Directed Audio 23104 STUDIO, STUDIO 23108, STUDIO 23124, STUDIO 23128 Installation Manual
SYMMETRICALLY TUNED SEALED / VENTED BANDPASS BOX
D
A
B
STUDIO 23104
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
23104 .33 .18 3 17.2 71 0 NARROW 1 CONVENTIONAL
23104 .48 .27 3 17.2 60 0 MEDIUM 1 CONVENTIONAL
23104 .73 .37 3 17.2 51 0 WIDE 1 CONVENTIONAL
23104 .24 .16 3 11.5 85 3 NARROW 1 CONVENTIONAL
23104 .33 .25 3 11.5 71 3 MEDIUM 1 CONVENTIONAL
23104 .46 .35 3 11.5 61 3 WIDE 1 CONVENTIONAL
23104 .25 .23 3 7.5 84 6 MEDIUM 1 CONVENTIONAL
23104 .32 .33 3 7.5 72 6 WIDE 1 CONVENTIONAL
23104 .26 .32 3 5.5 81 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:
Displacement of the port is accounted for in the vented box. These box sizes do not need to be adjusted for
displacement.
All box sizes are adjusted to account for the displacement of the woofer(s) to be in the sealed box(es).
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
STUDIO 23104
A or 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
23104 .33 .33 4 14.3 71 0 NARROW 2 CONVENTIONAL
23104 .48 .5 4 14.3 60 0 MEDIUM 2 CONVENTIONAL
23104 .73 .7 4 14.3 51 0 WIDE 2 CONVENTIONAL
23104 .24 .3 4 9.25 85 3 NARROW 2 CONVENTIONAL
23104 .33 .46 4 9.25 71 3 MEDIUM 2 CONVENTIONAL
23104 .46 .66 4 9.25 61 3 WIDE 2 CONVENTIONAL
23104 .25 .44 4 5.7 84 6 MEDIUM 2 CONVENTIONAL
23104 .32 .64 4 5.7 72 6 WIDE 2 CONVENTIONAL
23104 .26 .62 4 3.9 81 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
STUDIO 23104
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
23104 .2 .33 3 36.5 71 0 NARROW 2 ISOBARIC
23104 .28 .37 3 36.5 60 0 MEDIUM 2 ISOBARIC
23104 .4 .42 3 36.5 51 0 WIDE 2 ISOBARIC
23104 .21 .32 3 25.2 71 3 MEDIUM 2 ISOBARIC
23104 .27 .37 3 25.2 61 3 WIDE 2 ISOBARIC
23104 .2 .34 3 17.2 72 6 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
STUDIO 23108
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
23108 .32 .12 3 17.5 70 0 NARROW 1 CONVENTIONAL
23108 .47 .28 3 17.5 59 0 MEDIUM 1 CONVENTIONAL
23108 .68 .38 3 17.5 50 0 WIDE 1 CONVENTIONAL
23108 .24 .17 3 11.75 83 3 NARROW 1 CONVENTIONAL
23108 .33 .25 3 11.75 70 3 MEDIUM 1 CONVENTIONAL
23108 .45 .35 3 11.75 60 3 WIDE 1 CONVENTIONAL
23108 .24 .24 3 7.7 83 6 MEDIUM 1 CONVENTIONAL
23108 .32 .34 3 7.7 71 6 WIDE 1 CONVENTIONAL
23108 .26 .33 3 5.7 79 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 two ohms wired parallel.
© Copyright 2002 by Directed Electronics, Inc. All rights reserved.
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