R2W8D2 - Subwoofer ALPINE - Free user manual and instructions

Product Type	Subwoofer for truck
Brand	Alpine
Model	R2W8D2
Speaker Diameter	8 inches (20.3 cm)
Impedance	Dual voice coil 2 ohms
Cone Material	Reinforced polypropylene (estimated)
RMS Power Rating	300 W (estimated)
Peak Power	900 W (estimated)
Frequency Response	30 Hz - 200 Hz (estimated)
Sensitivity	85 dB (estimated)
Main Functions	Bass frequency reproduction, design for vented enclosure, truck installation
Recommended Amplifier Settings	Low-pass filter at 70 Hz, subsonic filter at 30 Hz, gain at 1 o'clock position
Amplifier Compatibility	Alpine R-A75M or S-A60M (sold separately)
Included Accessories	Front/rear brackets, front cover, trim bars, feet, screws, hex keys
Tools Required for Installation	Hex key, electric drill
Adjustable Installation Width	From 101.6 cm (40 in) to 132.1 cm (51 in) depending on vehicle
Intended Use	Trucks (F-150, Silverado, Wrangler, RAM, etc.)
Care and Cleaning	Wipe with a dry cloth; avoid water and moisture
Safety	Secure firmly to vehicle; do not overtighten screws; consult a professional installer
Spare Parts and Repairability	Contact an authorized Alpine dealer
Warranty	See Alpine's general terms and conditions

Frequently Asked Questions - R2W8D2 ALPINE

What amplifier is recommended for the Alpine R2W8D2 enclosure?

The Alpine R-A75M and S-A60M mono amplifiers are recommended. Set the gain to 1 o'clock position, low-pass filter to 70 Hz, bass EQ to 0, and subsonic filter to 30 Hz.

What is the speaker size of the R2W8D2?

The R2W8D2 is an 8-inch (20.3 cm) subwoofer.

Can I install this subwoofer enclosure in any truck?

Yes, but the installation width must be between 101.6 cm (40 in) and 132.1 cm (51 in). Specific adjustments are recommended depending on the vehicle model (F-150, Silverado, Wrangler, RAM, etc.).

What accessories come with the R2W8D2?

The kit includes front/rear brackets, a front cover, trim bars, stacking feet (6 standard + 2 extra), screws, washers, and two hex keys.

Should I hire a professional for installation?

Alpine recommends having the product installed by an authorized Alpine dealer, as installation requires experience and specialized skills.

How to set the subsonic filter on the amplifier?

Set the subsonic filter to 30 Hz. If your head unit or DSP allows, use a center frequency of 30 Hz with a slope of 24 dB/octave.

Can I install the R2W8D2 in a Jeep Wrangler 2007+?

Yes. For the Wrangler, remove the inner foot and install it in the outer location. The minimum width is 40 in (101.6 cm). The amplifier tray is not used.

How to avoid damaging the enclosure during installation?

Use the provided hex keys to screw in the brackets and feet. Start all screws by hand and do not overtighten. Do not drill into pipes or vehicle wiring.

What type of amplifier is compatible with the R2W8D2?

Any mono amplifier compatible with a 2-ohm load (dual voice coil) can be used. Alpine recommends its R-A75M or S-A60M models for optimal performance.

Where can I find the full manual for the R2W8D2?

The manual is available for free download in PDF format on notice-facile.com. You can also request a translation in another language.

USER MANUAL R2W8D2 ALPINE

R/S-DB8V-TRK Truck Enclosure Installation Manual Compatible with the following models:

R2-W8D2

S-W8D2

Introduction

Congratulations on purchasing this truck enclosure. This installation manual is designed to take you through the step-by-step installation of the 'R' or 'S' Series Dual 8" Subwoofer Vented Enclosure for Trucks. Please familiarize yourself with the owners manual and if you still have additional questions please contact our support team at 1-800-TECH-101.

Note: To ensure safe use, Always follow these precautions.

The installation of this product requires specialized skills and experience. We recommend that you have the product installed by an Alpine authorized dealer.

