12-2018.fm Page 1 Friday, May 12, 2000 12:46 PM Please read before using this equipment. Owner’s Manual XL-400 High Power 4/3/2-Channel Bridgeable Amplifier 12-2018.fm Page 2 Friday, May 12, 2000 12:46 PM ˆ Contents Features .................................................................................................................................. 3 Preparation ............................................................................................................................. Supplied Hardware ............................................................................................................ Choosing a Mounting Location .................................................................................. Preparing the Mounting Area ..................................................................................... Routing Cables and Wires ......................................................................................... Installation Order ............................................................................................................... Before You Make the Connections .................................................................................... Connecting Ground and Switched/Primary Power ............................................................ 4 4 4 5 5 5 5 6 Connecting Inputs .................................................................................................................. 8 Low-Level Inputs ............................................................................................................... 8 High-Level (Speaker Wire) Inputs ..................................................................................... 9 Four Speaker Outputs ............................................................................................. 10 Two Speaker Outputs .............................................................................................. 11 Connecting Speakers ...................................................................................................... 12 Preparing the Speaker Wires ................................................................................... 12 Connecting Four Speakers ...................................................................................... 13 Connecting Two Speakers (Unbridged Connection) ................................................ 13 Connecting Two Speakers (Bridged Connection) .................................................... 14 Connecting Two Speakers and One Subwoofer (Unbridged Connection) ............... 14 Connecting Two Unbridged Speakers and One Bridged Subwoofer ....................... 15 Completing the Installation ................................................................................................. 16 Testing the Connections .................................................................................................. 16 Mounting the Amplifier .................................................................................................... 16 Operation .............................................................................................................................. Turning On the Amplifier ................................................................................................. Adjusting the Audio Level ................................................................................................ Adjusting Frequency Crossover ...................................................................................... 18 18 18 19 Troubleshooting ................................................................................................................... Care ................................................................................................................................ Replacing a Fuse ............................................................................................................ Replacing the SFE-Type Fuse ................................................................................. Replacing the Blade-Type Fuses ............................................................................. 20 21 21 21 21 Specifications ....................................................................................................................... 23 © 2000 Tandy Corporation. All Rights Reserved. RadioShack and RadioShack.com are trademarks used by Tandy Corporation. 2 12-2018.fm Page 3 Friday, May 12, 2000 12:46 PM ˆ Features Your RadioShack High Power 4/3/2-Channel Bridgeable Amplifier produces a total of 400 watts to give added punch and power to your vehicle’s existing auto sound system. The amplifier produces up to 200 watts per channel (if bridged) of clean, powerful sound at all audio frequencies with minimum distortion. You can connect your auto sound system’s low-level or speaker-level outputs to this amplifier. Its features include: 14K Gold-Plated Noise-Isolated Low-Level Input Jacks — let you connect low-level (preamplifier) signal inputs to match your auto sound system’s output for the best highfidelity performance. 