User manual DLS NORDICA 12

[. . . ] In "open air" installations the power handling capacity is reduced by 30% from the nominal value. We don't recommend "open air" installations for these subwooers. Subwoofer enclosures, general Build your enclosure in a stable and airtight material. The size of the enclosure is decided by the speaker data. Sealed (closed) enclosures Sealed enclosures are easy to build. [. . . ] Use heavy bolts when fastening the sub to the enclosure baffle. Break-in period Allow the speaker to play for at least 15-20 hours. After this time the performance is correct. Enclosure damping Most enclosures should be damped inside with synthetic (acoustic) wool or damping mat (line). Attach the damping material on the wall opposite from the speaker and port. In a sealed box we recommend the use of damping wool. 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. Technical Assistance For technical assistance ask the shop where the product was sold or the distributor in your very country. You can always contact the DLS Helpdesk in Sweden on e-mail : info@dls. se Information can also be found on our WEB-site www. dls. se We follow a policy of continuous advancement in development. For this reason all or part of specifications & designs may be changed without prior notice. DLS Svenska AB P. O. Box 13029 SE-40251 Göteborg, Sweden Tel: +46 31 840060 Fax: +46 31 844021 E-mail: info@dls. se www. dls. se Technical specifications for DLS Ultimate Nordica 10 Nordica 10 Art. no Size Impedance Rec. range Voice coil, diameter Voice coil length X-max Cms SD Cone material Magnet, diameter Installation depth Mounting hole Outer diameter Weigth 10-25910 25 cm (10") 4 ohm 200 W min, 500 W max 25 Hz - 2 kHz 50 mm (2") 31 mm (1, 22") +-11, 5 mm (0, 45") 0, 16 mm /N 314 cm2 Aluminium 144 mm (5, 67") 140 mm (5, 51") 236 mm (9, 29") 265 mm ( 10, 43") 6, 7 kg (14, 77 lbs) Re, DC-resistance BL product Sensitivity (SPL 1W/1m) Resonant freq. (Fs) Vas (litre) Vas (ft3) Qms Qes Qts 3, 2 ohm 12 87, 0 dB 33, 7 Hz 22, 4 0, 79 9, 2 0, 65 0, 61 Technical specifications for DLS Ultimate Nordica 12 Nordica 12 Art. no Size Impedance Rec. range Voice coil, diameter Voice coil length X-max Cms SD Cone material Magnet, diameter Installation depth Mounting hole Outer diameter Weigth 10-25912 30 cm (12") 4 ohm 200 W min, 500 W max 20 Hz - 2 kHz 50 mm (2") 31 mm (1, 22") +-11, 5 mm (0, 45") 0, 203 mm/N 513 cm2 Aluminium 144mm (5, 67") 148 mm (5, 82") 282 mm (11, 1") 315 mm ( 12, 4") 7, 2 kg (15, 87 lbs) Re, DC-resistance BL product Sensitivity (SPL 1W/1m) Resonant freq. (Fs) Vas (litre) Vas (ft3) Qms Qes Qts 3, 3 ohm 14, 4 89, 7 dB 25, 4 Hz 75, 8 2, 67 10, 3 0, 49 0, 47 About the recommended enclosures The performance of these recommended enclosures will vary 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. In most cases the recommended enclusures on next page is the best choice. [. . . ] To prevent dirt from entering the voice coil gap, follow these instructions: - Keep the speaker in the plastic bag until it is time for installing the speaker in the box. - Clean the speaker box inside from dust and dirt before mounting the speaker, use a vaccum cleaner. Calculate your own enclosure Box volumes: When calculating the inner volume of an enclosure you just multiply the width (W) x height (H) x depth (D). A trapezoid box is calculated as this: Vol=width (W) x height (H) x upper depth (UD) + lower depth (LD) 2 W UD H LD Be sure to measure the inside dimensions. Recommended enclosure Nordica 10 Sealed enclosure: Wiring Volume Damping F3 : Singe voice coil : 19 / 0, 67 (litre / ft3) : Acoustic wool : 40, 8 Hz Outside box dimensions: Width : 480 mm (18, 89") Height : 350 mm (13, 77") Lower depth : 222 mm (8, 74") Upper depth : 122 mm (4, 8") Material : MDF 19 mm (3/4") Technical drawing for a 19 litre enclosure. The Nordica 10 works well in an 19 litre sealed enclosure. [. . . ]