L782 - Subwoofer KICKER - Free user manual and instructions

USER MANUAL L782 KICKER

L7 SUBWOOFER OWNER’S MANUAL

Authorized KICKER Dealer: Purchase Date: Speaker Model Number: Speaker Serial Number: Model 8L7 10L7 12L7 15L7 Rated Impedance [Ω] 2 or 4 2 or 4 2 or 4 2 or 4 Fs [Hz] 47.2 37.5 34 26.3 Sensitivity [1W, 1m] 82.4 85.9 86.9 88.6 Qts 0.735 0.507 0.539 0.539 Qms 8.828 9.791 9.488 11.868 Qes 0.802 0.535 0.571 0.565 Re [Ω] 6.6 7.9 6.8 7 Vas [ft³, L] .322, 9.127 1, 28.32 1.92, 54.274 5.263, 149.048 Continuous Power Handling [Watts RMS] 500 750 900 1200 Outer Frame Dimension [in, cm] 8-13/16, 22.4 10-11/16, 27.2 12-9/16, 32 15-5/8, 39.6 Mounting Depth [in, cm] 5-7/16, 13.8 6-7/8, 17.5 7-7/8, 20 9 3/8, 23.9 Mounting Cutout [in, cm] 7-1/4, 18.4 9-5/16, 23.7 11-1/16, 28.1 13-3/4, 34.9 Frequency Response [Hz] 28 - 100 24 - 100 20 - 100 18 - 100 8L7 | 10L7 | 12L7 | 15L7Models: Note: All specifi cations and performance fi gures are subject to change. Please visit www.kicker.com for the most current information. To get the best performance from your new KICKER Subwoofer, we recommend using genuine KICKER Accessories and Wiring. Please allow two weeks of break-in time for the subwoofer to reach optimum performance. Sound Check: Poor bass response? Check the system phasing by reversing the positive and negative speaker connections on the subwoofer. If the bass improves, then the subwoofer was out of phase in reference to the rest of the audio system. 2015 L7 Subwoofers Manual Rev G.indd 22015 L7 Subwoofers Manual Rev G.indd 2 11/6/2014 9:25:57 AM11/6/2014 9:25:57 AMVariable Cross-Section Elastomeric Surrounds (Increased Excursion) Blue-Lace

Spider for Improved Control & Durability Finned Aluminum Heat Sinks Around Voice Coil for Greater Heat Dissipation FEA Optimized Motor Structures for Increased Power Handling Laser-Etched Polymer Components for Improved Bond Stitched Surround & Cone for Maximum Bond Strength Mounting Hardware Covers for a Clean, Finished Installation US Patent – www.kicker.com 2015 L7 Subwoofers Manual Rev G.indd 32015 L7 Subwoofers Manual Rev G.indd 3 11/6/2014 9:25:57 AM11/6/2014 9:25:57 AMUse the push terminals to wire your subwoofer in series or parallel. L7 subwoofers are available with dual 2Ω (ohm) or dual 4Ω voice coils. Both coils must be connected to a source of amplifi cation. The dual 2Ω woofer will generate a 1Ω load if the coils are wired in parallel or a 4Ω load in series. The dual 4Ω woofer will provide a 2Ω load wired in parallel or 8Ω load wired in series. The terminals with the white dots are for the fi rst voice coil. The terminals with solid-red and solid-black markings are for the second voice coil. coil 1 + coil 2+ coil 2-coil 1- WIRING Paralleled Wiring Series Wiring Dual 2Ω Voice Coils = 1Ω Load Dual 4Ω Voice Coils = 2Ω Load Dual 2Ω Voice Coils = 4Ω Load Dual 4Ω Voice Coils = 8Ω Load amplifi er

amplifi er + amplifi er - amplifi er - Pro Tip: With a KICKER IQ amplifi er, a pair of KICKER QS speakers, and a few KICKER cables, you’re looking at a full system upgrade that will dominate! KICKER amplifi ers and accessories make it easy to upgrade with your existing or stock source unit. Ask your dealer about KICKER amplifi ers and speaker upgrades to complete your system! 2015 L7 Subwoofers Manual Rev G.indd 42015 L7 Subwoofers Manual Rev G.indd 4 11/6/2014 9:25:57 AM11/6/2014 9:25:57 AMSeries Voice Coils, Woofers in Parallel Paralleled Voice Coils, Woofers in Parallel Dual 2Ω Voice Coils in Dual Subwoofer Confi guration = 2Ω Load Dual 4Ω Voice Coils in Dual Subwoofer Confi guration = 4Ω Load Dual 2Ω Voice Coils in Dual Subwoofer confi guration = 0.5Ω Load Dual 4Ω Voice Coils in Dual Subwoofer confi guration = 1Ω Load amplifi er

