Roadmaster VRA41 User Manual

VRA4.1 Car Amplifier

3 Connecting the Audio Line Inputs

5 Speaker Options With The VRA4.1

Virtual Reality Sound Labs

SERIOUS SOUND

Start Here

BEFORE YOU BEGIN - Please Read Installation Manual Prior to Beginning. Installation of this product may require the removal and reapplying of interior dash, sideboard, kick panel and door components. For optimum performance, consider purchasing an Amplifier Installation Kit, available at your local retailer. Speaker wire not included.

Remove the VRA4.1 Car Amplifier from the box and plastic wrapping. Discard the plastic wrapping. Children may unknowingly place the plastic wrapping over their head causing severe injury.

Start Here

Wire Recommendations:

• Power: 8 Gauge

• Remote: 18 to 20 Gauge

• Speakers: 12 to 16 Gauge

• Input: Shielded Audio RCA Cables

• RCA "Y" Adaptors

Parts Included:

• Ground Wire & Screw

• 10 Wire Nuts

• 4 Mounting Screws

• Spare Fuse

• After-Market Battery Terminal

1 Mounting the Amplifier in Your Vehicle

TOOLS NEEDED TO INSTALL:

• Philips Screwdriver • Wire Cutter

• Marker/Pen

• Safety Glasses

At this time, you should run all wires inside the vehicle toward the amplifier prior to mounting. This allows you to see if you have enough wire and provides an idea as to where the wires will run inside your vehicle.

• Electrical Tape

1 Determine where in your vehicle the

amplifier will be located and mark the holes in the Mounting Brackets with a marker/pen.

• Hammer• Nail Set/Center Punch

2 Dimple marks in vehicle's surface with

hammer and nail set/center punch prior to drilling. This prevents the drill from running across metal surfaces.

• Electric Drill with

1/16" bit

RCA

Line Input

Jacks

RCA Cables

Not Included

Converter

Not Included

RCA "Y" Adaptors

Not Included

Hint:

RED is always the RIGHT channel.

Gray, Black, or White will be the LEFT channel.

Determine if your stereo has RCA type output jacks as seen in diagram 3B. If your stereo does not have RCA type output jacks, a converter (Fig. 3C) will need to be purchased. Install the converter according to the instructions that come with it.

For Optimum Performance: RCA "Y" Adaptors (Fig. 3C) will also need to be purchased for achieving peak sound from speakers and subwoofers connected to individual speaker connectors or to the amplifier's BRIDGED connectors.

Using Shielded RCA Cables connect the Audio Outputs from your stereo to ALL SIX (6) Amplifier Inputs (SUBWOOFER, FRONT, REAR) as shown in Fig. 3B. If you only connect to two sets of inputs, you will only hear sound from the front or rear speakers or the subwoofer depending on which you have connected.

4 Connecting the Remote

Left Channel

Left

Rear

Front

RCA Cables

"Y" Adaptors

NOT INCLUDED.

Colors may vary by manufacturer.

Left

Subwoofer

and

Right Rear

Right Channel

Right

Subwoofer

Right Front

Front of Amplifier

LINE INPUTS

SUB

WOOFER

What Your Stereo Outputs May Look Like

Rear

Front

Channel

LEFT

RIGHT

FRONT

REAR

Bridgeable Speaker Connectors

The VRA4.1 Car Amplifier is capable of powering speakers and/or subwoofers in the configurations shown below:

1 Strip fingernail width of 12 to 16 gauge wire.

2 Twist exposed ends.

3 Loosen screws and open LEFT and RIGHT, FRONT

and REAR speaker connector plates (+/-) on rear of amplifier.

4 Insert wire ends between open connector plates.

5 Tighten screws closing speaker connector plates on wires.

6 Strip fingernail width of wire from opposite ends.

7 Connect wires to LEFT and RIGHT (+/-) , FRONT or

REAR speakers.