Before you use this product, be sure to carefully read this installation manual so that you can use the product correctly. Failing to do so could lead to damaged equipment or an accident. Alpine Electronics bears no responsibility for problems that arise as a result of failure to follow the instructions in the manual.

Make sure enclosure is secured to the vehicle. Failing to do so can lead to electric shock, injury or damage to equipment.
- When making a hole in the vehicle body, be careful to avoid damaging pipes, the fuel tank, electrical wiring, and the like. This kind of damage could lead to an accident or fire.
- Do not install the product where it may be exposed to water or in a place with high levels of humidity or dust. Doing so could lead to fire or damaged equipment.
- Start all screw threads by hand and avoid overtourqing screws, failure to do so may damage your equipment
Matching Alpine mono ampliers are sold separately - check with an Alpine authorized dealer.

Recommended Amplifier settings

R-A75M amp S-A60M amp

Gain=1 o'clock position

LP Filter=70Hz

Bass EQ=0 (Off)

Subsonic Filter=30Hz

Gain=1 o'clock position

LP Filter=70Hz

Bass EQ=0 (Off)

(Note: If available with your HU/DSP -

We recommend a Subsonic filter, if possible

with Fc=30Hz @-24dB/Oct.)

Tools Required

Hex Key Driver (2pcs. included) Power Drill with a Low Torque Setting (Optional)

Note:
Use Hex Key Drivers for Enclosure feet, Front/Rear brackets and amp tray: Failure do so could result in damage to the enclosure.
Note:
Power Drill for Subwoofer and Amplifier installation only.

Accessory List

Driver Side Enclosure Passenger Side Enclosure

Front/Rear Link Bracket Front Cover/Trim Bars

Left/Right Amp Tray Bracket Stacking Feet for Enclosure

6 Standard Stacking Feet (Rubber/Washer/Rubber)

2 Pair Extra Parts (Rubber/Washer)

1 Installation screws are temporarily installed in both driver and passenger side enclosures. Remove all screws to prepare for assembly.

3 Place enclosures upside down on a flat surface and set to required width. Align rear link bracket with threaded inserts and secure bracket using supplied M5x20mm screws (4pcs.) and M5x12mm washers (4pcs.).

Caution: To avoid damage to the enclosure use supplied Hex Key driver for when installing the rear bracket.

5 Using the supplied M5x60mm screws (6pcs.) and M5x20mm washers (6pcs.) install feet as shown. Additional feet spacers are included to accommodate vehicles with uneven floors, floor mats etc. - see fitment chart.

Caution: To avoid damage to the enclosure use supplied Hex Key driver for when installing the enclosure feet.

2 If applicable, attach inner amp tray brackets using supplied M5x20mm screws (4pcs.) and M5x20mm washers (4pcs.).

Note: Amp tray brackets can be trimmed for narrow applications. Amp tray will not be used in some applications - See fitment chart. If Amp brackets are not installed, the 4 mount screws should be left snugly tightened in both enclosures.

Caution: To avoid damage to the enclosure use supplied Hex Key driver for when installing the amp brackets.

4 Rotate assembly rightside up and attach front link bracket using supplied M5x20mm screws (4pcs.) and M5x20mm washers (4pcs.) as shown.

Caution: To avoid damage to the enclosure use supplied Hex Key driver for when installing the front bracket.

6 Place mono amplifier on amp tray and mark the mount holes. Then drill and mount with appropriate size screws (not included).

7 Align front cover and trim bars, then install with supplied M5x20mm screws (4pcs, 4mm hex drive).

Recommended configuration for specific vehicles

Table 1: Recommended vehicle settings

Vehicle Width	Inner Foot		Outer Foot (front)	Outer Foot (rear)	Amp Tray	Notes
2015+ F-150 51" (max) yes yes yes yes
2018+ Silverado/Sierra	51" (max) yes yes yes yes
2007+ Wrangler 40"	(min) no yes yes no					Remove inner foot and install in outer location
2018+ RAM 51" (max) yes yes no yes