User manual DLS OA12

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[. . . ] When installed "open air" the power handling capacity is reduced with 30% from the nominal value. We dont recommend "open air" installations except for OA10 and OA12 which are designed for open air installations. W308B, W310B, W312B OA10, OA12 SUBWOOFER ENCLOSURES, GENERAL Build your enclosure in a stable and airtight material. The size of the enclosure is decided by the speaker data. SEALED ENCLOSURES Sealed enclosures are easy to build. The speaker data such as Fs, Qts, Vas and X-max decides the size of the enclosure. [. . . ] The size of the vehicle often decides the practical size of the enclosure. A smaller enclosure has a higher resonant frequency than the larger one. The size of the enclosure should not be so big that the speaker plays below it´s own free air resonance (Fs), then it looses in power handling capacity. The port does not have to be fully inside the enclosure as long as the area and length are correct. You can convert from one to two or more ports as long as the total port area is the same. + C Connected with a 12 dB passive low-pass x-over = 10 mH coil in series and a bipolar capacitor of 300 microFarad in parallel. Crossover frequency is 95 Hz. 7654321 7654321 7654321 L BANDPASS ENCLOSURES In all bandpass enclosures the speakers are hidden inside the enclosure, all sound is coming out through the ports. There are different types of bandpass enclosures and they have in common that they are a bit more difficult to build. Most of our subwoofers can be used in bandpass enclosures TECHNICAL SPECIFICATIONS FOR DLS CLASSIC SUBWOOFERS W308B Size Impedance Nom. range Sensitivity Voice coil diameter Voice coil height Re Voice coil inductance, 1 kHz BL product X-max Suspension compliance CMS SD- Effective piston area Resonant freq. (Fs) Vas (liters) Vas (ft3) Qms Qes Qts Cone material Magnet weight Magnet diameter Installation depth Mounting hole Outer diameter Weigth 20 cm (8") 4 ohm 100 W (max 150) 30 Hz - 2 kHz 87, 1 db 50 mm (2") 22 mm (0, 87") 3, 1 ohm 1, 5 mH 7, 8 +-5 mm (0, 2") 478 214 cm2 36, 3 Hz 30, 5 1, 08 3, 55 0, 45 0, 40 Coated non-compress paper 40 oz (1, 13 kg) 4, 7" (120 mm) 3, 94" (100 mm) 7, 08" (180 mm) 8, 27" (210 mm) 6, 6 lb (3 kg) W310B 25 cm (10") 4 ohm 120 W (max 200) 25 Hz - 2 kHz 89 dB 50 mm (2") 22 mm (0, 87") 3, 4 ohm 1, 1 mH 11, 5 +-5 mm (0, 2") 349 314, 6 cm2 36 Hz 48, 6 1, 72 2, 49 0, 32 0, 28 Coated non-compress paper 40 oz (1, 13 kg) 5, 7" (145 mm) 4, 4" (112 mm) 8, 86" (225 mm) 10, 08" (256 mm) 8, 38 lb (3, 8 kg) W312B 30 cm (12") 4 ohm 150 W (max 250) 20 Hz - 2 kHz 91 dB 50 mm (2") 22 mm (0, 87") 3, 3 ohm 1, 1 mH 12, 22 +-5 mm (0, 2") 317 452, 3 cm2 30 Hz 115 4, 06 3, 26 0, 36 0, 34 Coated n-cp paper 50 oz (1, 42 kg) 6, 14" (156 mm) 5, 04" (128 mm) 10, 8" (274 mm) 12, 12" (308 mm) 9, 92 lb (4, 5 kg) RECOMMENDED ENCLOSURES FOR W308B, W310B & W312B RUNNING-IN PERIOD Allow the speaker to play for at least 15-20 hours. Subwoofer W308B W310B W312B Volume (liters/ft3) vol: 18 / 0, 64 vol: 28, 5 / 1, 0 vol: 41, 6 / 1, 47 F3 = approximative lower frequency for vented boxes in Hz. Fb = Box resonant frequency Damping Line inside Line inside Line inside F3 45, 9 Hz 48, 4 Hz 47, 1 Hz Fb 45 Hz 45, 0 Hz 40, 2 Hz VENTED ENCLOSURE Port 3" x 30 cm/ 11, 8" 3" x 14 cm/5, 5" 4" x 32 cm/12, 6" SEALED BANDPASS The speaker is installed in Vb1 playing into chamber Vb2 where the port(s) are installed. Vb1=rear, Vb2=front SEALED ENCLOSURE W310B Vb1 Vb2 port Vb2 22, 17 13, 98 1x10, 2x35, 5 cm 0, 78 ft3 0, 49 ft3 1x4"x14" (US) F3 Vb1: 40 Hz, Vb2: 118 Hz W308B Vb1 Vb2 port Vb2 8, 02 4, 93 