4 OHM

RIGHT

4 OHM

SUBWOOFER

Subwoofer

BRIDGED

LEFT

BRIDGED

BRIDGED:

Bridging the amplifier takes two channels and combines them into one, supplying more power to subwoofers or speakers.

FRONT

REAR

Width of Stripped Wire from End

Loosen screw, open connector plates, insert wire.

4 OHM

BRIDGED

LEFT

4 OHM

BRIDGED

RIGHT

Twis t Wire

DO NOT hook wire around screw.

4 OHM SUBWOOFER

bwoofer

3 Drill holes with electric drill and 1/16" bit.

(Safety glasses should be worn at this time.)

4 Secure amplifier with included screws

and washers using philips screwdriver.

PLEASE REMAIN AWARE OF VEHICLE'S GAS TANK WHEN DRILLING.

2 Connecting the Ground

Ground Wire and Screw Included

2B 2C

AMPLIFIER

PLEASE REMAIN AWARE OF VEHICLE'S GAS TANK WHEN CONNECTING GROUND WIRE.

1000 WATTS

4.1-CHANNEL

Based on the length of the wire you are using, when connecting the

RECOMMENDED

METHOD FOR

SPLICING WIRE

The REMOTE wire connection automatically turns on your amplifier when your stereo is turned on.

On most stereos, this wire is marked as the REMOTE, ACCESSORY, or POWER ANTENNA.

REMOTE terminal on the VRA4.0 amplifier to your stereo, you may need to splice additional wire in order to make a connection. Please follow the

provided splicing guide when doing so.

Strip 3/4" of insulation.

Mate wires as shown.

Twist together as shown.

1 Strip fingernail width of 18 to 20 gauge wire and twist exposed end.

95.5

Wrap with electrical tape.

4 Speakers & 1 Subwoofer

2 Speakers & 1 Subwoofer

6 Connecting the Power

1 Strip fingernail width of 8 gauge wire. See 6A 2 Twist exposed end. 3 Loosen screw, open POWER connector plates on rear of amplifier and insert wire end. See 6B 4 Tighten screw closing POWER connector plates on wire. 5 Strip fingernail width of wire from opposite end and connect to an after-market battery terminal

(Sold Seperately).

6 Connect your vehicle's existing power line to after-market battery terminal. Most after-market

battery terminals have two ports. See 6C

7 Connect battery terminal to battery. See 6B

6B 6C

Power

After-Market Battery Terminal (Sold Separately)

Insert power wire from amplifier

Width of Stripped Wire from End

Twist Wire

Secure terminal to vehicle's battery

1000 WATTS

4.1-CHANNEL

Drill a hole in vehicle's chassis close to amplifier for the ground connection.

1 Drill a hole in the vehicle's chassis large enough for the

supplied sheet metal screw to be fasten securely. DO NOT EXCEED DISTANCE OF SUPPLIED GROUND WIRE WHEN MARKING HOLE.

2 Use sand paper to smooth away paint from chassis to expose

the metal surface.

Setting Your Amplifier

Screw flush into vehicle's chassis

3 Position round ground wire lug over hole and insert screw.

4 Fasten screw securely to chassis as shown.

2 Loosen screw and open REMOTE connector plates on rear of amplifier.

3 Insert wire end between open REMOTE connector plates.

4 Tighten screw closing REMOTE connector plates on wire.

5 Strip fingernail width of wire from opposite end.

6 Twist exposed end.

7 Splice REMOTE wire from rear of amplifier to stereo's REMOTE, Accessory or

Power Antenna wire (Refer to your stereo's owner's manual.).

Width of Stripped Wire from End

Twis t Wire

1000 WATTS

4.1-CHANNEL

Connector

Vehicle's 12V Power Wire

+ -

Battery

TURN OVER

Secure power wires in terminal using instructions that come with unit. Hex Nut Shown

Insert 12V power wire from vehicle

After-Market Battery Terminal

Sold Seperately

1 Best Settings For Front & Rear Speakers

1 Set FRONT GAIN control just past half way.

2 Set REAR GAIN control just past half way. See Fig. 20.

FRONT GAIN

MIN MAX

REAR GAIN

MIN MAX

2 Best Subwoofer Settings

1 Turn GAIN control just past half way. 2 Turn BASS BOOST control just past half way. 3 Turn FREQ control all the way up.

