Rockford Fosgate M2 Series 12 Marine Subwoofer Instruction Manual
- July 8, 2024
- Rockford Fosgate
Table of Contents
Rockford Fosgate M2 Series 12 Marine Subwoofer
Introduction
Dear Customer,
Congratulations on your purchase of the world’s finest brand of audio
products. At Rockford Fosgate, we are fanatics about musical reproduction at
its best, and we are pleased you chose our product. Through years of
engineering expertise, hand craftsmanship and critical testing procedures, we
have created a wide range of products that reproduce music with all the
clarity and richness you deserve. For maximum performance, we recommend you
have your new Rock-ford Fosgate product installed by an Authorized Rockford
Fosgate Dealer. Please read your warranty and retain your receipt and original
carton for possible future use. Great product and competent installations are
only a piece of the puzzle when it comes to your system. Make sure that your
installer is using 100% authentic installation accessories from Rockford
Fosgate in your installation. Rockford Fosgate has everything from RCA cables
and speaker wires to power wires and battery connectors. Insist on it! After
all, your new system deserves nothing but the best. To add the finishing touch
to your new Rockford Fosgate image, order your Rockford accessories, which
include everything from T-shirts to hats. Visit our website for the latest
information on all Rockford products; www.rockfordfosgate.com
or, in the U.S. call
1-800-669-9899 or FAX
1-800-398-3985. For all other
countries, call +001-480-967-3565 or
FAX +001-480-966-3983.
If, after reading your manual, you still have questions regarding this product, we recommend that you see your Rockford Fosgate dealer. If you need further assistance, you can call us directly at 1-800-669-9899. Be sure to have your serial number, model number and date of purchase available when you call.
Safety
This symbol with “WARNING” is intended to alert the user to the presence of important instructions. Failure to heed the instructions could result in severe injury or death.
Warning
PRACTICE SAFE SOUND
Continuous exposure to sound pressure levels over 100dB may cause permanent
hearing loss. High-powered auto sound systems may produce sound pressure
levels well over 130 dB. Use common sense and practice safe sound.
CAUTION
This symbol with “CAUTION” is intended to alert the user to the presence of
important instructions. Failure to heed the instructions could result in
injury or unit damage.
- To prevent injury and damage to the unit, please read and follow the instructions in this manual.
- If you feel unsure about installing this system yourself, have it installed by a qualified Rockford Fosgate technician.
- Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire, and/or possible injury.
- 2020 RockfordCorporation. All Rights Reserved. ROCKFORD FOSGATE, PUNCH®, and associated logos where applicable are registered trademarks of Rockford Corporation in the United States and/or other countries. All other trademarks are the property of their respective owners. Specifications are subject to change without notice.
Specifications
| Model | M2D2-10I/IB M2D4-10I/IB | M2D2-12I/IB M2D4-12I/IB |
|---|
Nominal Diameter
| 10” (254mm)| 12” (304.8mm)
Description| Subwoofer| Subwoofer
Nominal Impedance (Ohms)| 2 or 4 Ω DVC| 2 or 4 Ω DVC
Frequency Response (Hz)| 20-750| 20-750
Voice Coil Diameter – inch (mm)
| 1.95” (2-Layer) (49.5mm)| 1.95” (2-Layer) (49.5mm)
Power Handling – Watts (RMS/Peak)
| ****
400/1600
| ****
400/1600
Fs – Free Air Resonance (Hz)| 43| 38
Qts| 0.74| 0.85
Vas – cu. ft. (Liter)
| 1.563 (44.2L)| 2.263 (64L)
Displacment -cu. fl.
(Liter)
| 0.13 (2.03L)| 0.123 (3.43L)
Sensitivity (2.83V/1M)| 90.3dB| 90.0dB
Xmax – inch (mm)
| 0.51”
(13mm)
| 0.55”
(15mm)
Grille/Trim Ring| YES| YES
LED Current Draw
| ****
0.25 Amps
| ****
0.25 Amps
Recommended Fused Rating For
LED’s (not included)
| ****
1 Amp
| ****
1 Amp
LED Voltage Range
| ****
9-16 Volts
| ****
9-16 Volts
- All measurements taken with voice coils wired in series
Diagrams
Model| M2D2-10I/IB M2D4-10I/IB| M2D2-12I/IB
M2D4-12I/IB
---|---|---
Overall Diameter
(A)
| 11.5” (293mm)| 13.87” (352.2mm)
Screw Mounting Diameter (B)| 10.16” (258mm)| 12.2” (310mm)
Mounting Screw
Angle (C)
| ****
6X60°
| ****
6X60°
Overall Height
(D)
| 6.45” (163.8mm)| 7.53” (191.4mm)
Mounting Depth
(E)
| 4.46” (113.3mm)| 5.24” (133.1mm)
Cut-out Diameter
(F)
| 8.9” (225mm)| 10.9” (278mm)
Grill Height
(G)
| 2” (50.8mm)| 2.29” (58.2mm)
Installation
Contents
- (1)Element Ready™ Subwoofer with Sport/ Stainless Grill
- (1) COLOR OPTIX™ Harness
- (1) Socket head driver bit
- (6) Socket Head Stainless Screws
- (1) 1/8” Drill Bit
- Installation and Operation Manual
OPTIMAL ENCLOSURE Infinite Baffle
An Infinite Baffle enclosure design represents an application where the compliance of the air volume within the enclosure is greater than the compliance on the speaker’s suspension (Vas). An infrasonic filter is required for reliable performance.