1x6, 8x33 cm 0, 28 ft3 0, 17 ft3 1x3"x13" (US) F3 Vb1: 50 Hz, Vb2: 141, 9 Hz We don´t recommend the use of sealed enclosures for these subwoofers W312B Vb1 Vb2 port Vb2 32, 84 37, 23 2x10, 2x19 cm 1, 16 ft3 1, 32 ft3 2 x 4" x 7, 5" (US) F3 Vb1: 45 Hz, Vb2: 99 Hz TECHNICAL SPECIFICATIONS FOR DLS CLASSIC SUBWOOFERS OA10 Size Impedance Nom. range Sensitivity Voice coil diameter Voice coil height Re Voice coil inductance, 1 kHz BL product X-max Suspension compliance CMS SD- Effective piston area Resonant freq. (Fs) Vas (liters) Vas (ft3) Qms Qes Qts Cone material Magnet weight Magnet diameter Installation depth Mounting hole Outer diameter Weigth 25 cm (10") 4 ohm 180 W (max 360) 25 Hz- 2 kHz 86, 5 dB 50 mm (2") 34 mm (1, 34") 3, 59 ohm 1, 72 mH 11, 96 +-9 mm (0, 35") 183 314, 6 cm2 39, 9 Hz 25, 5 0, 6 3, 19 0, 55 0, 47 Coated non-compressed paper 80 oz (2, 27 kg) 5, 71" (145 mm) 5, 35" (136 mm) 9, 37" (238 mm) 10, 55" (268 mm) 11, 68 lb (5, 3 kg) OA12 30 cm (12") 4 ohm 210 W (max 400) 20 Hz-2 kHz 88, 4 db 50 mm (2") 34 mm (1, 34") 3, 55 ohm 1, 79 mH 12, 53 +-9 mm (0, 35") 167 452, 3 cm2 37, 8 Hz 48 1, 69 3, 47 0, 57 0, 49 Coated non-compressed paper 80 oz (2, 27 kg) 5, 71" (145 mm) 6" (153 mm) 11, 10" (282 mm) 12, 28" (312 mm) 12, 35 lb (5, 6 kg) RECOMMENDED ENCLOSURES FOR OA10 & OA12 OA10 & OA12 subwoofers are designed for open air use but can also be used in these enclosures. VENTED ENCLOSURE F3 = approximative lower frequency for vented boxes in Hz. Fb = Box resonant frequency Subwoofer Volume (liters/ft3) OA10 vol: 29 / 1, 02 OA12 use sealed enclosure Port 3" x 28 cm/11" Damping Line inside F3 34, 7 Hz Fb 35, 0 Hz SEALED BANDPASS The speaker is installed in Vb1 playing into chamber Vb2 where the port(s) are installed. Vb1=rear, Vb2=front SEALED ENCLOSURE OA10 Vb1 Vb2 Port Vb2 11, 96 13, 35 1x10, 2x46 cm 0, 42 ft3 0, 47 ft3 1x4"x18, 1" (US) F3 Vb1: 42, 9 Hz, Vb2: 102, 1 Hz OA10: use vented enclosure OA 12 sealed enclosure: 39 liters / 1, 38 ft3 F3: 49, 4 Hz or if you want a smaller box: 27 liters / 0, 95 ft3 OA12 Vb1 Vb2 Port Vb2 31, 68 52, 88 3x10, 2cm x21 cm 1, 12 ft3 1, 87 ft3 3 x 4" x 8, 26" (US) F3 Vb1: 48, 2 Hz, Vb2: 89, 6 Hz HINTS & TIPS FOR "DO IT YOURSELF" ENCLOSURE BUILDERS ABOUT THE RECOMMENDED ENCLOSURES The performance of these recommended enclosures will vay from vehicle to vehicle. It is more difficult to get a tight and well defined bass in a SEDAN vehicle because of the tightness between trunk and interior of the vehicle. - Volumes occupied by speaker and ports have already been added to the given enclosure volumes. Either cut the tube and glue it together in angle, or use factory made tube bends. The port opening inside the enclosure must not be closer to an interior wall than 3" (75 mm), otherwise it will have negative effects on the airflow. The particle board has a self resonant frequency of 14 Hz while the MDF has a resonant frequency of approx. [. . . ] Attach the damping material on the wall opposite from the speaker and port. In a vented enclosure the speaker and port should be on the same side, otherwise a fade-out of some frequencies can occour. In most vehicles, except for SEDAN cars, the speaker and port should be directed backwards for best result. THE SUBWOOFER speaker cone chassis voice coil magnet dust cap upper suspension WARRANTY SERVICE This speaker is covered by warranty, depending on the conditions in the country where it is sold. If the speaker is returned for service, please include the original dated receipt with the product. spider pole plate T-yoke Technical Assistance DLS Svenska AB P. O. [. . . ]

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