JL Audio MX10IB3 User Manual

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owner’s manual


Marine Subwoofer

Thank you for choosing a JL Audio Marine Subwoofer.

With proper installation, your new speaker

will deliver years of listening pleasure.

We strongly recommend that you have your subwoofer installed by your authorized JL Audio dealer. The installation

professionals employed by your dealer have the necessary tools and experience to properly install this product. If you prefer to perform

your own installation, please read this instruction manual completely before beginning the process.















Subwoofer Physical Specifications


Nominal Diameter:

10 in. / 250 mm


Overall Diameter (A):

10.75 in. / 273 mm


Mounting Hole Diameter (B):

8.875 in. / 225 mm


Bolt Hole Circle (C):

9.706 in. / 247 mm


Motor Overmold Outer Diameter (D):

5.29 in. / 134 mm


Mounting Depth (E):

5.12 in. / 130 mm


Net Weight:

6.5 lbs. / 2.94 Kg


Driver Displacement:

0.04 ft3 / 1.13 litres


Subwoofer Parameters



Free Air Resonance (Fs):

41.84 Hz


Electrical “Q” (Qes):



Mechanical “Q” (Qms):



Total Speaker “Q” (Qts):



Equivalent Compliance (Vas):

1.29 ft3 / 36.53 litres


One-way,Linear Excursion (Xmax)*:

0.42 in. / 10.7 mm


Efficiency (1W/1m)**:

87.23 dB SPL


Effective Piston Area (Sd):

50.68 in² / 0.0327 m²


DC Resistance (Re):

3.957 ohm


Nominal Impedance:

4 ohm


Infinite Baffle Use:



Enclosure Use:

Yes (Sealed Only)


Power Handling (continuous):


*Xmax specifications are derived via one-wayvoice coil overhang method with no correction factors applied.

**Efficiency (1W/1m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder” !

We recommend the use of this speaker in a bi-amplifiedsystem usinghigh-qualitysatellite speakers and amplifiers. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.


Six #8 x 1 3/8-inch(35 mm) phillipspan-headstainless-steelscrews

Six #8 stainless-steelwashers


The diagram above shows the typical installation procedure into a fiberglass panel using the supplied hardware. Always follow proper safety procedures when working on a vessel. Before cutting, drilling or inserting any screw, check clearances on both sides of the planned mounting surface. Also check for any potential obstacles, such as wiring harnesses, fuel lines, hydraulic lines, etc. Use eye-protectionat all times and a dust mask and gloves when cutting.

1)Choose a flat mounting surface that has sufficient depth and air space behind it to accept the subwoofer.

2)Cut a 8.875-inch(225 mm) diameter hole.

3)Run the speaker cable to the mounting location.

4)Place the woofer in the hole and mark the screw hole locations using a sharp, pointed tool.

5)Remove the woofer and drill a pilot hole (see chart on next page) in each of the screw

locations. It is also advisable to use a hand-drivencountersink tool on each hole to further inhibitgel-coatcracking of fiberglass panels.

6)Connect the speaker wires and place the woofer, with its grille in place, into the opening

7)While holding the speaker firmly in its mounting location, evenly snug the mounting screws in a criss-crosspattern, then hand tighten in a crisscross pattern.

Non-standardinstallations may require different hardware. Always usemarine-grade,stainless-steelfasteners to ensure a secure, reliable installation.


A l l s p e c i f i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e .


! !


! !




While this speaker is designed to be water and spray resistant, it is not designed to be submerged or to withstand high-pressurewater spray. Please exercise care when washing your boat to avoid damaging your speaker. Do not install on submersibles, personal watercraft or any other vessel likely to be under water at any time.

Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performancespeaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.

When installing a subwoofer in your vessel, it is extremely important to secure it firmly. This applies not only to the woofer itself, but also the structure it is mounted to. If not firmly attached, the speaker can become a dangerous projectile in a collision. Please review the mounting information carefully and use the supplied marine-gradehardware to mount this product.