4 Set PHASE switch to IN. (Optional)

PHASE

OUT IN

FREQ

30Hz 180Hz

BASS BOOST

0dB 12dB

Settings Glossary

PHASE

Set to the IN position, this switch ensures that the subwoofer functions in unison with the other speakers. However, depending on the make and model of your stereo, the OUT setting may offer better BASS.

FREQ (FREQUENCY)

This control sets the frequency and is continuously adjustable between 30Hz and 180Hz. When first adjusting, set FREQ control at 180Hz, then turn back toward 30Hz until the sound meets your listening style.

BASS BOOST

This control increases bass (Loudness).

High-Quality Shielded RCA Audio Cables Not Included

18 to 20 Gauge Remote Wire Not Included

RCA line outputs to amplifier line inputs.

To Right Subwoofer Line Input

To Left Subwoofer Line Input

"Y" Adaptors Not Included

To Right Front Line Input

To Right Rear Line Input

To Left Front Line Input

To Left Rear Line Input

8 Gauge Power Wire Not Included

Front of Amplifier

LINE INPUTS

SUB

WOOFER

Channel

Front

Battery

Chassis Ground

Ground

(Wire and Mountng Screw Included)

Subwoofer

Hole in Vehicle's Chassis

LEFT

RIGHT

Rear

Channel

Front Speakers

Left Right

POWER

PROTECTION

POWER

PROTECTION

POWER

PROTECTION

SUBWOOFER

GAIN

For best sound set the gain control just above half way.

MIN MAX

PHASE

FREQ

30Hz 180Hz

BASS BOOST

0dB 12dB

GAIN

MIN MAX

OUT IN

Frequently Asked Questions

What If the POWER PROTECTION light is GREEN?

Everything is working.

What If the POWER PROTECTION light is RED?

1 A fault, a rise in temperature or overload has occurred. 2 Check for a faulty stereo. 3 Check for short circuits. 4 Check for faulty speaker wires or wiring. 5 Check polarity (+/-) on all connections. 6 All buttons and switches should be in their proper position according to "Settings" Section. 7 If problem is still unresolved, call the toll-free number listed below.

What If the POWER PROTECTION light is not on?

1 Check that all connections to power supply are tight. 2 Make sure that the grounds are secure. 3 Make sure REMOTE connection is secure.

Should a fuse become defective or blown, replace with same amperage and style.

Recommended Wire Sizes and Types

Need Help? We'll Help You Install.

1-800-445-1797

For Information and Technical Assistance,

Call Toll-Free in U.S.A. and Canada.

PLEASE DO NOT RETURN PRODUCT TO STORE.

Call number above for assistance.

Or visit our website.

www.roadmasterusa.com

VRA4.1 Car Amplifier Specifications

ï 1000 Watts Total Peak Output Power

4 X 70 Watts RMS Into 4 Ohms @ 1 Khz & 220 (Sub) Watts RMS Into 4 Ohms @ 100 Hz (+/- 5%)

4 X 140 Watts Peak Into 4 Ohms @ 1 Khz & 440 (Sub) Watts Peak Into 4 Ohms @ 100 Hz (+/- 5%)

ï Measured at 14.4 VDC Input Voltage

ï Frequency Response: 20 Hz To 35,000 Hz +/- 3 db

ï THD: Less Than 1.0% All Channels

ï Input Sensitivity: 250 mv To 6 Volts

ï Signal To Noise Ratio: Greater Than 90 db

ï Bass Boost (Mega Bassô): Continuously Variable 0 To +12 db

ï Subwoofer Crossover Frequency: Adjustable From 30 Hz to 180 Hz

ï Front & Rear Channel Output Impedance: 4 Ohms

ï Subwoofer Channel Output Impedance: 4 Ohms Minimum

ï 3 X 30 amp Automotive Blade Type Fuse

ï Dimensions: 17î L X 10ºî W X 2î H or 508mm L X 263mm W X 50.8mm H

Speaker Wire Not Included. Wire colors shown for illustration purposes only. Wire colors vary by manufacturer.

