Roadmaster VRA1.0PSW User Manual
VRA1.0 PSW
Powered
Subwoofer
1 Pre-installation 3 Electrical Connections
Tools Needed For Installation:
• Nail Set/Center Punch
• Phillips Screwdriver
• Hammer
• Wire Cutter
Read the following wiring instructions very carefully. If you have any trouble understanding any of these instructions, have the amplifier professionally installed by an experienced technician. Incorrect wiring will prevent the
amplifier from operating, or will damage the amplifier.
Recommended Method For Splicing Wires
Dear Customer,
CONGRATULATIONS. The VRA1.0PSW Powered Subwoofer, when used as described, will give you years of dependable service in your car,
truck, RV or mini-van. We have taken numerous measures in quality control to ensure that your product arrives in top condition, and will perform to your satisfaction. In the rare event that your VRA1.0PSW Powered Subwoofer contains a damaged or missing item, does not perform
as specified, requires warranty service or you have an installation problem. DO NOT RETURN THIS PRODUCT TO THE STORE. Please call
our TO
LL FREE number US (800-445-1797) and ask to speak with a member of our technical service team, or submit your questions by E-Mail
to customerservice@vr-3.com and a member of our technical service team will respond by E-Mail to your questions. Our in-house technical
service team will expedite delivery of your part, advise you on installation, or help troubleshoot a pr
warranty service, our technical service team representative will help you obtain the fastest remedy possible under the warranty.
oblem with you. If your product needs
Specifications
• 400 Watts Total Power
• 100 Watts @ 4 Ohms < or = 1% THD+N.
S/N > or = 75 dbA ref. 1 Watt Output @ 14.4 VDC.
• Measured at 14.4 VDC Input Voltage
• Frequency Response: 25 150 Hz
• Dimensions: 18.63” L X 9.25” W X 7.25”H
• Ported ABS Enclosure
• 8” Subwoofer
• Fuse: 20 Amp Automotive Blade Type
Parts
• 1 Ground Wire
• 1 Self Tapping Screw
• 4 #6 Screws
• 20 Amp Fuse
• Spade Terminal
Features & Functions
•Electric Drill
• Safety Glasses
We recommend an Ampli
• Power Wire - 8 Gauge w/ Terminal Lug
• Remote Wire - 20 Gauge
fi er Installation Kit containing the following parts:
• Marker/Pen
• Input Wires - Shielded RCA cables
• After-Market Battery Terminal
• Electrical Tape
with 1/16” bit
Location
Place the powered subwoofer in a location that allows air to circulate around it. Amplifi er location and installation will vary from vehicle to vehicle
depending on physical layout of the vehicle. Carefully consider as many installation locations and confi gurations as is practically possible DO
NOT COVER the powered subwoofer with carpet or enclose it behind interior panels. DO NOT mount inverted or upside down. The amplifi er
may be mounted vertically.
Before permanently installing your VRA1.0PSW Powered Subwoofer, place the VRA1.0PSW Powered Subwoofer in the approximate place it
will occupy in your car. Run all power and speaker wires inside the vehicle toward the powered subwoofer prior to mounting. This will allow you
to estimate how much wire you’ll need and where to route the wires inside of your vehicle.
Connect the fused 12 Volt DC power wire, chassis ground cable, and remote wires. (SEE SECTION 3, ELECTRICAL CONNECTIONS)
Turn on the car strereo, if the Power Protection light is green, turn off the stereo and proceed to the next section. If the Power Protection light is
red, review all of the connections and wires. You may have a loose connection, a bad chassis ground, or an inadequate size power wire. If the
problem persists after reviewing all of the connections and wires, call our toll-free help line for assistance.
Do not mount inverted or upside down. Do not cover with
carpeting or enclose it behind interior panels.
2. Mounting the Powered Subwoofer
Water Damage: Do not install this Powered Subwoofer in a location that will expose it to water or moisture.
Dust or Dirt: Do not install this Powered Subwoofer in a location that will expose it to dusty or dirty conditions.
DO NOT BLOCK THE PORT OPENING FOR ANY REASON.
Modifications: Do not open the Powered Subwoofer for any reason, or modify it in any way. If modified in any way
a fire hazard or malfunction may occur. Modification will void the warranty.