14K Gold-Plated Speaker Terminals — designed for low impedance, high conductivity, and minimum corrosion, to provide the highest signal transfer and lowest sound distortion. Input Level Controls — let you adjust the level of the audio signals that enter the amplifier. Automatic Power Switching — can automatically turn the amplifier on or off when you turn your auto sound system on or off (depending on how you hook up the amplifier). Bridging Capability — lets you combine the amplifier’s four 100-watt channels so you can use the amplifier with only two channels that produce a total of 200 watts from each channel. Mute Turn On Circuit — eliminates the thump you hear when you turn on some amplifiers. Power Indicator — lights when power is supplied to the amplifier. Protection Indicator — lights if the amplifier shuts itself down. Crossover Frequency Circuit — lets you adjust the crossover frequency from 45–400 Hz. This lets you set up the amplifier so you can connect a subwoofer. Short Circuit Protection — distorts the amplifier’s sound if any output channel shorts, alerting you to turn off the auto sound system. Auto-Off — temporarily shuts down the amplifier to protect the amplifier from overheating or input overloads. The amplifier restarts automatically when it cools or the problem is corrected. THE FCC WANTS YOU TO KNOW Your amplifier might cause TV or radio interference even when it is operating properly. To determine whether your amplifier is causing the interference, turn off your amplifier. If the interference goes away, your amplifier is causing it. Try to eliminate the interference by: • moving your amplifier away from the receiver • contacting your local RadioShack store for help If you cannot eliminate the interference, the FCC requires that you stop using your amplifier. Features 3 12-2018.fm Page 4 Friday, May 12, 2000 12:46 PM ˆ Preparation SUPPLIED HARDWARE Your amplifier comes with the following items. Be sure you locate everything shown before you store or dispose of the packing materials. Power Wire (Red) (1) Ground Wire (Black) (1) Remote Wire (Blue/White) (1) Flat Washers (4) 4-Pin Connector with Wire (2) Sheet Metal Screws (4) Twist-On Terminal Connectors (9) Lock Washers (4) BEFORE YOU BEGIN THE INSTALLATION Also, be aware that installation in your vehicle might require cutting or modifying your vehicle. Before you install your amplifier, read all the instructions in this owner’s manual. You should be able to answer all of these questions about your vehicle’s electrical and auto sound systems. • Does my vehicle have an auto sound system, such as a car stereo or CD player, already installed? (You must have an existing auto sound system to use this amplifier.) Choosing a Mounting Location A good location for mounting the amplifier is in your vehicle’s trunk. Wherever you decide to mount it, choose a mounting location that: • Does not interfere with the vehicle’s operation • Lets you drill mounting holes without damaging other vehicle components • How do I connect a wire to the fuse box? • Which of the auto sound system’s wires is the power wire? • Which of the auto sound system’s terminals are low-level outputs and which are high-level (speaker) outputs? 4 • Allows enough space around the cooling fins for proper airflow and cooling • Lets you easily see the amplifier’s POWER and PROTECTION indicators Preparation 12-2018.fm Page 5 Friday, May 12, 2000 12:46 PM Warning: The amplifier gets very hot while it is on. Do not touch the amplifier or place flammable objects near it. Preparing the Mounting Area Before you mount the amplifier, make sure you have these materials. • an adapter harness Then test the connections. When you verify that everything works as expected, disconnect the amplifier, mount it in your vehicle, and reconnect it. Caution: If you do not make the connections in the order shown, damage to the amplifier and your auto sound system is possible if any wire connections are made incorrectly. Note: For easier installation, mark each wire you plan to connect with the name of the terminal you will connect it to. • additional wire • shielded audio cables • 16- or 18-gauge marked or color-coded wires Then confirm that the amplifier fits in your vehicle’s available mounting area. This amplifier requires a 51/2-inch high by 131/2-inch wide by 171/2-inch deep (13.9 × 34.3 × 43.1 cm) mounting area with adequate ventilation space. Routing Cables and Wires Avoid routing the connection cables and any speaker wires near moving parts or sharp edges. You can usually route wires and cables along the wiring channel beneath the vehicle’s door facings by carefully