| Infinite Baffle | 10” | 12” |
|---|---|---|
| F3 – 3dB Point (Hz) | 49.2 | 50.5 |
| Vas – cu. ft. (Liter) | 1.56 |
(44.2)
| 4.43
(63.5)
Qtc – Enclosure Damping| 0.74| 0..58
IMPORTANT: A subsonic or “infrasonic” filter at or above the resonant
frequency (Fs) of the speaker is required.
NOTE: Infinite baffle installations will result in lower speaker power
handling when compared to fully enclosed applications such as sealed or vented
enclosures.
Wiring Configurations
By varying the wiring configuration of your speakers you can create an
impedance load to match your system. Altering the wiring configurations gives
a range of options for impedance loads. Series, Parallel, or Series-Parallel
wiring configurations are different techniques for wiring speakers that
provide different loads. Series configuration is a string method where
speakers are wired end to end. Parallel configuration uses two or more
speakers wired across common terminals. The series-parallel configuration
combines both techniques. Choose the wiring diagram that corresponds to the
number of woofers and the impedance of your amplifier.
Subwoofer Crossovers
There are two operational types of crossovers, passive and active. Passive
crossovers (coils or inductors) are placed on the speaker leads between the
amplifier and speaker. An active crossover is an electronic filter that
separates the audio signal fed to different amplifiers. For optimum subwoofer
performance, we recommend using an active 80-100Hz low-pass crossover at
12dB/octave.
OPTIONAL ENCLOSURE
Vented Enclosures
NOTE: Vb is the internal volume before any speaker and/or port displacement is added. All external dimensions were based on the use of 3/4” (1.90cm) materials.
NOTE: When using enclosures other than recommended, call Technical Support for the correct application.
Optimum Vented (Ported) Enclosure Sizes
| Vented Enclosures | 10” | 12” |
|---|---|---|
| Total Internal Volume cu. ft. (Liter) | 1.45 |
(41.06)
| 1.50
(42.50)
Woofer Displacement cu. ft. (Liter)| 0.1 (2.83)| 0.26 (7.3)
Port Displacement cu. ft. (Liter)| 0.1 (2.83)| 0.03 (0.85)
Vb – Net Internal Volume cu. ft. (Liter)| 1.25 (35.4)| 1.79 (49.8)
FB – Tuning Frequency (Hz)| 40| 40
F3 – 3dB Point (Hz)| 39| 37.2
H – Height – inch (cm)| 15.0 (38.1)| 15.5 (39.4)
W – Width – inch (cm)| 15.0 (38.1)| 21.75 (55.3)
D – Depth – inch (cm)| 15.25 (38.74)| 12.5 (31.75)
P – Port Diameter and Length – inch (cm)| 3 x 9.5
(7.62 x 24.13)
| 3 x 5.75
(7.62 x 14.59)
- NOTE: The port shown can be placed on any face of the enclosure as long as the port ends are not obstructed.
- NOTE: When using vented enclosures, for maximum reliability and power handling ensure, that a subsonic or “infrasonic” filter is used so that only usable low-frequency signal is sent to the subwoofer.
Installation Considerations
Before beginning any installation, follow these simple rules:
- Be sure to carefully read and understand the instructions before attempting to install these speakers.
- For easier assembly, we suggest you run all wires before mounting your speakers in place.
- Use high-quality connectors for a reliable installation and to minimize signal or power loss.
- Think before you drill! Be careful not to cut or drill into gas tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when working on any vehicle. If installation in a boat, take care not to cut or drill through the main hull.
- Never run wires underneath the vehicle. Running the wires inside the vehicle or hull area provides the best protection.
- Avoid running wires over or through sharp edges. Use rubber or plastic grommets to protect any wires routed through metal, especially the firewall.
Mounting
- Determine where the speakers will be mounted. Ensure an area large enough for the speaker to mount evenly. Be sure that the mounting location is deep enough for the speaker to fit; if mounting in a door, operate all functions (windows, locks, etc.) through their entire operating range to ensure there is no obstruction.
- Refer to the specification chart to determine the proper diameter hole to cut for your speaker model. Cutting and mounting templates can be found at www.rockfordfosgate.com.
- Mark the locations for the mounting screws. Drill the holes with a 1/8” bit.
- Feed the speaker wires through the cutout and connect to the speaker terminals. Be sure to observe proper polarity when connecting the wires. The speaker’s positive terminal is indicated with a “+”.
