Q-Class 41L782 - Subwoofer KICKER - Free user manual and instructions

USER MANUAL Q-Class 41L782 KICKER

Owner's Manual | English

L7 SUBWOOFER OWNER'S MANUAL

Models: 8L7 | 10L7 | 12L7 | 15L7

Authorized KICKER Dealer:

Purchase Date:

Speaker Model Number:

Speaker Serial Number:

Note: All specifications and performance figures 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.

SPECIFICATIONS

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	11.666
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, 148.048
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

Variable Cross-Section Elastomeric Surrounds (Increased Excursion) Stitched Surround & Cone for Maximum Bond Strength Mounting Hardware Covers for a Clean, Finished Installation Blue-Lace™ Spider for Improved Control & Durability Finned Aluminum Heat Sinks Around Voice Coil for Greater Heat Dissipation Laser Etched Polymer Components for Improved Bond HEA Optimized Motor Structures for Increased Power Handling

US Patent - www.kicker.com

WIRING

Use 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 amplification. 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 first voice coil. The terminals with solid-red and solid-black markings are for the second voice coil.

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

KKICKER amplifi er + amplifi er -

KIKCKER amplifi er+ amplifi er -

coil 1+ coil 1- coil 2+ coil 2-

Pro Tip: With a KICKER IQ amplifier, a pair of KICKER QS speakers, and a few KICKER cables, you're looking at a full system upgrade that will dominate! KICKER amplifiers and accessories make it easy to upgrade with your existing or stock source unit. Ask your dealer about KICKER amplifiers and speaker upgrades to complete your system!

Paralleled Voice Coils, Woofers in Parallel

Dual 2Ω Voice Coils in Dual Subwoofer configuration = 0.5Ω Load Dual 4Ω Voice Coils in Dual Subwoofer configuration = 1Ω Load

KIKICKER KIKICKER amplifi er+ amplifi er -

Series Voice Coils, Woofers in Parallel
Dual 2Ω Voice Coils in Dual Subwoofer Configuration = 2Ω Load Dual 4Ω Voice Coils in Dual Subwoofer Configuration = 4Ω Load

KIKICKER KIKICKER amplifi er + amplifi er -

WARNING: If you are using multiple subwooters that are wired in series to one another, each subwoofer must be in a separate chamber. If not, the subwooters could become damaged, resulting in loss of warranty.

SEALED 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 amplifier 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 flat 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 benefits of both designs: Minimum produces high impact bass, and maximum generates low bass frequency protection. 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 woster. AI sealed-enclosure airspace should be filled to 50% loose poly-fil (polyester fiberfill) stuffing. Do not make the airspace greater than the maximum enclosure volume recommendation.

Minimum Sealed

Model	Volume ft3 (L)	Power Handling
8L7	.4 (11.33)	500W RMS
10L7	.8 (22.65)	750W RMS
12L7	1 (28.32)	900W RMS
15L7	1.75 (49.56)	1200W RMS

Maximum Sealed

Model	Volume (L)	Power Handling
8L7 .75 (21.24)	500W RMS
10L7	1.25 (35.4)	750W RMS
12L7	2 (56.64)	900W RMS
15L7	6 (169.9)	1200W RMS

Panel Dimensions for Minimum Seated Enclosures using 3/4" (1.8cm) thick MDF

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

Simple line drawing of a cube with labeled faces A, B, and C (no text or symbols on the cube itself)

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 subwooters 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 efficiency and fits in many space-limited applications. Although it is the smallest recommended vented enclosure, the output from 30l x-80l x 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 efficient 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 (6.4x11)
Port Length, in (cm) 19.25 (48) 19.75 (50) 22.5 (57) 19.5 (50)
Power	Handling,	RMS	500	750
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)	3x18.25 (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

BOX BUILDING NOTES

Use 3/4" (1.9cm) or thicker MDF (medium density fiberboard) 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. And triangular bracing between each of the larger unsupported panels. See Figure 2.

Figure 2 D D D

D = 3" x 3" for 12L7, 15L7
D = 2" x 2" for 8L7, 10L7

18.3/4" (34.9 cm) 11 1/16" (28.1 cm) 9.5/16" (28.7 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) 7 1/4" (18.4 cm) 9.5/16" (23.7 cm) 11 1/16" (28. " cm") 18.3/4" (34.9 cm) 8L7 10L7 12L7 15L7

At the cubic feet (1) 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 final 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" (1.8cm) MDF:

[(13.25" + 1.5" total MDF wall thickness) x (2.5" + 1.5" total MDF wall thickness) x 22.5"] x (1 ft ^3 / 1728 in ^3 ) = .77 ft ^3

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

1.75 ft ^3 + .77 ft ^3 = 2.52 ft ^3 .

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 air low.

If you prefer an ultra-smooth bass response, you should loosely fill your L7 enclosure with poly-fll stuffing. 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-fll from exiting the port. The use of poly-fll will slightly decrease effiency, 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 specific 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.

Technical diagram of a 3D rectangular box with internal cutout and labeled dimensions X, Y, Z (no text or symbols beyond labels)

KKICKER®

MANUAL DEL PROPIETARIO DE ALTAVOZ SUBWOOFER L7

Modelos: 8L7 | 10L7 | 12L7 | 15L7

Simple line drawing of a cube with labeled faces A, B, and C (no text or symbols on the cube itself)

Technical line drawing of a 3D rectangular box with internal cutout and labeled dimensions X, Y, Z (no text or symbols beyond labels)

IMPORTANTE ADVERTENCIA DE SEGURIDAD: EL FUNCIONAMIENTO CONTINUO PROLONGADO DE UN AMPLICADOR DE MANERA DISTORSIONADA O RECORTADA PUEDE CAUSAR EL RECALENTAMIENTO DE SU SISTEMA DE AUDIO, POSIBLEMENTE PUEDE PRENDERSE FUEGO Y RESULTAR EN UN DAÑO SERIO A SUS COMPONENTES Y/O VEHÍCULO.