removing the molding that holds the carpet in place. After routing the cables and wires, replace the molding. INSTALLATION ORDER For trouble-free installation, simply follow the sections in this owner’s manual in order. First make all the connections by temporarily connecting the amplifier to: 1 Ground and power 2 Your auto sound system’s outputs 3 Your speakers BEFORE YOU MAKE THE CONNECTIONS The supplied connection cables include all the lead wires you need to connect the amplifier to ground, power, and your existing auto sound system. Important: • Do not cut these wires. If you cut any wire, you cannot obtain a refund or exchange on this product. However, RadioShack will provide warranty service if you cut a wire and find the product is defective. • If the connectors on your vehicle’s auto sound system are not compatible with the amplifier’s connectors, you might need an adapter harness to complete the connections. RadioShack stores sell adapter harnesses for most vehicles. You might need additional wire, depending on your individual auto sound system, to complete the connections. Your local RadioShack store carries a full line of wire and wire management accessories. Preparation 5 12-2018.fm Page 6 Friday, May 12, 2000 12:46 PM Cautions: 100 watts per channel if you connect your auto sound system to two pairs of speakers or one pair of speakers and a subwoofer). Each speaker must have an impedance of at least 4 ohms. Your local RadioShack store carries a full line of speakers. • For added safety and to protect your amplifier and auto sound system, disconnect the cable from your vehicle’s negative (–) battery terminal before you begin. • Be sure your speakers can handle as much as 400 watts of power (200 watts per channel if you connect your auto sound system to one pair of speakers and bridge the amplifier’s outputs, or To make it easier to gauge wire length and connect the amplifier, temporarily place the amplifier as close as possible to the selected mounting location. CONNECTING GROUND AND SWITCHED/PRIMARY POWER Fuse Holder Blue/White Red Black Vehicle’s Battery Chassis Ground Switched Power Lead Auto Sound System Follow these steps to connect the amplifier to ground, switched power, and primary power. insulated from the chassis by a plastic part. 1. If you have not done so already, disconnect the cable from your vehicle’s negative (–) battery terminal. 4. Use a screwdriver to connect the spade end of the supplied blue/white wire to the amplifier’s REM (remote power) terminal. 2. Use a screwdriver to connect the spade end of the supplied black ground wire to the amplifier’s GND (ground) terminal. 3. Connect the black ground wire’s other end to a chassis ground, such as a metal bolt attached to a metal part of the vehicle’s frame. Be sure the bolt is not 6 5. If your auto sound system has a switched power lead, connect the blue/ white wire’s other end to your auto sound system’s switched power lead using one of the supplied twist-on terminal connectors. Preparation 12-2018.fm Page 7 Friday, May 12, 2000 12:46 PM This connection turns on the amplifier when you turn on the auto sound system, and turns off the amplifier when you turn off the auto sound system. This prevents your vehicle’s battery from being drained if you leave your amplifier on when you turn off your auto sound system. If your auto sound system does not have a switched power lead, connect the blue/white wire’s other end to a point in your vehicle’s fuse block that has power only when you turn on the ignition or turn the key to ACC. This connection turns on the amplifier when you turn on the ignition or turn the key to ACC, and turns off the amplifier when you turn off the ignition. This prevents your vehicle’s battery from being drained if you leave your amplifier on when you turn off the ignition. 6. Use a screwdriver to connect the spade end of the supplied red power cable (with in-line fuse holder) to the amplifier’s + 12V terminal. 7. Connect the other end of the red power cable to your vehicle’s positive (+) battery terminal. Then tighten the terminal. Caution: Due to the amplifier’s high current requirement, you must connect the red power cable’s fused end directly to the vehicle’s positive (+) battery terminal or damage to your vehicle’s wiring could result. Do not reconnect your vehicle’s negative (–) battery cable yet. Preparation 7 12-2018.fm Page 8 Friday, May 12, 2000 12:46 PM ˆ Connecting Inputs LOW-LEVEL INPUTS (Speaker Wire) Inputs” on Page 9 to connect your amplifier. You can connect your auto sound system’s low-level line out jacks to the amplifier’s lowlevel line in jacks. Note: For the best results, use shielded audio cables (not supplied) available at your local RadioShack store. If your auto sound system does not have low-level line out jacks, see “High-Level 1. Temporarily place the amplifier as close as possible to