Roadmaster VRA1.0 Stereo Amplifier User Manual
Contents
1. carpeting dashboards or other components of your vehicle please call our toll free help line 800 445 1797 and our in house technical service team will answer your installation questions Tools Needed For Installation e Nail Set Center Punch e Hammer e Safety Glasses e Electrical Tape e Phillips Screwdriver e Wire Cutter e Marker Pen e Electric Drill with 1 16 bit We recommend an Amplifier Installation Kit containing the following parts e Power Wire 8 Gauge w Terminal Lug e Speaker Wire 16 to 12 Gauge e RCA Cables amp Y Adaptors e Remote Wire 20 Gauge OK e Input Wires Shielded RCA cables e After Market Battery Terminal Location When choosing a location for the amplifier keep in mind that the amplifier will generate heat Place the amplifier in a location that allows air to circulate around it Amplifier location and installation will vary from vehicle to vehicle depending on physical layout of the vehicle Carefully consider as many installation locations and configurations as is practically possible DO NOT COVER the amp with carpet or enclose it behind interior panels DO NOT mount inverted or upside down The amplifier may be mounted vertically Before permanently installing your VRA1 0 Amplifier place the VRA1 0 Amplifier in the approximate place it will occupy in your car Run all power and speaker wires inside the vehicle toward the amplifier prior to mounting This will allow you to estimate how much wire you ll need a2. converts them to high level low impedance signals to be used to drive the speakers All of the amplifiers line inputs need to be connected to the car stereo in order to use all of the speaker outputs FIGURE 1 Speaker amp Antenna wires Generic Car Stereo Left Channel Right Channel Shielded RCA Cable The pre amp line outputs allow unamplified signals to pass through the amplifier to be used in a multiple amplifier stereo system LEFT CHANNEL RIGHT CHANNEL uE FRONT OF AMPLIFIER Adaptors amp Cables RCA Y Adaptors Not Included Your car stereo may only has 2 line outputs left amp right RCA Y Adaptors will be needed to split the left and right signals into 2 right channels and 2 left channels one of each channel for both the front and rear inputs See Fig 1 Shielded RCA Cable Not Included For best sound performance use Shielded RCA Cables to connect the Line Outputs from your stereo to the Amplifier Line Inputs Shielded RCA Cables prevent electrical interference from the vehicles electrical system and also radio frequency interference High Level to Low Level Input Adaptor Not Included If your stereo does not have RCA type output jacks a high level to low level adaptor will need to be purchased The high level to low level adaptor takes the signals from the car stereo s speaker wires and converts them to low level high impedance signals to _ ies be used by the amplif
3. 250 Hz to the subwoofer As you turn the FREQ to the left counterclockwise you will be cutting off the high frequencies coming from the subwoofer FREQ BASS BOOST o The BASS BOOST switch adds an additional 6dB at 50Hz It normally is set to OFF Turning or OX ON BASS BOOST will not make the bass sound better it only adds volume to the lowest BASS BOOST frequency Bass Boost should not be turned on if you have Bass Control or Loudness on your optional stereo head unit 6 Wiring One Single Voice Coil Subwoofer 4 OHM SUBWOOFER To wire a 4 ohm single voice coil subwoofer to as the amplifier connect the amplifiers positive Je terminal to the subwoofer s positive terminal Then connect the amplifiers negative terminal to the subwoofer s negative terminal sew Q DO NOT WIRE 2 SUBWOOFERS IN PARALELL Two Single Voice Coil Subwoofers To wire two single voice coil 4 ohm subwoofers in series connect the amplifiers positive terminal to the it positive terminal of subwoofer A Next connect the negative terminal of subwoofer A to the positive terminal of subwoofer B Then connect the negative terminal of the amplifier to the negative terminal of subwoofer B Subwoofer A Subwoofer B sale This Is The Only Safe Way To Connect Two 4 Ohm Subwoofers To The VRA1 0 Amplifier One Dual Voice Coil Subwoofer To wire a dual voice coi
4. VRA1 0 Mono Block Subwoofer Amplifier y eT P i i Wiga e ma Virtual Reality Sound Labs SERIOUS SOUND Read First Dear Customer CONGRATULATIONS The VRA1 0 Mono Block Subwoofer Amplifier 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 0 Mono Block Subwoofer Amplifier 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 TOLL 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 roadmasterusa 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 problem with you If your product needs warranty service our technical service team representative will help you obtain the fastest remedy possible under the warranty Specifications e 300 Watts Total Peak Power e Input Sensitivity 250 mV to 6 Volts e 300 Watts Peak into 4 Ohm lt 1 0 THD 5 e 150 Watts RMS into 4 Ohm lt 1 0 THD 5 e Measured at 14 4 VDC Input Voltage e F
