Prime RM110D2B - Subwoofer Rockford Fosgate - Free user manual and instructions

Product Type	Subwoofer
Brand	Rockford Fosgate
Model	Prime RM110D2B
Impedance	2 Ohm DVC (Dual Voice Coil)
Frequency Response	25-250 Hz
Voice Coil Diameter	2 inches (50.8 mm)
Sensitivity	88 dB @ 1W/1m
Power Handling (RMS)	150 Watts
Power Handling (Peak)	300 Watts
Free Air Resonance (Fs)	33.5 Hz
Total Q (Qts)	0.47
Compliance Equivalent Volume (Vas)	1.77 ft³ (50.2 L)
Xmax (Linear Excursion)	0.25 inches (6.35 mm)
Recommended Sealed Enclosure Volume	1.1 ft³ (31.15 L)
Recommended Vented Enclosure Volume	1.45 ft³ (41.06 L)
Included Accessories	Grille, mounting screws, manual
Marine Grade	Yes
Warranty	1 year

Frequently Asked Questions - Prime RM110D2B Rockford Fosgate

What is the difference between sealed and vented enclosures for this subwoofer?

Sealed enclosures offer linear response, smaller size, and high power handling at all frequencies. Vented enclosures provide higher output at the tuning frequency, deeper bass with lower power, and adjustable tuning via port length. Refer to the manual for recommended volumes.

What is the best enclosure type for deep bass?

Vented enclosures generally provide deeper bass response with less power, but require proper tuning. For the RM110D2B, a vented box of 1.45 ft³ tuned to 40 Hz is recommended for deep bass.

How do I wire the dual voice coil subwoofer?

The subwoofer has a dual 2-ohm voice coil. You can wire in series for 4 ohms or parallel for 1 ohm. Ensure your amplifier is stable at the resulting impedance. Consult the wiring diagrams in the manual for multiple sub configurations.

What is the recommended crossover frequency?

Rockford Fosgate recommends using an active low-pass crossover at 80-100 Hz with a slope of 12 dB/octave for optimal performance.

Can this subwoofer be used in an infinite baffle setup?

Yes, the RM110D2B can be used in an infinite baffle (IB) installation. However, power handling is lower than in sealed or vented enclosures, and a subsonic filter is required to protect the speaker.

What is the mounting depth of this subwoofer?

The exact mounting depth is not specified in the manual. For a 10-inch marine grade subwoofer, typical depth is around 5-6 inches. Measure carefully before building the enclosure.

Is the subwoofer marine grade?

Yes, the RM110D2B is marine grade, as indicated in the carton contents. It features corrosion-resistant materials suitable for marine or outdoor use.

How do I break in the subwoofer?

Break-in is not required for this subwoofer, but playing at moderate levels for the first few hours can help loosen the suspension. Avoid full power until the speaker has been used for a short period.

What is the warranty period?

Rockford Fosgate offers a 1-year limited warranty for this subwoofer (all products except amplifiers and direct fit speakers). Keep your receipt for warranty service.

Can I use this subwoofer with a factory stereo?

Yes, but you will need an external amplifier as factory stereos cannot power a subwoofer directly. Also, a line output converter (LOC) may be required to connect to the factory system.

USER MANUAL Prime RM110D2B Rockford Fosgate

PRIME

SUBWOOFERS

R1

Serial Number: Date of Purchase:

_

600 South Rockford Drive • Tempe, Arizona 85281 United States Direct: [phone] • Toll Free: [phone]

ROCKFORDFOSGATE.COM

Installation & Operation

Introduction

Specifications

Dear Customer,

Congratulations on your purchase of the world's finest brand of car 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 relnese you deserve.

For maximum performance we recommend you have your new Rockford Fosgate product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized training through Rockford Technical Training Institute (RTTI). Please read your warranty and retain your receipt and original carbon 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 wire to power wire and battery connectors. Insert 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 web site for the latest information on all Rockford products; www.rockfordfosgate.com

or, in the U.S. call 1-800-669-9899 or FAX [phone]. For all other countries, call +001-480-967-3585 or FAX -001-480-966-3983

Table of Content

2 Introduction

3 Specifications

4-5 Enclosures

Sealed or Vented

Wiring

6-7 Additional Languages

French

Spanish

Saman

Italian

8 Limited Warranty Information

it, after reading your manual, you still have questions regarding this product, we recommend that you see your Rockford Fasgate dealer. If you need further assistance, you can call us direct at 1-800-669-9899. Be sure to have your serial number, model number and date of purchase available when you call.

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 130dB. Use common sense and practice safe sound.

PRATIQUEZ UNE ÉCOUTE SANS RISQUES

This symbol with "WARNING" is intended to alert the user to the presence of important instructions. Failure to heed the instructions will result in severe injury or death.

