ENCLOSURE RECOMMENDATIONS
woofer-displacement:
box type
optimisation for:
loud
normal
low / definition
sealed
net box volume [Liter] *
20
35
100
free field SPL at 90 Hz [dB/Wm]
87,7
87
86,5
mech. power handling [Watt RMS]
200
200
150
low cut frequency (free flield) Flow [Hz]
42
37
28
vented
net box volume [Liter] *+**
35
50
80
port diameter x length [cm]
10 x 24
10 x 22
10 x 22
free field SPL at 90 Hz [dB/Wm]
91,5
90,1
88,5
mech. power handling [Watt RMS]
150
120
100
high cut frequency for subsonic filter[Hz]
35
32
27
power handling with subsonic filter [W]
250
250
200
low cut frequency (free flield) Flow [Hz]
45
34
25
single vented band pass
net box volume [Liter] * V1
12
18
28
net box volume [Liter] ** V2
20
20
20
port diameter x length [cm] in V2
12 x 18
12 x 26
12 x 36
free field SPL at 90 Hz [dB/Wm]
92
90
87,6
mech. power handling [Watt RMS]
250
200
150
low cut frequency (free flield) Flow [Hz]
46
37
30
V 1 V 2
double vented band pass
net box volume [Liter] * + ** V1
-
30
-
port diameter x length [cm] in V1
7 x 38
net box volume [Liter] ** V2
23
port diameter x length [cm] in V2
12 x 20
free field SPL at 90 Hz [dB/Wm]
91
mech. power handling [Watt RMS]
200
high cut frequency for subsonic filter[Hz]
24
power handling with subsonic filter [W]
250
V 1 V 2
low cut frequency (free flield) Flow [Hz]
35
*): add additional 1,5 L for woofer!
**): calculate and add volume displacement of port(s)
formula: outer diameter [dm] square times 3,14 devided by 4, times length [dm]
ports should be rounded (aeroports)! In cases where round tubes don't fit,
channels with same cross-section (rounded at both ends) may be built.
damping: sealed encl. Fill loosely with poly-padding, vented encl.: 2 walls covered by acoustic foam.
enclosure wall thickness: MDF/Multilayer: 19 to 22 mm. Woofer screwed by metric thread knock-in nuts.
Subsonic-Filter: high pass filter of 3rd order or higher
mounting size:
mounting hole diameter:
233 mm
mounting depth:
117 mm
magnet diameter:
134 mm
recomm. freeplay behind magnet:
> 20 mm
if flange gets lowered into baffle:
without -
grinding diameter:
258 mm
grinding depth:
9 mm
ALPINE SWE-1044E 25 cm Subwoofer
1,5 Liter
Интернет-магазин автозвука и автотоваров Винавто
winauto.ua