KKICKER®

L7 SUBWOOFER-BENUTZERHANDBUCH

Modelle: 8L7 | 10L7 | 12L7 | 15L7

Simple line drawing of a cube with labeled faces A, B, and C (no text or symbols on the cube itself)

Technical line drawing of a 3D rectangular box with internal components and dimension labels (X, Y, Z)

KICKER®

MANUEL D'UTILISATION DU CAISSON DE BASSES L7

Doubles bobines vocales 2.0 = Charge 1.0 Doubles bobines vocales 2.0 = Charge 4.0 Doubles bobines vocales 4.0 = Charge 2.0 Doubles bobines vocales 4.0 = Charge 8.0

Simple line drawing of a cube with labeled corners A, B, and C (no text or symbols beyond labels)

APPLICATIONS DU CAISSON VENTILÉ

Figure 2 D D D

Technical line drawing of a 3D rectangular box with internal cutout and labeled dimensions X, Y, Z (no text or symbols beyond labels)

AVERTISSEMENT IMPORTANT DE SÉCURITÉ : UN FONCTIONNEMENT CONTINU ET PROLONGÉ D'UN AMPLIFICATEUR EN DISTORSION OU EN SATURATION PEUT PROVOQUER LA SURCHAUFFE DE VOTRE SYSTÈME AUDIO, UN POTENTIEL DÉPART D'INCENDIE ET SÉRIEUSEMENT ENDOMMAGER VOS COMPOSANTS ET/OU VOTRE VÉHICULE.

Q-CLASS ACOUSTICS LIMITED WARRANTY

When purchased from an Authorized KICKER Dealer, KICKER warrants Q-Class KICKER products to be free from defects in material and workmanship for THREE (3) YEARS from date of original purchase with receipt. In all cases you must have the original receipt. Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction during the warranty period. Kicker will repair or replace (a) is discretion) the defective merchandise with equivalent merchandise at no charge. Warranty replacements may have cosmetic scratches and blomishes. Discontinued products may be replaced with more current equivalent products.

This warranty is valid only for the original purchaser and is not extended to owners of the product subsequent to the original purchaser. Any applicable implied warranties are limited in duration to a period of the excess warranty as provided herein beginning with the date of the original purchase at retail and no warranties, whether express or implied, shall apply to this product thereafter. Some states do not allow limitations on implied warranties; therefore, those exclusions may not apply to you. This warranty gives you specific legal rights; however, you may have other rights that vary from state to state.

WHAT TO DO IF YOU NEED WARRANTY OR SERVICE

Defective merchandise should be returned to your local Authorized Stillwater Designs (Kicker) Dealer for warranty service. Assistance in locating an Authorized Dealer can be found at www.kicker.com or by contacting Stillwater Designs directly. You can confirm that a dealer is authorized by asking to see a current authorized dealer window doca. If it becomes necessary for you to return defective merchandise directly to Stillwater Designs (Kicker), call the Kicker Customer Service Department at [phone] for a Return Merchandise Authorization (RMA) number. Package all defective items in the original container or in a package that will prevent shopping damage, and return to:

Stillwater Designs, 3°00 North Husband Road, Stillwater, OK 74075

The RMA number must be clearly marked on the outside of the package. Please return only defective components. The return of functioning items increases your return freight charges. Non- defective items will be returned freight-collect to you. Include a copy of the original receipt with the purchase date clearly visible, and a "proct-of-purchase" statement listing the Customers name. Dealer's name and invoice number, and product, purchased. Warranty expiration on items without proof-of-purchase will be determined from the type of sale and manufacturing date code. Freight must be prepaid; items sent: freight-collect, or COD, will be refused.

WHAT IS NOT COVERED?

This warranty is valid only if the product is used for the purpose for which it was designed. It does not cover:

Damage due to improper installation Freight Damage Subsequent damage to other components

Speakers damaged due to amplifier clipping or distortion

Any cost or expense related to the removal or reinstallation of product

Products returned without a Return Merchandise Authorization (RMA) number

Items previously repaired or modified by any unauthorized repair facility

Damage caused by exposure to moisture, excessive heat, chemical cleaners, and/or UV radiation

Damage through negligence, misuse, accident or abuse. Repeated returns for the same damage may be considered abuse

HOW LONG WILL IT TAKE?

Service performed by anyone other than KICKER Products with tampered or missing serial numbers The cost of shipping product to KICKER

SD stillwaterdesigns

Kicker strives to maintain a goal of one week for turnaround on service of all acoustics (subwoofers, midrange and coaxial drivers, tweezers, crossovers etc) returns. Delays may be incurred if lack of replacement inventory or parts is encountered. Failure to follow these steps may void your warranty. Any questions can be directed to the Kicker Customer Service Department at [phone].

P.O. Box 459 • Stillwater, Oklahoma 74078 • USA • [phone]

20141106-G-41L7

International Warranty

Contact your International Kicker dealer or distributor concerning specific procedures for your country's warranty policies.

Our goods come with guarantee that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods required or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.