Rockford VSPDRAM Reference

VSPDRAM

VSP ENCLOSURE

Vehicle Specific Punch

Dodge Ram Extended Cab ’95+

FEATURES

Specification

Reference

Sheet

• Vehicle Specific – Custom molded to fit under the rear bench seat.

• Acoustic Suspension Enclosure – The VSP enclosure uses an

acoustic suspension design (sealed) for optimum performance. The
enclosure is matched to the woofer for deep bass output while requiring
minimal operating space.

• Roto-Molded Urethane Construction – The use of Roto-Mold

manufacturing produces a composite enclosure with seamless construction.
This greatly increases rigidity to prevent the enclosure from flexing and
allows custom designs to be fabricated. The result is a radical, stronger,
more reliable enclosure.

PUNCH WOOFER

• PVA Cone – The cone material used is spruce pulp paper and provides

the necessary combination of weight and strength to allow high levels of
output without cone break up. The cone is also treated with a water
resistant PolyVinyl Acetate (PVA) Emulsion which increases cone rigidity
and lowers distortion.

SPECIFICATIONS

VSP Enclosure

Frequency Response ..............................................24Hz-400Hz

Overall Dimensions ...................................... 8”H x 52”W x 17”D

(20.32cm x 132.08cm x 43.18cm)

Weight (woofer supplied) ............................... 34 lbs. (15.42kg)

Punch Woofer

Speaker Model ....................................................(2) RFP-1810

Nominal Impedance.............................................................8Ω

Fs ...............................................................................26Hz

RE ...............................................................................7.2Ω

• Aluminum Voice Coil Former – The voice coil is made of multiple

layers of copper wound on a black, anodized aluminum former. This
improves the speaker’s power handling by efficiently dissipating heat from
the voice coil.

• Hyper-Extended Pole Piece – The pole piece has been extended to

provide a more linear magnetic field for the operation of the woofer. This
lowers distortion and provides the woofer with better low frequency
response.

• Vented Bumped Back Plate – The back plate has been stepped

deeper to allow the woofer more excursion for harder hitting bass.
Additionally, the back plate is vented with a radiused aerodynamic vent that
efficiently and quietly keeps the voice coil cool.

LE.......................................................................... 4mH

QMS....................................................................... 4.70

QES ....................................................................... 0.29

QTS........................................................................ 0.27

VAS (ft3/liter) .................................................. 2.72 (77L)

XMAX (in/mm) ............................................ 0.31” (8mm)

SPL (dB @ 1w/1m) .................................................88dB

Power Handling (RMS/Peak) ........................ 200W/400W

Speaker Displacement (ft3/liter) ................... 0.06 (1.699L)

ACCESSORY PACK

(1) Input Terminal Cup (2) 3/8” – 16 x 11⁄4” Bolts (2) 3/8” Lock Washers (16) #10-32 x 3/4” Allen Screws
(4) Phillips Screws (2) 3/8” ID x 11⁄2” OD Washers (8) Foam Woofer Gaskets (2 x 24”) Red/Black 16 gauge Speaker Wire
(2) 4” x 4” Wax Squares

®®

–1–

Specifications subject to change without notice

VSPDRAM

The Vehicle Specific Punch (VSP) enclosure is supplied in kit form to allow custom finishing techniques. The unfinished surface
enables matching paint or carpet to be applied to the enclosure for seamless integration into the vehicle’s interior. In addition, the
input terminal cup can be positioned in the desired location where speaker wires can be conveniently routed from the amplifier to
the enclosure.

Dodge Ram Extended Cab ’95+

Vehicle Specific Punch

Installation

Reference

Sheet

IMPORTANT – Please follow these instructions carefully!!

The VSP enclosure is specially molded to fit particular vehicles. Be sure to attach the enclosure to the vehicle as
specified in this installation sheet for optimized bass output. Failure to install the enclosure as specified in this docu­ment may allow the enclosure to become detached from the vehicle and possibly cause personal injury.

Always use eye protection when drilling.