the selected mounting location. CH 2 CH 1 CH 3 CH 4 2. If your auto sound system has four separate line out jacks, connect the auto sound system to the amplifier. Right Rear Right Front Auto Sound System Left Rear 8 Left Front Connecting Inputs 12-2018.fm Page 9 Friday, May 12, 2000 12:46 PM CH 2 CH 1 CH 4 CH 3 If your auto sound system has two line out jacks (left and right), connect the auto sound system to the amplifier. Left Right Auto Sound System Note: For the best results, use shielded audio Y-adapters (not supplied) available at your local RadioShack store. HIGH-LEVEL (SPEAKER WIRE) INPUTS using either a floating or common ground connection. If your auto sound system does not have low-level line out jacks but has only speaker outputs, connect your auto sound system’s speaker outputs to the amplifier’s HIGH INPUT jacks. • If your auto sound system has four speaker outputs, see “Four Speaker Outputs” on Page 10 to connect your system’s speaker outputs to the amplifier using either a floating or common ground connection. Note: A floating ground connection lets the amplifier provide more power to each speaker, but requires that you connect a separate wire to each speaker terminal. A common ground connection lets you use fewer wires to connect the speakers to the amplifier, but reduces the amount of power supplied to the speakers from the amplifier. Use the supplied wire harnesses and the supplied twist-on terminal connectors to make the appropriate connections. • If your auto sound system has two speaker outputs, see “Two Speaker Outputs” on Page 11 to connect your system’s speaker outputs to the amplifier Connecting Inputs 9 10 Auto Sound System Connecting Inputs White Gray/Black Left Front + Speaker Left Front – Speaker White Gray Green Violet Gray/Black Left Front + Speaker Green/Black Right Front– Speaker Right Front + Speaker Left Rear + Speaker Left Rear – Speaker Right Rear– Speaker Right Rear + Speaker Green/Black Common Gray Violet/Black Right Front + Speaker Green Violet Violet/Black Left Rear + Speaker Common Right Rear + Speaker 12-2018.fm Page 10 Friday, May 12, 2000 12:46 PM Four Speaker Outputs Floating Ground Connection White/Black Auto Sound System Common Ground Connection White/Black 12-2018.fm Page 11 Friday, May 12, 2000 12:46 PM Two Speaker Outputs Floating Ground Connection Green/Black Left – Speaker Right – Speaker Right + Speaker White Left + Speaker Green Violet ay White/ Black Gr Gray/ Black Violet/Black Auto Sound System Common Ground Connection Violet/Black Green/Black White White/ Black Left + Speaker Gray/ Black Green Common Right + Speaker Violet ay Gr Auto Sound System Connecting Inputs 11 12-2018.fm Page 12 Friday, May 12, 2000 12:46 PM CONNECTING SPEAKERS You can connect four speakers, two speakers and a subwoofer, or just two speakers to the amplifier and your auto sound system. 3. Strip the insulation from the ends of each conductor to expose 1/4 inch of wire. Twist the ends to secure loose strands. Important: Before you make the connections, make sure both BRG/ST switches (on the left and right sides of the amplifier) are set to ST. Conductors 1/4 4 Inches Preparing the Speaker Wires Caution: You must connect a separate wire to each speaker terminal as described in the following procedures. Only use a common ground wire or chassis ground if your auto sound system is wired for it. Notes: • Use 16- or 18-gauge marked or colorcoded wires to help you correctly connect the speakers to your amplifier. • Color-coded wires have a stripe running down one of the conductors or different colored insulation for each conductor. Your local RadioShack store has a wide selection of speaker wire. • For the maximum bass response and the best overall performance, keep your speakers properly phased (connect + to + and – to –). 1. With the speakers placed in their approximate locations, run one wire from each speaker to the amplifier. If you are connecting a subwoofer, run two wires from each of the subwoofer’s terminals to the amplifier. 2. Separate each wire’s two conductors at both ends for a length of about 4 inches. 12 Connecting Inputs Inch 12-2018.fm Page 13 Friday, May 12, 2000 12:46 PM Connecting Four Speakers CH1 Front Left Speaker CH2 Front Right Speaker CH3 Rear Left Speaker 1. Use a screwdriver to connect the front left speaker’s positive (+) wire to the amplifier’s CH1 (+) terminal. 2. Use a screwdriver to connect the front left speaker’s negative (–) wire to the amplifier’s CH1 (–) terminal. CH4 Rear Right Speaker (–) wires to the amplifier’s CH2 (+) and CH2 (–) terminals. 4. Repeat Steps 1–3 to connect the rear left and rear right speaker’s positive (+) and negative (–) wires to the amplifier’s CH3 (+), CH3 (–), CH4 (+), and CH4 (–) terminals. 