDIUM 2 ISOBARIC
22104 .75 .62 3 30.3 37 0 WIDE 2 ISOBARIC
22104 .26 .38 3 20.9 62 3 NARROW 2 ISOBARIC
22104 .35 .47 3 20.9 52 3 MEDIUM 2 ISOBARIC
22104 .49 .58 3 20.9 44 3 WIDE 2 ISOBARIC
22104 .2 .35 3 14.1 74 6 NARROW 2 ISOBARIC
22104 .26 .45 3 14.1 62 6 MEDIUM 2 ISOBARIC
22104 .34 .56 3 14.1 53 6 WIDE 2 ISOBARIC
22104 .17 .34 3 10.8 83 8 NARROW 2 ISOBARIC
22104 .22 .43 3 10.8 69 8 MEDIUM 2 ISOBARIC
22104 .28 .54 3 10.8 59 8 WIDE 2 ISOBARIC
Box sizes are in cubic feet and vent measurements are in inches.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is two ohms mono bridged or four ohms stereo.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
SYMMETRICALLY TUNED SEALED / VENTED BANDPASS BOX
D
A
B
DEI PRO+ 22108
A B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN DB BANDWIDTH DRIVERS LOADING
22108 .64 .42 3 13 53 0 NARROW 1 CONVENTIONAL
22108 .99 .61 3 13 44 0 MEDIUM 1 CONVENTIONAL
22108 1.55 .84 3 13 38 0 WIDE 1 CONVENTIONAL
22108 .45 .4 3 8.6 63 3 NARROW 1 CONVENTIONAL
22108 .65 .59 3 8.6 53 3 MEDIUM 1 CONVENTIONAL
22108 .95 .82 3 8.6 45 3 WIDE 1 CONVENTIONAL
22108 .33 .38 3 5.4 75 6 NARROW 1 CONVENTIONAL
22108 .46 .58 3 5.4 63 6 MEDIUM 1 CONVENTIONAL
22108 .63 .81 3 5.4 54 6 WIDE 1 CONVENTIONAL
22108 .27 .38 3 3.9 84 8 NARROW 1 CONVENTIONAL
22108 .37 .57 3 3.9 70 8 MEDIUM 1 CONVENTIONAL
22108 .49 .8 3 3.9 60 8 WIDE 1 CONVENTIONAL
Box sizes are in cubic feet and vent measurements are in inches.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is eight ohms wired in series or four ohms stereo.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
THREE CHAMBERED SYMMETRICALLY TUNED SEALED / VENTED
BANDPASS BOX
D
A
B
C
DEI PRO+ 22108
A & C B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN dB BANDWIDTH DRIVERS LOADING
22108 .64 .8 4 10.6 53 0 NARROW 2 CONVENTIONAL
22108 .99 1.19 4 10.6 44 0 MEDIUM 2 CONVENTIONAL
22108 1.55 1.64 4 10.6 38 0 WIDE 2 CONVENTIONAL
22108 .45 .77 4 6.7 63 3 NARROW 2 CONVENTIONAL
22108 .65 1.16 4 6.7 53 3 MEDIUM 2 CONVENTIONAL
22108 .95 1.61 4 6.7 45 3 WIDE 2 CONVENTIONAL
22108 .33 .75 4 3.9 75 6 NARROW 2 CONVENTIONAL
22108 .46 1.14 4 3.9 63 6 MEDIUM 2 CONVENTIONAL
22108 .63 1.6 4 3.9 54 6 WIDE 2 CONVENTIONAL
22108 .27 .74 4 2.5 84 8 NARROW 2 CONVENTIONAL
22108 .37 1.13 4 2.5 70 8 MEDIUM 2 CONVENTIONAL
22108 .49 1.58 4 2.5 60 8 WIDE 2 CONVENTIONAL
Box sizes are in cubic feet and vent measurements are in inches.
NOTE: Each sealed box (A & C) are the same volume.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is four ohms mono or two ohms stereo.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
ISOBARIC SYMMETRICALLY TUNED SEALED / VENTED BANDPASS BOX
D
A
B
DEI PRO+ 22108
A B D D
WOOFER SEALED VENTED VENT VENT CENTER GAIN BOX NUMBER WOOFER
MODEL BOX BOX DIAMETER LENGTH FREQUENCY IN DB BANDWIDTH DRIVERS LOADING
22108 .36 .42 3 28.3 53 0 NARROW 2 ISOBARIC
22108 .54 .51 3 28.3 44 0 MEDIUM 2 ISOBARIC
22108 .82 .63 3 28.3 38 0 WIDE 2 ISOBARIC
22108 .26 .38 3 19.4 63 3 NARROW 2 ISOBARIC
22108 .37 .48 3 19.4 53 3 MEDIUM 2 ISOBARIC
22108 .51 .59 3 19.4 45 3 WIDE 2 ISOBARIC
22108 .2 .36 3 13 75 6 NARROW 2 ISOBARIC
22108 .27 .45 3 13 63 6 MEDIUM 2 ISOBARIC
22108 .35 .57 3 13 54 6 WIDE 2 ISOBARIC
22108 .18 .34 3 9.9 84 8 NARROW 2 ISOBARIC
22108 .22 .44 3 9.9 70 8 MEDIUM 2 ISOBARIC
22108 .29 .55 3 9.9 60 8 WIDE 2 ISOBARIC
Box sizes are in cubic feet and vent measurements are in inches.
Box Bandwidth:
Narrow –
Medium –
Wide –
3 dB down points are quarter octave above and below center frequency.
3 dB down points are third octave above and below center frequency.
3 dB down points are a half octave above and below center frequency.
Box Size: All box sizes are adjusted to account for the displacement of the woofer(s) to be in
the sealed box(es). Displacement of the port is accounted for in the vented box. These box sizes
do not need to be adjusted for displacement.
Impedance load to amplifier is four ohms mono bridged or two ohms stereo.
© Copyright 1998 by Directed Electronics, Inc. All rights reserved.
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