Left Right

Rear Speakers

Congratulations! You have just installed

the VRA4.1 Amplifier to your sound system.

See Reverse Side For More Detailed Instructions

Limited Warranty

VIRTUAL REALITY SOUND LABS products are designed and manufactured to provide a high level of trouble-free performance. VIRTUAL REALITY SOUND LABS warrants, to the original purchaser, that its products are free from defects in material and workmanship for 30 days from the date of original purchase, as part of our commitment to product excellence. VIRTUAL REALITY SOUND LABS routinely improves the designs, materials or production methods of its existing products. Because it is impractical to publicize all changes in every product, we reserve the right to make such changes without notice.

CONDITIONS OF WARRANTY:

If during the 30 day warranty period your new product is found to be defective, VIRTUAL REALITY SOUND LABS will repair such defect, or replace the product, without charge for parts or labor subject to the following conditions:

1. All repairs must be performed by VIRTUAL REALITY SOUND LABS in Eatontown, New Jersey.

2. The equipment must not have been altered or been damaged through negligence, accident, or improper operation.

3. The replacement of parts are exempted from this warranty when replacement is necessary due to normal wear and tear.

4. All warranty claims must be accompanied by a copy of the sales receipt or bill of sale.

5. Repair or replacement parts supplied by VIRTUAL REALITY SOUND LABS under this warranty are protected only for the unexpired portion of the original warranty.

6. In the case of car stereos, this warranty does not extend to the elimination of car static or motor noise; correction of antenna problems; costs incurred for the removal or reinstallation of the product; damage to tapes, speakers, accessories or car electrical systems.

7. VIRTUAL REALITY SOUND LABS will not be responsible for any charge incurred for installation.

OWNER'S RESPONSIBILITIES:

VIRTUAL REALITY SOUND LABS will make every effort to provide warranty service within a reasonable period of time. SHOULD YOU

HAVE ANY QUESTIONS ABOUT SERVICE RECEIVED, OR IF YOU WOULD LIKE ASSISTANCE IN OBTAINING SERVICE, PLEASE CALL TOLL FREE 1-800-445-1797, 8:30am - 4:30pm EST.

In order to provide you with the proper warranty service, we request that you adhere to the following procedure:

1. Include a copy of your sales receipt or bill of sale with your unit when it is returned for warranty service.

2. If it is necessary to return your product for service, please return it securely packed, preferably in the original shipping carton, and freight

and insurance prepaid to the following address: VIRTUAL REALITY SOUND LABS, Service Department, 6 G Industrial Way West, Eatontown, New Jersey 07724.

3. Please include a detailed explanation of the problem you are having.

4. If your product is found by VIRTUAL REALITY SOUND LABS to have a defect in material or workmanship, within the warranty period, it will

be repaired or replaced at no charge and returned to you prepaid. Where permitted by Iaw VIRTUAL REALITY SOUND LABSíS liability shall be limited to that set forth in this warranty. This warranty shall be the exclusive remedy of the purchaser.

VIRTUAL REALITY SOUND LABS makes no other warranty of any kind, expressed or implied; and all implied warranties, are hereby disclaimed by VIRTUAL REALITY SOUND LABS and excluded from this warranty, VIRTUAL REALITY SOUND LABS, the manufacturer, distributor and seller shall not be liable for any injury, loss or damage, incidental or consequential, arising out of the use or intended use of the product.

2003

Virtual Reality Sound Labs

property of

. All designs, logos and images are the exclusive

Rev. 081903Printed in China 00000