amplifi er + amplifi er - amplifi er - WARNING: If you are using multiple subwoofers that are wired in series to one another, each subwoofer must be in a separate chamber. If not, the subwoofers could become damaged, resulting in loss of warranty. 2015 L7 Subwoofers Manual Rev G.indd 52015 L7 Subwoofers Manual Rev G.indd 5 11/6/2014 9:25:57 AM11/6/2014 9:25:57 AMSEALED ENCLOSURE APPLICATIONS The L7 generates more sound pressure than an equivalently-sized round speaker and excels when used in the recommended sealed boxes. These sealed enclosure designs give the smoothest response with increased energy at the lowest frequencies, 20Hz–30Hz. These designs deliver massive amounts of highly-accurate bass and can be driven with punishing levels of amplifi er power. The high performance suspension system can operate in a larger sealed enclosure. This maximum enclosure volume application is ideal for ultra sound quality installations. The maximum enclosure generates a very fl at response curve and superbly extends the sub-bass response. L7 woofers perform well in any size sealed enclosure between the minimum and maximum volume recommendations. These systems will exhibit benefi ts of both designs: Minimum produces high-impact bass, and maximum generates low bass frequency protraction. Overall, the system will sound more like the recommended enclosure design it is closest to in enclosure volume. These enclosure recommendations have been calculated with the airspace inside the enclosure and include the displacement of the woofer. All sealed-enclosure airspace should be fi lled to 50% loose poly-fi l (polyester fi berfi ll) stuffi ng. Do not make the airspace greater than the maximum enclosure volume recommendation. Model Box Volume [ft³, L] Panel A [in, cm] Panel B [in, cm] Panel C [in, cm] 8L7 .4 (11.33) 11x11, 27.9x27.9 11x7.75, 27.9x19.69 9.5x7.75, 24.13x19.69 10L7 .8 (22.65) 13.5X13.5, 34.3X34.3 13.5x9.5, 34.3x24.13 12x9.5, 30.5x24.13 12L7 1 (28.32) 13.5X13.5, 34.3X34.3 13.5x12, 34.3x30.5 12x12, 30.5x30.5 15L7 1.75 (49.56) 16.5x16.5, 42x42 16.5x13.5, 42x34.3 15X13.5, 38.1X34.3 Model Volume ft

Panel Dimensions for Minimum Sealed Enclosures using 3/4” (1.9cm) thick MDF Minimum Sealed Maximum Sealed

2015 L7 Subwoofers Manual Rev G.indd 62015 L7 Subwoofers Manual Rev G.indd 6 11/6/2014 9:25:57 AM11/6/2014 9:25:57 AMBOX BUILDING NOTES Use 3/4” (1.9cm) or thicker MDF (medium density fi berboard) and seal the joints with silicone. Use the “template” inside your L7’s shipping carton to mark the mounting hole, then cut directly on the line. See Figure 1. These designs need internal bracing. Add triangular bracing between each of the larger unsupported panels. See Figure 2.

