TECHNICAL SPECIFICATIONS FOR DLS CLASSIC SUBWOOFERS
OA10
OA12
Size
25 cm (10")
30 cm (12")
Impedance
4 ohm
4 ohm
Nom. power (RMS)
180 W (max 360)
210 W (max 400)
Freq. range
25 Hz- 2 kHz
20 Hz-2 kHz
Sensitivity
86,5 dB
88,4 db
Voice coil diameter
50 mm (2”)
50 mm (2”)
Voice coil height
34 mm (1,34”)
34 mm (1,34”)
Re
3,59 ohm
3,55 ohm
Voice coil inductance, 1 kHz
1,72 mH
1,79 mH
BL product
11,96
12,53
X-max
+-9 mm (0,35”)
+-9 mm (0,35”)
Suspension compliance CMS
183
167
SD- Effective piston area
314,6 cm
2
452,3 cm
2
Resonant freq. (Fs)
39,9 Hz
37,8 Hz
Vas (liters)
25,5
48
Vas (ft
3
)
0,6
1,69
Qms
3,19
3,47
Qes
0,55
0,57
Qts
0,47
0,49
Cone material
Coated non-compressed paper Coated non-compressed paper
Magnet weight
80 oz (2,27 kg)
80 oz (2,27 kg)
Magnet diameter
5,71" (145 mm)
5,71" (145 mm)
Installation depth
5,35" (136 mm)
6" (153 mm)
Mounting hole
9,37" (238 mm)
11,10" (282 mm)
Outer diameter
10,55" (268 mm)
12,28" (312 mm)
Weigth
11,68 lb (5,3 kg)
12,35 lb (5,6 kg)
RECOMMENDED ENCLOSURES FOR OA10 & OA12
VENTED ENCLOSURE
Subwoofer Volume (liters/ft3)
Port
Damping
F3
Fb
OA10
vol: 29 / 1,02
3” x 28 cm/11”
Line inside
34,7 Hz
35,0 Hz
OA12
use sealed enclosure
SEALED ENCLOSURE
SEALED BANDPASS
OA10
Vb1
Vb2
Port Vb2
11,96
13,35
1x10,2x46 cm
0,42 ft
3
0,47 ft
3
1x4"x18,1" (US)
F3 Vb1: 42,9 Hz, Vb2: 102,1 Hz
OA12
Vb1
Vb2
Port Vb2
31,68
52,88
3x10,2cm x21 cm
1,12 ft
3
1,87 ft
3
3 x 4" x 8,26" (US)
F3 Vb1: 48,2 Hz, Vb2: 89,6 Hz
Vb1=rear, Vb2=front
OA10: use vented enclosure
OA 12 sealed enclosure:
39 liters / 1,38 ft
3
F3: 49,4 Hz
or if you want a smaller box:
27 liters / 0,95 ft
3
The speaker is installed in Vb1
playing into chamber Vb2 where
the port(s) are installed.
F3
= approximative lower frequency for
vented boxes in Hz. Often called F-3 dB point
= the point where the power is 50% lower.
Fb
= Box resonant frequency
OA10 & OA12 subwoofers
are designed for open air use
but can also be used in these
enclosures.