5. ake dimple marks on the mounting the 4 mounting brackets with a marker pen surface for each mounting screw d Drill 4 pilot holes with electric drill and 1 16 bit Make sure there is nothing behind mounting surface that can be damaged when drilling the holes Safety glasses should be worn at this time yore Secure amplifier with included screws and washers using Phillips screwdriver When mounting the amplifier make sure there is enough room for access to make adjustments to the switches and adjustment screws 3 Electrical Connections wey 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 o 1 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 VEHICLE S NEGATIVE BATTERY TERMINAL FROM THE NEGATIVE BATTERY POST 2 Strip 2 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 After Market Positive Terminal To Amplifier Power Terminal j Vehicle s Positive In line 35 amp Fuse or Cir
6. cuit Breaker 12 Volt power cable not included 3 Install a 35 amp fuse or 35 amp circuit breaker in the 8 gauge power wire as close to the battery as practical 4 Then route the 8 gauge power wire from the 30 amp fuse or circuit breaker to the rear of the amplifier 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 8 Gauge wire 7 Loosen screw to open POWER connector plates on rear of amplifier 8 Insert the spade lug between between the connector plates Turn screw until power cable is tight 2 Remote Terminal 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 1 Locate the REMOTE ACCESSORY or POWER ANTENNA on the stereo Refer to your stereo owner s manual 2 Splice REMOTE ACCESSORY or POWER ANTENNA wire from rear of the stereo to a length of wire that will reach the rear of the amplifier 3 Loosen screw and open REMOTE connector plates on rear of amplifier 4 Insert wire end between the REMOTE connector plates 5 Tighten screw closing REMOTE connector plates on wire 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 amplifier as possible 3 Drill a pilot hole with a 1 16 drill bit 4 Use sandpa
7. est 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 law VIRTUAL REALITY SOUND LABS 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 and or it s affiliates 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 2005 Virtual Reality Sound Labs All designs logos and images are the exclusive property of Virtual Reality Sound Lab
8. ier Install the converter according to the manufacturers instructions ww Do not splice RCA jacks directly to the car stereo s speaker wires Unused Speaker Wires from Head Unit i OTe The colors of the jacks on the RCA cables and adaptors shown here O M are for illustration purposes You must trim the unused speaker wires on the stereo and The color of the cables and adaptors wrap with electrical tape as shown to prevent a short circuit that you purchase for installation will vary by manufacturer 5 Amplifier Settings GAIN Control The GAIN control matches the line output of your car stereo s RCA jacks to the line inputs of 7 the amplifier When you have completed installing the amplifier the gain control must be set at mX tie no more than half way to prevent damage to the amplifier Play a CD or cassette on the car stereo set the BASS and TREBLE at 50 and set the equalizer if you have one to flat across all frequencies also set the left amp right balance and front amp rear fader settings are set in the middle If you have any distortion at these setting then turn the gain down until the distortion disappears GAIN Frequency Adjustment Screw The frequency adjustment screw FREQ only has an effect if the crossover switch is set to Dr BASS or TREBLE when the crossover is set to FLAT it has no effect M To set the FREQ turn FREQ all the way to the right this allows a range of sound from 50 Hz De
9. l subwoofer connect the amplifier s positive terminal to the positive terminal of voice coil A Next connect the negative terminal of voice coil A to the postive terminal of voice coil B Then connect the negative terminal of the amplifier to the negative terminal voice coil B Voice Coil B Frequently Asked Questions What is the per channel RMS power of this amplifier 150 Watts RMS into 4 Ohm lt 1 0 THD 5 Can I hook up two subwoofers to this amplifier Only if both subwoofers are wired in series What if my car radio doesn t have RCA line outputs You will need a converter used to change the signals from the speaker wires to RCA line level inputs Follow the converter manufacturer s installation instructions What should I do if my car radio doesn t have a remote wire Connect the amplifier remote terminal to a switched 12 Volt circuit controlled by the ignition switch This will turn the amplifier off when the ignition switch is turned off Do need a stiffening capacitor with this amplifier It never hurts to have extra reserve power when operating an amplifier of this caliber The VRPC1000 Power Capacitor is the perfect companion to the VRA2 0 Amplifier Why does the Power Protect LED switch between green amp red Check your POWER and GROUND connections Also check to see that your wire size is sufficient to carry the current demand Check for improper impedance load