VENTED ENCLOSURE APPLICATIONS

These boxes are the enclosure of choice for outrageous bass, so if space is not a problem and you want to get the most from your L7, try one of these vented designs. L7 subwoofers will handle massive amounts of power in any of the recommended enclosures, minimum or maximum. The smaller enclosures are best for use in limited-space applications. The larger recommended enclosures will yield slightly more bass at the lowest frequencies. The vented minimum design increases bass effi ciency and fi ts in many space-limited applications. Although it is the smallest recommended vented enclosure, the output from 30Hz–80Hz will be considerably higher than that of a sealed box. The maximum vented design has even more output in this frequency band. The maximum vented enclosure is the largest and most effi cient design. Vented Compact 8L7 10L7 12L7 15L7 Box Volume, ft³ (L) + port displacement .66 (18.69) 1.25 (35.4) 1.75 (49.6) 3.0 (85) Port Opening Size, in x in (cm x cm) 1.5x9.5 (3.8x24) 2.5x11.25 (6.4x29) 2.5x13.25 (6.4x34) 2.5x16.25 (6.4x41) Port Length, in (cm) 19.25 (49) 19.75 (50) 22.5 (57) 19.5 (50) Power Handling, RMS 500 750 900 1200 Vented SQ 8L7 10L7 12L7 15L7 Box Volume, ft³ (L) + port displacement 1 (28.32) 2.25 (63.7) 3.25 (92) 6.0 (170) Port Opening Size, in x in (cm x cm) 2x9.5 (5.1x24) 3x11.25 (7.6x29) 3x13.25 (7.6x34) 3.5x16.25 (8.9x41) Port Length, in (cm) 21.25 (54) 18 (46) 14.5 (37) 13.75 (35) Power Handling, RMS 500 750 900 1200 2015 L7 Subwoofers Manual Rev G.indd 72015 L7 Subwoofers Manual Rev G.indd 7 11/6/2014 9:25:58 AM11/6/2014 9:25:58 AM8L7 10L7 12L7 15L7 13 3/4” (34.9 cm) 11 1/16” (28.1 cm) 9 5/16” (23.7 cm) 7 1/4” (18.4 cm) 13 3/4” (34.9 cm) 11 1/16” (28.1 cm) 9 5/16” (23.7 cm) 7 1/4” (18.4 cm) Figure 1 Cutout Dimensions Corner Radius: 8L7 - 1.5” (38.1mm) 10L7 - 1.5” (38.1mm) 12L7 - 1.75” (44.5mm) 15L7 - 1.7” (43.2mm)

Figure 2 D = 3” x 3” for 12L7, 15L7 D = 2” x 2” for 8L7, 10L7 2015 L7 Subwoofers Manual Rev G.indd 82015 L7 Subwoofers Manual Rev G.indd 8 11/6/2014 9:25:58 AM11/6/2014 9:25:58 AMAll the cubic feet (L) measurements in this manual include the displacement of the woofer. For the vented enclosures the displacement of the port must be calculated and added to the internal volume of the fi nal design. Use the outer dimensions of the vent and multiply “X x Y x Z”, and convert to cubic feet, for example the 12L7 vented Compact design’s external vent dimensions are, using 3/4” (1.9cm) MDF: [ (13.25” + 1.5” total MDF wall thickness) x (2.5” + 1.5” total MDF wall thickness) x 22.5”] x (1 ft

Add this number to the internal volume of the enclosure. The 12L7 is:

Due to the necessary length of these vents, you may want to fold the vent along the bottom and back walls. It will be impractical to use round vents for these designs. Do not install a vent opening against a solid surface, such as an internal brace, back-panel or trunk wall, seat or interior panel of your vehicle. The vent opening must remain unobstructed. Use the smallest dimension of the rectangular vent as the minimum amount of space between the vent opening and any solid surface to insure unrestricted airfl ow. If you prefer an ultra-smooth bass response, you should loosely fi ll your L7 enclosure with poly- fi l stuffi ng. Vented designs will require covering the end of the port (located inside the box) with grill cloth, chicken wire, or expanded metal to prevent the poly-fi l from exiting the port. The use of poly-fi l will slightly decrease effi ciency, but will deepen and extend the low frequency output. For more advice on box building, refer to your Authorized Kicker Dealer, or click on the Support tab on the Kicker homepage, www.kicker.com. Please e-mail [e-mail] or call Technical Support at [phone] for specifi c or unanswered questions.

WARNING: KICKER products are capable of producing sound levels that can permanently

damage your hearing! Turning up a system to a level that has audible distortion is more damaging to your ears than listening to an undistorted system at the same volume level. The threshold of pain is always an indicator that the sound level is too loud and may permanently damage your hearing. Please use common sense when controlling volume. IMPORTANT SAFETY WARNING – PROLONGED CONTINUOUS OPERATION OF AN AMPLIFIER IN A DISTORTED OR CLIPPED MANNER CAN CAUSE YOUR AUDIO SYSTEM TO OVERHEAT, POSSIBLY CATCHING FIRE AND RESULTING IN SERIOUS DAMAGE TO YOUR COMPONENTS AND/OR VEHICLE.