TECHNICAL SPECIFICATIONS FOR DLS PERFORMANCE SUBWOOFERS
OA8 OA10D OA12D
Size 20 cm (8”) 25 cm (10") 30 cm (12")
Impedance 8 ohms 4 ohm 4 ohm
Nom. power (RMS) 150 W (max 250) 180 W (max 360) 210 W (max 400)
Freq. range 30 Hz - 2 kHz 25 Hz- 2 kHz 20 Hz-2 kHz
Sensitivity 85,1 dB 86,5 dB 88,4 db
Voice coil diameter 50 mm (2”) 50 mm (2”) 50 mm (2”)
Voice coil height 34 mm (1,34”) 34 mm (1,34”) 34 mm (1,34”)
Re 7 ohm 3,59 ohm 3,55 ohm
Voice coil inductance, 1 kHz 5,7 mH 1,72 mH 1,79 mH
BL product 15,46 11,96 12,53
X-max +- 9 mm (0,35”) +-9 mm (0,35”) +-9 mm (0,35”)
Suspension compliance CMS 375 183 167
SD- Effective piston area 214 cm
2
314,6 cm
2
452,3 cm
2
Resonant freq. (Fs) 32 Hz 39,9 Hz 37,8 Hz
Vas (liters) 23,96 25,5 48
Vas (ft
3
) 0,85 0,6 1,69
Qms 2,59 3,19 3,47
Qes 0,39 0,55 0,57
Qts 0,34 0,47 0,49
Cone material Coated non-compressed paper Coated non-compressed paper Coated non-compressed paper
Magnet weight 80 oz (2,27 kg) 80 oz (2,27 kg) 80 oz (2,27 kg)
Magnet diameter 4,72” (120 mm) 5,71" (145 mm) 5,71" (145 mm)
Installation depth 4,72” (120 mm) 6,02" (153 mm) 6,65" (169 mm)
Mounting hole 7,08” (180 mm) 9,45" (240 mm) 11,10" (282 mm)
Outer diameter 8,27” (210 mm) 10,43" (265 mm) 12,13" (308 mm)
Weigth 8,83 lb (3,8 kg) 12,13 lb (5,5 kg) 12,79 lb (5,8 kg)
RECOMMENDED ENCLOSURES FOR OA8, OA10D & OA12D
VENTED ENCLOSURE
Subwoofer Volume (liters/ft3) Port Damping F3 Fb
OA8 15 / 0,53 3” x 44 cm / 17” *** Line inside 45,1 Hz
OA10D 29 / 1,02 3” x 28 cm/11” Line inside 34,7 Hz 35,0 Hz
OA12D use sealed enclosure
*** It is impossible to have a 44 cm port inside a 15 liter enclosure! If you want to use the vented box just cut the
port tube 2,5 cm / 1” from the back wall for a good function. Doing so the subwoofer sees the port to be longer than
it is because the short distance between port and back wall has an influence on the air flow through the port.
SEALED ENCLOSURE
SEALED BANDPASS
OA10D
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
OA12D
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
OA8 sealed enclosure:
13 liters / 0,46 ft
3
F3 46,7 Hz
OA10D: use vented enclosure
OA12D 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
OA8, OA10D & OA12D
subwoofers are designed for
open air use but can also be
used in these enclosures.
To Next Page
Loading...