10. nd 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 amplifier if the Power Protection light is green turn off the amplifier 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 after reviewing all the connections and wires the problem persists call our toll free help line for assistance RN V A Allow for air to circulate around the amplifier Do not mount inverted or upside down Do not cover with carpeting or enclose it behind interior panels Avoid mounting under a seat GIVE US A CALL WE LL HELP YOU INSTALL For Information and Technical Assistance Call Toll Free in U S A and Canada 1 800 445 1797 PLEASE DO NOT RETURN PRODUCT TO STORE visit us on the WEB WWW VR 3 COM Water Damage Do not install this amplifier in a location that will expose it to water or moisture Dust or Dirt Do not install this amplifier in a location that will expose it to dusty or dirty conditions Modifications Do not open the amplifier for any reason or modify the amplifier in any way If modified in any way a fire hazard or malfunction may occur Modification will void the warranty With a hammer and nail set center punch Mark the holes for the 4 mounting screws in m
11. per 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 O You may purchase shielded RCA cables that have a remote wire that is built right into the cable This type of cable makes it possible to route both RCA cable and remote wire at the same time Recommended Method For Attaching Wires to Terminals 1 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 To connect the remote wire place the twisted end under the contact plate and tighten screw 3 GROUND WIRE To connect the supplied ground wire remove the screw and contact from the ground terminal on the rear of the amplifier Put the screw through the contact plate then through the ground wire and finally 1 POWER E 2 REMOTE WIRE tighten the screw 3 GROUND WIRE 2005 Virtual Reality Sound Labs All designs logos and images are the exclusive property of Virtual Reality Sound Labs and or its affiliates Design Patent Pending All rights reserved 050505 4 RCA Line Inputs The line inputs on the front of the amplifier receive low level high impedance signals from the low level RCA outputs of the car stereo The amplifier receives the signals and
12. requency Response 20 Hz to 300 Hz 3 db e THD Less than 1 e Dimensions 2 H X 10 25 W X 9 25 D S e 1 Ground Wire Bante e 1 Self Tapping Screw Features amp Functions LULL e 12 Wire Nuts e Signal to Noise Ratio Greater than 95 db e Bass Boost Mega Bass 0 or 6 db e Adjustable Crossover Freq 50 Hz to 250 Hz e Output Impedance 4 Ohm Recommended e Fuse 30 Amp Automotive Blade Type e Dimensions 5 08cm H x 26 04cm W x 23 5cm D WH e 4 Mounting Screws OOOO e 4 Flat Washers e 30 Amp Fuse __ e Spade Terminal e Crossover Frequency Adjustment Freq FRONT OF UNIT FREQ 7 et 20Hz 300Hz OFF ON BASS BOOST e Bass Boost REAR OF UNIT 4 OHM SUB WOOFER a POWER PROTECTION e Terminals for One 4 OHM Subwoofer sy Protection Connection Indicator Light e Gain Adjustment GAIN INPUT UN OUT GAIN a LEFT ii a C RIGHT MIN e RCA Outputs To Be Used With Multiple Amps e RCA Inputs Fy 30 Amp Fuse MOSFET POWER SUPPLY POWER REMOTE GROUND e Terminals for 12 Volt DC Power Remote Switch And Chassis Ground e Power Q FOR USE WITH 4 to 8 OHM SUBWOOFERS ONLY 1 Preinstallation Automotive audio equipment installations can be troublesome at times even to the most experienced of installation technicians If you are not confident working with electrical wiring removing and reinstalling interior panels
13. s Why does the Power Protect LED stay red This typically indicates that one or more of the MOSFET output transistors has shorted This condition will not fix itself The amplifier must be returned to Virtual Reality Sound Labs for repair Why don t I have any sound when the protection light is green Check the controls on the stereo make sure that the volume balance and fader controls are set properly Also check or replace the RCA cables They may be defective GIVE US A CALL WE LL HELP YOU INSTALL For Information and Technical Assistance Call Toll Free in U S A and Canada 1 800 445 1797 PLEASE DO NOT RETURN PRODUCT TO STORE visit us on the WEB WWW VR 3 COM 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 and or it s affiliates 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
14. s and or its affiliates Design Patent Pending All rights reserved 050505 Printed in China 00000
15. 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 and or it s affiliates 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 requ
Download Pdf Manuals
Related Search