- Fit the trim ring over the speaker and mount into place using the four (4) screws that are provided.
- Tighten the screws until the speaker is snug in place to prevent rattling. Do not over-tighten the screws.
Wiring
SPEAKER Wiring
There are (2) different options for wiring your speakers. Use the included
spade connectors (included) as seen in the illustration 3.1 You can also
utilize the DEUTSCH™/Amphenol style connector (not included) input next to the
COLOR OPTIX™ connector.
COLOR OPTIX™ Wiring
If not using the PMX-RGB, follow the diagrams below for proper pin out and
hard wiring instructions.
COLOR OPTIX™ Wiring Precautions
- Do not connect to 24 Volt electrical systems
- We recommend only using the COLOR OPTIX™ wiring chart or connecting to the PMX-RGB. Connecting any other waycould cause damage to the speakers or the device you have connected to.
- We recommend installing a fuse (not included) on the Yellow 12 Volt wire whenever you are NOT using the PMXCOLOR OPTIX™. See COLOR OPTIX™ wiring chart for wiring options.
- Rockford recommends a minimum of 20 gauge wire when hard wiring your COLOR OPTIX™ speakers.
- Never wire the COLOR OPTIX™ lights directly to 12 volts. Utilize either the PMX-RGB or a toggle switch (not included) connected to a fused 12 volt power supply. Refer to the specification to determine the size of fuse (not included) needed
COLOR OPTIX™ WIRING OPTIONS
LED OUTPUT COLOR| CONNECT THIS COLOR WIRE TO
GROUND
RED| RED
GREEN| GREEN
BLUE| BLUE
YELLOW| RED & GREEN
PINK| RED & BLUE
AQUA| GREEN & BLUE
WHITE| RED, GREEN & BLUE
Connect colored wires on the right to make the output color on the left.
Connect all Yellow wires together to switch 12
_ ___Volts. _ _See Wiring Precautions.__
COLOR OPTIX™ Pin Out (wire side)
- Yellow (12V + Input)
- Green (Ground Input)
- Blue (Ground Input)
- Red (Ground Input)
Included with speakers
Connector is DEUTSCH™/Amphenol style DT06-4S
COLOR OPTIX™ Connector
Warranty
Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms:
Length of Warranty
- POWER Amplifiers – 2 Years
- BMW® Direct Fit Speakers – 2 Years
- PUNCH® & PRIME® Amplifiers – 1 Year
- Speakers, Signal Processors, Accessories and Capacitors – 1 Year
- All marine, motorcycle, motorsport products – 2 Years
- Any Factory Refurbished Product – 90 Days (receipt required)
What is Covered
This warranty applies only to Rockford Fosgate products sold to consumers by
authorized Rockford Fosgate dealers in the United States of America. Products
purchased by consumers from an Authorized Rockford Fosgate Dealer in another
country are covered only by that country’s Distributor and not by Rockford
Corporation.
Who is Covered
This warranty covers only the original purchaser of Rockford products
purchased from an authorized Rockford Fosgate dealer in the United States. To
receive service, the purchaser must provide Rockford with a copy of the
receipt stating the customer name, dealer name, product purchased, and date of
purchase. Products found to be defective during the warranty period will be
repaired or replaced (with a product deemed to be equivalent) at Rockford’s
discretion.
What is Not Covered
- Damage caused by accident, abuse, improper installation, operations, theft, or water (on non-Element Ready products).
- Any cost or expense related to the removal or reinstallation of the product.
- Service performed by anyone other than Rockford or an authorized Rockford Fosgate service center.
- Any product that has had the serial number defaced, altered, or removed.
- Subsequent damage to other components.
- Any product purchased outside the U.S.
- Any product not purchased from an authorized Rockford Fosgate dealer. Refer to the rockfordfosgate.com dealer locator for more details.
Limit on Implied Warranties
Any implied warranties including warranties of fitness for use and
merchantability are limited in duration to the period of the express warranty
set forth above. Some states do not allow limitations on the length of an
implied warranty, so this limitation may not apply. No person is authorized to
assume for Rockford Fosgate any other liability in connection with the sale of
the product.
How to Obtain Service
Please call 1-800-669-9899 for Rockford
Customer Service. You must obtain an RA# (Return Authorization number) to
return any product to Rockford Fosgate. You are responsible for the shipment
of the product to Rockford.
EU Warranty
This product meets the current EU warranty requirements, see your Authorized
dealer for details.
- www.rockfordfosgate.com/rftech
- 600 South Rockford Drive
- Tempe, Arizona 85281 United States Direct: 480-967-3565
- Toll Free: 800-669-9899 rockfordfosgate.com
References
- Car Stereos | Amplifiers | Mobile Sound Systems | Rockford Fosgate ®
- Car Stereos | Amplifiers | Mobile Sound Systems | Rockford Fosgate ®