User manual DLS IRIDIUM 15

[. . . ] Larger enclosures must have bracing inside to avoid vibrations. The enclosure must be completely airtight. Use sealing compound in all joints, also around the cable terminals. The size of the enclosure is decided by the speaker data. SEALED ENCLOSURES Sealed enclosures are easy to build. [. . . ] In a vented enclosure the sound from the speaker and the port work together creating a higher sound level. The sound from the port must come out in the same phase as from the speaker otherwise the result is bad. The size of the vented enclosure is decided by the speaker data just as for the sealed one. 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. Sometimes you need two or more ports in an enclosure. You can convert from one to two or more ports as long as the total port area is the same. All Iridium subwoofers works well in vented boxes. + - 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. Active filter Amplifier Connection in mono bridge mode with an active x-over. If you have a 1 ohm stable amplifier the voice coils should be connected in parallel for best performance (for example on a DLS monoblock). Valid from 2004-06-08 7654321 7654321 7654321 L C 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. DLS Iridium subwoofers can be used in bandpass enclosures. IMPORTANT! Think of the speaker weight when you install it. If you don´t mount it properly it can come loose. Technical specifications for DLS ULTIMATE Iridium 10 Iridium 10 Size Impedance Nom. power (RMS) Frequency range Voice coil, diameter Voice coil, length X-max Cms SD Cone material Magnet weight Magnet, diameter Installation depth Mounting hole Outer diameter Weight 25 cm (10") 2 x4 ohm 500 W (max 800) 25 Hz - 2, 5 kHz 75 mm (3") 40 mm (1, 57") +-14 mm (0, 55") 128, 96 346 cm2 Non-press paper 180 oz (5, 1 kg) 180mm (7, 08") 133 mm (5, 24") 236 mm (9, 29") 264 mm ( 10, 39") 9, 1 kg (20 lb) Data that can vary depending on the voice coil impedance: Single voice coil, 4 ohm 3, 6 ohm 4 ohm 9, 6 83, 1 dB 41, 3 Hz 21, 95 0, 77 3, 81 1, 15 0, 88 Voice coils in series to 8 ohm 6, 7 ohm 8 ohm 20, 4 85, 5 dB 39, 8 Hz 19, 8 0, 7 3, 9 0, 55 0, 48 Voice coils in parallel to 2 ohm 2 ohm 2 ohm 9, 65 85, 7 dB 41, 3 Hz 21, 95 0, 77 3, 81 0, 64 0, 55 Re, DC-resistance Z, impedance BL product Sensitivity Resonant freq. (Fs) Vas (litre) Vas (ft3) Qms Qes Qts Technical specifications for DLS ULTIMATE Iridium 12 Iridium 12 Size Impedance Nom. range Voice coil, diameter Voice coil, length X-max Cms SD Cone material Magnet weight Magnet, diameter Installation depth Mounting hole Outer diameter Weigth 30 cm (12") 2 x4 ohm 600 W (max 1000) 20 Hz - 2, 5 kHz 75 mm (3") 40 mm (1, 57") +-14 mm (0, 55") 154, 6 491 cm2 Non-press paper 180 oz (5, 1 kg) 220mm (8, 7") 150 mm (5, 9") 282 mm (11, 1") 310 mm ( 12, 2") 13 kg (28, 66 lb) Data that can vary depending on the voice coil impedance: Single voice coil, 4 ohm 3, 8 ohm 4 ohm 11, 52 86 dB 34, 7 Hz 52, 85 1, 866 3, 36 0, 85 0, 68 Voice coils in series to 8 ohm 7, 3 ohm 8 ohm 23, 5 88, 3 dB 33, 8 Hz 49, 15 1, 735 3, 77 0, 43 0, 39 Voice coils in parallel to 2 ohm 2, 2 ohm 2 ohm 11, 6 87, 3 dB 33, 8 Hz 49, 15 1, 735 3, 98 0, 53 0, 47 Re, DC-resistance Z, impedance BL product Känslighet (SPL vid 1W) Resonant freq. (Fs) Vas (litre) Vas (ft3) Qms Qes Qts Technical specifications for DLS ULTIMATE Iridium 15 Iridium 15 Size Impedance Nom. range Voice coil, diameter Voice coil, length X-max Cms SD Cone material Magnet weigth Magnet, diameter Installation depth Mounting hole Outer diameter Weigth 37, 5 cm (15") 2 x4 ohm 600 W (max 1000) 15 Hz - 2, 5 kHz 75 mm (3") 40 mm (1, 57") +-14 mm (0, 55") 73, 75 779 cm2 Non-press paper 200 oz (5, 67 kg) 220mm (8, 7") 176 mm (6, 93") 360 mm (14, 17") 390 mm ( 15, 35") 13, 4 kg (29, 54 lb) Data that can vary depending on the voice coil impedance: Single voice coil, 4 ohm 3, 7 ohm 4 ohm 17 86, 2 dB 33 Hz 63, 54 2, 24 3, 4 0, 84 0, 67 Voice coils in series to 8 ohm 7, 3 ohm 8 ohm 33, 3 89, 1 dB 33 Hz 63, 54 2, 24 3, 44 0, 43 0, 38 Voice coils in parallel to 2 ohm 1, 7 ohm 2 ohm 16, 9 89, 5 dB 33 Hz 63, 54 2, 24 3, 6 0, 39 0, 35 Re, DC-resistance Z, impedance BL product Sensitivity Resonant freq. (Fs) Vas (litre) Vas (ft3) Qms Qes Qts RECOMMENDED ENCLOSURES FOR Iridium10, Iridium12 & Iridium15 RUNNING-IN PERIOD Allow the speaker to play for at least 1520 hours. After this time the performance is correct. VENTED BOX F3 = approximative lower frequency for vented boxes in Hz. [. . . ] There must be some free space in front of the port, (between the rear seat and the port opening). In large vehicles like station wagons the best sound is achieved with the enclosure installed behind the rear seat with booth speaker and port directed backwards. Alternatively you can install the enclosure on one side of the luggage compartment. CALCULATE YOUR ENCLOSURE Box volumes: When caculating the volume of an enclosure you simply multiply the width (W) x heigth (H) x depth (D). Use measures in dm and you will get the answer in liters. [. . . ]