FIG. 1
Attach the supplied brackets to the base of the
Powered Subwoofer using the 4 Phillips Pan
Head Screws.
(Figure 1)
#1 #2 #3
Strip 1/2” of insulation from the ends of the wires.
Twist together and bend as shown.
Wrap with electrical tape.
1. Power Terminal
1. DISCONNECT THE NEGATIVE(-) BATTERY TERMINAL FROM THE NEGATIVE BATTERY POST.
2. Strip ½” of insulation from the end of the 8 gauge power wire. Connect the 8 gauge power wire to the
after-market positive battery terminal according to the manufacturer’s installation instructions.
To Amplifier Power Terminal
In-line 25 amp Fuse or Circuit Breaker
3. Install a 25 amp fuse or 25 amp circuit breaker in the 8 gauge power wire as close to the battery as practical.
4. Route the 8 gauge power wire from the 25 amp fuse or circuit breaker to the rear of the powered subwoofer.
5. Strip 1/2” width of insulation from the end of the 8 gauge power wire.
6. Attach a spade lug on the end of the 8 Gauge wire.
7. Loosen screw to open POWER connector plates on rear of amplifi er.
8. Insert the spade lug between the connector plates. Turn screw until power cable is tight.
(not included)
After Market Positive Terminal (+)
2. Remote Terminal
The REMOTE wire connection automatically turns on your amplifi er when your stereo is turned on.
On most stereos, this wire is marked as the REMOTE, ACCESSORY, or POWER
1. Locate the REMOTE,
2. Splice the REMOTE, ACCESSORY or POWER ANTENNA wire from rear of the stereo to a length of wire that will
reach the rear of the amplifi er
3. Loosen screw and open REMOTE connector plates on rear of amplifi er.
4. Insert wire end between the REMOTE connector plates.
5. Tighten screw closing REMOTE connector plates on wire.
ACCESSORY, or POWER ANTENNA on the stereo. (Refer to your stereo owner’s manual.)
ANTENNA.
3. Ground Terminal
1. The ground connection cable should be attached to clean, unpainted chassis metal for a good electrical connection.
2. Find good, non-rusted chassis metal, as close to the amplifi er as possible.
Vehicle’s Positive(+)
12 Volt power cable
• Fuse 20 Amp
• Terminals for 12 Volt DC Power,
Remote Switch, and Chassis Ground
• “RCA” Inputs
• Volume Control
• Power / Protect LED
3.
4.
FIG. 2
FIG. 4
FIG. 5
FIG. 3
Steel Mount
With a hammer & nail set/center punch, make
dimple marks on the mounting surface for each
monting screw.
(Figure 2)
Carpet Mount
Cut a piece of plywood 22” x 11” and slide it
under the carpet where the powered subwoofer
will be mounted and proceed to step #4
(Figure 3)
Drill 4 pilot Holes with an electric drill & 1/16”
bit. Make sure that nothing is behind the mounting surface that can be damaged when drilling
the holes.
(Figure 4)
Secure the Powered Subwoofer using the 4 self
tapping screws included
When mounting the powered subwoofer, make sure there is enough
room for access to make adjustments to the volume control.
3. Drill a pilot hole with a 1/16” drill bit.
4. Use sandpaper to expose an area of bare metal around the pilot hole about the size of a dime.
5. Tightly fasten the provided ground cable with the self tapping sheet metal screw to the chassis metal.
A loose ground will cause distortion and popping noises in the speakers.
Recommended Method For Attaching Wires to Terminals
1. GROUND WIRE
To connect the supplied ground wire,
remove the screw and contact from the
ground terminal on the rear of the amplifi er. Put the screw through the contact
plate, then through the ground wire, and
fi nally tighten the screw.
2. REMOTE WIRE
To connect the remote wire, place the
twisted end under the contact plate and
tighten screw.
1. GROUND WIRE
3. POWER WIRE
When connecting the power wire, place
the spade terminal under the contact
plate and the forks around the screw.
Then tighten the screw.
2. REMOTE WIRE
3. POWER WIRE
LINE OUTPUTS
GIVE US A CALL, WE'LL HELP YOU INSTALL.
PLEASE DO NOT RETURN PRODUCT TO STORE.
Visit us on the WEB
www.vr-3.com
For Information and Technical Assistance,
Call Toll-Free in U.S.A. and Canada.
1-800-445-1797
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