Never run wires underneath the vehicle. Run wires inside the vehicle and use rubber or plastic grommets

!

to protect wires routed through metal.

VSP ENCLOSURE PREPARATION

1. Select the desired location for the speaker terminal cup, and with a hole saw, cut a 2” diameter hole.

2. Using the speaker terminal cup as a template, mark the holes used to secure the cup to the enclosure.
Remove the cup and drill pilot holes using a 3/32” drill bit.

3. Carpet or paint the enclosure and the speaker grille to your desired color theme.

4. Connect the supplied speaker wire to the appropriate (+) and (–) terminals of the speaker cup.
Connect the RED wire to the (+) terminal and the BLACK wire to the (–) terminal.

5. Secure the speaker terminal cup to the enclosure using the (4) supplied Phillips screws.
Connect the speaker wires as shown in the diagram and secure the woofers to the enclosure. Be

sure to maintain proper speaker polarity.

+ –

4Ω load

+ – + –

8Ω load 8Ω load

–2–

VSPDRAM

VEHICLE PREPARATION

6. The VSP enclosure will be located under the rear bench seat. Be sure to remove any
obstructions for proper installation.

7. Slide the front seats all the way forward and fold up the rear bench seat.

8. Remove the spare tire tools and bend the two metal brackets back. This will allow the
VSP enclosure to be properly installed in the vehicle.

9. Thread the supplied bolts fully into the VSP enclosure and test fit the enclosure in the
vehicle.

10. Remove the backing from the wax squares and place them under the bolts. Press down
firmly on the enclosure to make an impression of the bolt heads into the wax squares.
Making sure not to move the wax squares, carefully remove the enclosure from the
vehicle.

Dodge Ram Extended Cab ’95+

Vehicle Specific Punch

Installation

Reference

Sheet

11. Check under the vehicle for brake or hydraulic lines before proceeding. Using a 1/2”
diameter drill bit, drill the holes through the fender well and the floor board using the wax
squares as your template.

VSP ENCLOSURE INSTALLATION

12. Run the speaker wire from the amplifier to the desired location and connect the proper
(+) and (–) speaker terminals to the enclosure.

13. The next procedure will require 2 people. While one person is positioning the VSP enclo­sure, the second person should insert the long bolts from the underside of the vehicle. Put a
bead of silicone sealant between the car sheet metal and the washers. Screw the bolts into
the enclosure’s threaded inserts and tighten them. DO NOT OVER TIGHTEN.

Enclosure Wall (urethane) Threaded Insert

Fender washer

Split lock washer

molded into enclosure

Car’s sheet metal

Bead of Silicone Sealant

3/8” bolt

14. After the bolts are tightened, spray rubberized undercoating over the bolts and over
any bare metal. This will prevent the metal from rusting and will prevent the bolts
from loosening due to vibrations.

15. If necessary, fine tune the system to find the proper bass level for your new VSP
woofer enclosure.

–3–

L

IMITED

Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms:

• Length of Warranty
1 year on VSP speakers (not the entire enclosure)

• 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

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

W

ARRANTY

I

NFORMATION

• 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 shipment of product to Rockford.

Ship to: Electronics
Rockford Corporation
Warranty Repair Department
2055 E. 5th Street
Tempe, AZ 85281
RA#:_________________

Ship to: Speakers
Rockford Acoustic Design
(Receiving-speakers)
609 Myrtle N.W.
Grand Rapids, MI 49504
RA#:_________________

MADE IN THE USA

This product is designed, developed and assembled in the USA by a dedicated group of American
workers. The majority of the components used in the construction of this product are produced by

American companies. However, due to the global nature of their manufacturing facilities and the

electronics parts industry in general, some parts may be manufactured in other countries.

Rockford Fosgate

Rockford Corporation

546 South Rockford Drive

Tempe, Arizona 85281 U.S.A.

In U.S.A., [phone]

In Europe, Fax [phone]
LIT10031
4/98

In Japan, Fax [phone]

www.rockfordfosgate.com