Fiberglass Thickness

Recommended Pilot Hole Drill Size



0.125 in. (3.18 mm) or less

7/64 in. (2.78 mm) pilot hole



foam core / fiberglass sandwich

7/64 in. (2.78 mm) pilot hole



larger than 0.125 in. (3.18 mm)

1/8 in. (3.18 mm) pilot hole






Recommended Sealed Design











External Dimensions





(net int.)

(Width xHeight xDepth)













18 in. x 18 in. x 14.5 in.




56.6 litres

457 mm x 457 x 368 mm







Sealed Design


NOTE: The MX10IB3 Marine Subwoofer is not










recommended for use in Ported Enclosures.

















































































The enclosure recommendations listed are external dimensions which assume the use of 3/4” (19mm) thick material. If you are using 5/8” (16mm) thick material, subtract 1/4” (6.5mm) from each dimension. Do not use any material with a thickness of less than 5/8” (16mm) as this may compromise the rigidity of the enclosure.

All enclosure volumes listed are net internal volumes! Box volume displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions listed have already taken this into account.


A l l s p e c i f i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e .




From a reliability standpoint, this zone represents a very comfortable operating power range for each driver. This level of power will not stress the woofer but will not extract all of its performance potential, either.

Use of less than the minimum power level will not damage the woofer, but may result in unsatisfactory performance.


This zone represents the best compromise between long-termreliability,high-outputandlow-distortionperformance. This power level is lower than the woofer’s continuous power rating (as published in its specifications), but you will still be taking advantage of the woofer’s,low-distortionperformance range without undue risk of failure.


Slightly more SPL will be gained by pushing the power into this zone, but typically not more than 2dB, compared to the light gray zone. The subwoofer driver is designed to operate safely up to this power range, but not beyond. Operate with caution.


We do not recommend operating woofers at this level of power. In this zone, there is a very high probability that the driver will fail due to excessive heat and/or mechanical stress.

Subwoofer drivers operated at these levels of power are NOT covered under warranty.

When designing systems with our drivers, it is very important to achieve a good power match between the subwoofer amplifier and the subwoofer driver's capabilities. The power levels listed in the above chart represent continuous (RMS) amplifier power per woofer and assume that the user will regularly make full use of that power without drastically overdriving the amplifier(s). Make sure you factor system impedance and the total number of subwoofers into your calculations. Adhering to these power recommendations will result in systems that are both reliable and enjoyable.


Marine Subwoofer Components

JL AUDIO warrants this speaker to be free of defects in materials and workmanship for a period of two (2) years from the original date of purchase.

Damage caused by the following is not covered under warranty: accident, misuse, abuse, product modification or neglect, failure to follow installation instructions, unauthorized repair attempts, misrepresentations by the seller. This warranty does not cover incidental or consequential damages and does not cover the cost of removing or reinstalling the unit(s). Cosmetic damage due to accident or normal wear and tear is not covered under warranty.

This warranty is not transferable and applies only to the original purchaser of the product from an authorized JL AUDIO dealer. Warranty is voided if the factory-appliedproduct serial number is removed or defaced.

Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction, JL AUDIO will, at its discretion, repair or replace the defective product with new or remanufactured product at no charge.

Any applicable implied warranties are limited in duration to the period of the express 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 these exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

If you need service on your JL AUDIO product:

All warranty returns should be sent to JL AUDIO freight prepaid through an authorized JL AUDIO dealer and must be accompanied by proof of purchase (a copy of the original sales receipt.) Direct returns from consumers or nonauthorized dealers will be refused unless specifically authorized by JL AUDIO with a valid return authorization number. Warranty expiration on products returned without proof of purchase will be determined from the manufacturing date code. Coverage may be invalidated as this date is previous to purchase date. Return only defective components. Non-defectiveitems received will be returned freightcollect. Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO. Freight damage on returns is not covered under warranty.

Always include proof of purchase (sales receipt).

For Service Information in the U.S.A. please call:

JL Audio customer service: (954) 443-1100during normal business hours (Eastern Time)

JL Audio, Inc

10369 North Commerce Parkway, Miramar, FL 33025

International Warranties:

Products purchased outside the United States of America are covered only by that country’s distributor and not by JL Audio, Inc.

Printed in U.S.A.