WARNING

This symbol with "CAUTION" is intended to alert the user to the presence of important instructions. Failure to head the instructions can result in injury or unit damage.

CAUTION

• To prevent injury and damage to the unit, please read and follow the instructions in this manual. We want you to enjoy this system, not get a headache.
• If you feel unsure about installing this system yourself, have it installed by a qualified Rockford Fosgale technician.
• Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire and/or possible injury

8/2014 Jackford Corporation. All Rights Reserved. 306500 TOSSATE, PUNCIF and associates logo when applicable are eligible to incorporate of Redford Corporation in the United States and/or other countries. All other trademarks are the properties of their respective owners. Specifications obtained to change without notice.

Model	RM18D2 / RM18D2B	RM18D4 / RM18D4B	RM110D2 / RM110D2B	RM110D4 / RM110D4B	RM112D2 / RM112D2B	RM112D4 / RM112D4B
Nominal Impedance (Chms)	2.0 DvC 4.0 DvC 2.0 DvC 4.0 DvC
Frequency Response (+/-)	30-250	21-250	25-250	26-250	21-250	22-250
Voice Coil Diameter - inch (/mm)	1.5 (4-Layer) (38.8)	1.5 (4-Layer) (39.6)	2 (4-Layer) (40.8)	2 (4-Layer) (50.6)	2 (4-Layer) (50.8)	2 (4-Layer) (50.9)
Disaperture - ft. ft. (L/min)	0.15(1.41)	0.05(1.41)	0.1(2.83)	0.1(2.83)	0.12(3.4)	0.12(3.4)
Fe - Free Air Resistance (-/-)	40.0	41.5	33.5	35	28.5	29
Ots	0.75	0.81	0.47	0.51	0.58	0.54
Vis - ft. ft. (L/min)	0.83(17.8)	0.67(19.0)	1.77(50.2)	1.78(50.36)	3.8(107.75)	3.83(108.62)
X-ray - Incm (mm2)	0.26(1°)	0.29(3°)	0.25(1°)	0.28(7°)	0.25(1°)	0.28(7°)
SPI (dB @ 14V/mg)	85	85	88	88	88	88
Wave - Banding - With RMS/ Peak	150/300 150/300/400/400/400/400/400/400

* All measurements taken with voice coils wired in series

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Carton Contents

• (1) Marine Grade Subwoofer - (1) Socket Head driver oil
  • (1) Grille • Installation and Operation Manual
  • (9) Scinel Head Stainless Screws

Recommended Enclosures

This manual outlines two specific types of enclosures that provide distinctly different performance. This section is to help you decide which type is best for your application.

Sealed Enclosures

Sealed enclosures are the simplest to build. The most important part of building a starred enclosure is to make sure that the enclosure is air, gft. Using glue and some type of sealant on all seams will ensure solid construction and prevent air leaks. The box volume will directly impact the performance of the speaker. Larger enclosures will provide flatter response and deeper bass where smaller boxes will provide a bump in the response curve and generally higher output for greater SPL

Advantages of sealed enclosures:

- Small enclosures

• Linear (Flat) response
• No part noise
• High power handling at all frequencies
- Exclined low from weak natural, when converted in rental and cash res

Vented Enclosures

vented enclosures vary only from the sealed enclosure in that a vent or port is added to 'bune' the enclosure. The enclosures recommended are designed for great overall performance. Larger boxes tend to be easy to tune to lower frequencies while medium and small boxes are easier to tune to higher frequencies. The vented design is less linear in response than the sealed box but with non-raceily more output at the turing frequency.

Advantages of vented enclosures:

• Higher average color than sealed
- Turing frequency can be easily adjusted by charging port length
- Deep loss response with lower power requirements
• Great for high output with limited power

Infinite Baffle Design

These designs typically called "B" are the closest enclosure bytes to build. The reason is that you are not actually building an enclosure, but rather simulating one. This is come by closing off a cavity area for the trunk, enclosed area of a body Haiti with a bar-line board. This creates your "B" auto-wonder system. Essentially, as "B" design can just be considered a large sealed enclosure design. Given that, an "B" design does not rely on a volume of air for its suspension, the low frequency output is driven by the scooter's inherent damming or "Oc".

Advantages of infinite baffle design:

• Easy to break
  • Licht-wirch
• Deep bass response with lower power requirements

Vented vs Sealed vs Infinite Battle

The graph shown here is a sample of now S ^2 L and Excursion cillers between the various enclosures.

Building an Enclosure

To work properly, the walls of the enclosure must be rigid and not flex when subjected to the high pressures generated by the socialer's operation. For upper performance, we recommend using S/7 MDF (Medium Density Fiberboard) and internal bracing. The enclosure should be placed together and secured with rails or screws.

