Our take on the Rockford Fosgate T110D2

by Steven Johnson

The fanatics at Rockford Fosgate are always testing the limits of bass — and that's how Power Series Stage 1 subwoofers were born. Ideally suited for use with Power Series amps, everything about these innovative woofers screams "hard-hitting sound."

The aluminum parabolic cone has a high-excursion rubber surround for the kind of travel that ensures max bass. The massive 102 oz. double-stacked magnet structure and oversized 3" copper-clad aluminum voice coils handle just about all the power you can throw at them. Spider venting keeps the woofer cool even when you run it long and hard.

The T110D2 10" subwoofer can blast away in either sealed or vented enclosures. The dual 2-ohm design lets you wire for high output or a multiple woofer setup.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation.

Details:

10" subwoofer with dual 2-ohm voice coils
aluminum parabolic woofer cone
rubber surround
cast aluminum basket
frequency response: 20-200 Hz
power range: 150-600 watts RMS (300 watts per coil)
peak power handling: 1,200 watts
sensitivity: 82 dB
top-mount depth: 6-7/16"
sealed box volume: 0.5-1.0 cubic feet
ported box volume: 1.0-2.0 cubic feet
Recommended Q-Logic Box Type: 1, 2, 3
warranty: 1 year

Priced per speaker

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and specs chart | What’s in the box? | In-depth notes

Features and Specs


Size Loading...	10 -inch
Impedance Loading...	2 ohms
Cone Material Loading...	Aluminum
Surround Material Loading...	Rubber
Ideal Sealed Box Volume (cubic feet) Loading...	0.75
Ideal Ported Box Volume (cubic feet) Loading...	1.5
Port diameter (inches) Loading...	4
Port length (inches) Loading...	11
Free-Air Loading...	No
Dual Voice Coil Loading...	Yes
Sensitivity Loading...	82 dB at 1 watt
Frequency Response Loading...	35 - 250 Hz
RMS Power Range (Watts) Loading...	150-600
Peak Power Handling (Watts) Loading...	1200
Top Mount Depth (inches) Loading...	6 7/16
Bottom Mount Depth (inches) Loading...	6 7/8
Cutout Diameter or Length (inches) Loading...	9 5/16
Vas (liters) Loading...	19
Fs (Hz) Loading...	32
Qts Loading...	0.574
Xmax (millimeters) Loading...	14
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year

Product Research

What's in the box?

Download owner's manual

One 10" woofer
1 Metal concealing ring
12 Self-tapping screws
1 Allen bit
4 Self-adhesive foam gasket sections
Installation and Operation manual

Our Product Research Team

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Features
Enclosure Compatibility

Features

Dual 2-ohm Voice Coils: This woofer features dual 2-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel with each other, the woofer presents a 1-ohm mono load. When the voice coils are wired in series with each other, the woofer presents a 4-ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2-ohm load.

Woofer: The aluminum parabolic woofer cone is lightweight and extremely strong, giving the woofer very high power handling, low distortion, and superior bass response.

High Excursion Thermo-Rubber Surround: The use of a "tall/skinny" high excursion thermo-rubber surround allows for linear cone travel on a high excursion driver without reducing cone area.

Parabolic Triangular Cone Geometry Support System: By bonding an aluminum parabolic dust cap of equivalent size to the cone body, a balanced triangular structure is created. This system reduces piston flex and eliminates cone distortion.

Mirror Image Symmetrical Spiders: Dual-opposing spiders offer superior mechanical stability during high excursions, while maintaining linear travel.

Spider Support Ring: This integrated ring increases the bonding surface area between the voice coil former and spider, establishing a stronger joint. The result is increased mechanical power handling under high power/high excursion situations.

Anodized Aluminum Voice Coil Former: Aluminum voice coil formers offer superior heat dissipation over other commonly used materials. The hard-anodized finish increases the former strength. These two factors combine to improve the overall power handling characteristics of the subwoofer.

Precision Cast Aluminum Alloy Basket: A two-piece "basket in a bucket" design adds rigidity and eliminates multiple acoustic resonances. Additionally, the large aluminum mass helps reduce voice coil former temperature and increase power handling.

Double Stacked Magnet Motor Assembly: The stacked magnet assembly is used to create a powerful linear motor with increased excursion capability for superior bass output.

Slot-Loaded Spring Terminals: The proprietary, slot-loaded spring terminals will accept pin connectors and up to 8-gauge bare wire.

Concealing Ring: Once the subwoofer is mounted, the metal concealing ring can be installed to hide the mounting screws, giving the subwoofer a finished look.

Enclosure Compatibility

Recommended Sealed Box Volume: Rockford Fosgate recommends mounting this woofer in a sealed enclosure with an internal volume of between 0.5 cu/ft. and 1.0 cu/ft. with an ideal volume of 0.75 cu/ft.

Recommended Vented Enclosures: Rockford Fosgate recommends mounting the woofer in a vented enclosure with an internal volume of between 1.0 cu/ft. and 2.0 cu/ft. with an ideal volume of 1.5 cu/ft. One 4" port is recommended at the following lengths for each size enclosure:

Box Size	Box Volume	Port Length
Minimum	1.0 cu/ft.	18"
Recommended	1.5 cu/ft.	11"
Maximum	2.0 cu/ft.	7.5"

1-9 of 9 items Sort Results By: Date Reviewed | Rating | Helpfulness

5 out of 5

Great Sub

Written By Dion, PA on Thursday, January 28, 2010

I recently purchased this sub for my G35 Sedan mounted in a custom sealed enclosure and hooked up to an Infiniti Reference 1600a. I sat for a pretty long time trying to decide if 1 would be enough for such a small sub, but let me tell you it is. With the setting well below half, everything in the car shakes. When i pop the trunk, people cant believe all that bass comes from something so small. You can set it to produce a fine balance with any style of music or crank it up so that pressure changes in the car make your eyes bug and your ears pop...this thing handles it no problem. I strongly recommend this product.