Calculating Volume

Calculating volume is merely a matter of measuring the dimensions in inches and using the formula H x W x D divided by 1728 (cup c teeth). See block below.

Box Volume	Height" x Width" x Depth"
Divided by (cubic feet)	1728

It two facing sides are of uneven leg, and then together and divide by two to have the average. Using this number and give you the volume without the necessity of calculating the box in sections and adding the sections together. The thickness of the little material reduces the time and volume so this must be subtracted from the outside dimensions to determine the time and volume. The spread is not also reduces the inner volume. The amount of air displaced by each mode is listed on the specification sheet and should also be subtracted from the gross volume calculation.

Sealed Enclosure

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 correct application.

Optimum Sealed Enclosure Recommendation

Sealed Enclosures	8"	10"	12"
Total Internal Volume cu. ft. (Liter)	8.05 (10.62)	1.1 (31.15)	1.85 (46.72)
Wool Displacement cu. ft. (kg)	0.05 (1.71)	0.1 (2.5)	0.12 (1.4)
V. Current Volume cu. ft. (kg)	10.0 (14.2)	1.0 (28.6)	1.6 (43.8)
Ft. - 205 Point (ft)	47.7	58.4	43.1
Gz. - Enclosure Conserg.	1.19	0.55	0.65
H. High Iron (cm)	12 (30.48)	14 (30.16)	15 (31.1)
Wt. - High Iron (gnd)	12 (30.48)	16 (30.64)	15 (40.6)
D. Delta Iron (mm)	10 (25.1)	12.25 (32.66)	15.2 (32.1)

Recommended Sealed Enclosure Volume Range

Sealed Enclosures 8"	10"		12"
V - Volume range on R	0.4 to 0.75	0.75 to 1.25	1.25 to 1.75
(L/min)	(1.34 to 2.24)	(2.18 to 3.54)	(3.4 to 4.95)

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 procedures other than recommended, call Technical Support for correct application

Optimum Vented (Ported) Enclosure Sizes

Vented Enclosures 8" 10" 12"
Total Internal Volume ca. II. (L-ter)	1.10 (31.15)	1.45 (41.86)	2.45 (69.38)
Venter Replacement ca. II. (L-ter)	0.1 (2.83)	0.35 (3.33)
Port Drop element ca. II. (L-ter)	0.1 (2.83)	0.35 (3.33)
Y - Net Internal Volume ca. II. (L-ter)	1.10 (25.3)	1.25 (35.7)	2.0 (56.65)
I_p Timing Frequency (Hz)	40	40	35
I_p -0.05 Pin (Hz)	367	39	36
H - Height - Industr	12 (20.48)	15.0 (34.7)	16.0 (49.67)
W - Altth - Int. (mm)	16 (40.64)	15.0 (34.7)	19.7 (49.6)
D - Depth - Industr (cm)	14 (30.56)	15.25 (34.76)	17.5 (49.45)
F - Port Diameter and Length - Industr (mm)	3.9 x 10^-6	3.6 x 10^-6	4 x 10^-6

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 infrasmonic filter is used so that only usable low frequency signal is sent to the subcooler.

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 (yes). An infrasonic filter is required for reliable performance.

Infinite Baffle	8" 10" 12"
F_c - 3dB Point (Hz)	42.7	69.4	43.3
Vas cu. t. (Litter)	0.63(17.9)	1.77(50.2)	3.80(107.7)
Ote - Enclosure Camping 0.66	0.43	0.54

IMPORTANT: A subsonic or "infrasonic" filter at or above the resonant frequency (Fs) of the speaker is required.

NOTE: Infinite battle 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. Aliening 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 differential loads. Series configuration is a string method where speakers are wired and end to. Para-parallel configuration uses two or more speakers wired across common terminals. Series-Parallel configuration combines both techniques. Choose the wiring diagram that corresponds to the number of workers and the impedance of your amplifier.

Subwoofer Crossovers

There are two operational types of crossovers, passive and active. Passive crossovers (pools 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 led to different amplifiers. For optimum subwoofer performance, we recommend using an active 80-100Hz low-pass crossover at 12dB/Hz.

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Infinite Battle design

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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

All other products - 1 Year

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 or its possessions. Product 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 product purchased from an Authorized Rockford Fosgate Dealer in the United States. In order 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

1. Damage caused by accident, abuse, improper operations, water, theft, shipping.
2. Any cost or expense related to the removal or reinstallation of product.
3. Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center.
4. Any product which has had the serial number defaced, altered, or removed.
5. Subsequent damage to other components.
6. Any product purchased outside the U.S.
7. Any product not purchased from an Authorized Rockford Fosgate Dealer.

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

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, 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 shipment of product to Rockford.

EU Warranty

This product meets the current EU warranty requirements, see your Authorized dealer for details.