3. Repeat Steps 1–2 to connect the front right speaker’s positive (+) and negative Connecting Two Speakers (Unbridged Connection) Left Speaker Right Speaker This connection produces 100 watts per channel. Use this connection if you do not have high-power speakers. 2. Use a screwdriver to connect the left speaker’s negative (–) wire to the amplifier’s CH3 (–) terminal. 1. Use a screwdriver to connect the left speaker’s positive (+) wire to the amplifier’s CH3 (+) terminal. 3. Repeat Steps 1–2 to connect the right speaker’s positive (+) and negative (–) wires to the amplifier’s CH4 (+) and CH4 (–) terminals. Connecting Inputs 13 12-2018.fm Page 14 Friday, May 12, 2000 12:46 PM Connecting Two Speakers (Bridged Connection) Left Speaker Caution: This connection produces 200 watts per channel. Use this connection only if you have high-power speakers that can handle a power output of 200 watts. Note: CH2 (+) and CH4 (+) are used as negative (–) terminals for a bridged connection. 1. Use a screwdriver to connect the left speaker’s positive (+) wire to the amplifier’s CH1 (+) terminal. Right Speaker 2. Use a screwdriver to connect the left speaker’s negative (–) wire to the amplifier’s CH2 (+) terminal. 3. Repeat Steps 1–2 to connect the right speaker’s positive (+) and negative (–) wires to the amplifier’s CH3 (+) and CH4 (+) terminals. 4. Set both BRG/ST switches (on the left and right sides of the amplifier) to BRG. Connecting Two Speakers and One Subwoofer (Unbridged Connection) Or CH1 Front Left Speaker CH2 Front Right Speaker 1. Use a screwdriver to connect the front left speaker’s positive (+) wire to the amplifier’s CH1 (+) terminal. CH3 Rear Subwoofer 3. Repeat Steps 1–2 to connect the front right speaker’s positive (+) and negative (–) wires to the amplifier’s CH2 (+) and CH2 (–) terminals. 2. Use a screwdriver to connect the front left speaker’s negative (–) wire to the amplifier’s CH1 (–) terminal. 14 CH4 Rear Subwoofer Connecting Inputs 12-2018.fm Page 15 Friday, May 12, 2000 12:46 PM 4. Use a screwdriver to connect the subwoofer’s positive (+) wire to the amplifier’s CH3 (+) or CH4 (+) terminal. 5. Repeat Step 4 to connect the subwoofer’s negative (–) wire to the amplifier’s negative (–) terminal for the same channel you connected in Step 4. For example, if you connected the subwoofer’s positive (+) wire to the amplifier’s CH3 (+) terminal, connect the subwoofer’s negative (–) wire to the amplifier’s CH3 (–) terminal. Connecting Two Unbridged Speakers and One Bridged Subwoofer CH1 Front Left Speaker CH2 Front Right Speaker Note: CH4 (+) is used as a negative (–) terminal for a bridged connection. 1. Use a screwdriver to connect the left front speaker’s positive (+) wire to the amplifier’s CH1 (+) terminal. Subwoofer 6. Make sure the BRG/ST switch on the right side of the amplifier is set to ST, then set the BRG/ST switch on the left side of the amplifier to BRG. 2. Use a screwdriver to connect the left front speaker’s negative (–) wire to the amplifier’s CH1 (–) terminal. 3. Repeat Steps 1–2 to connect the right front speaker’s positive (+) and negative (–) wires to the amplifier’s CH2 (+) and CH2 (–) terminals. 4. Use a screwdriver to connect the subwoofer’s positive (+) wire to the amplifier’s CH3 (+) terminal. 5. Repeat Step 4 to connect the subwoofer’s negative (–) wire to the amplifier’s CH4 (+) terminal. Connecting Inputs 15 12-2018.fm Page 16 Friday, May 12, 2000 12:46 PM ˆ Completing the Installation TESTING THE CONNECTIONS and auto sound system operate properly. The amplifier turns on after a few seconds. Before you continue, make sure you have securely made all connections. Then reconnect the cable to the vehicle’s negative (–) battery terminal. If you cannot quickly confirm whether the auto sound system and amplifier are working properly, turn off your vehicle’s ignition and disconnect the cable from your vehicle’s negative (–) battery terminal. Then recheck your connections. Set LEVEL (MIN/MAX) on the left and right sides of the amplifier to its mid position (see “Adjusting the Audio Level” on Page 18). Then turn on your vehicle’s ignition and auto sound system to confirm that the amplifier After you test the auto sound system and amplifier and verify that everything is properly connected and working, follow the instructions in “Mounting the Amplifier.” MOUNTING THE AMPLIFIER Sheet Metal Screw Lock Washer Flat Washer 9/64-Inch Mounting Hole Once you verify that the amplifier is connected properly, follow these steps to mount it. 1. Disconnect the cable from the vehicle’s negative (–) battery terminal. 2. To make mounting more convenient, temporarily disconnect the amplifier’s connections (ground, primary power, remote power, your auto sound system’s input, and speakers). 16 Chassis or Car Mat Note: If you have not already done so, be sure to mark each wire with the name of the terminal you will reconnect it to. 3. Using the mounting holes on the amplifier as a guide, mark the positions for the mounting holes. 4. Drill 9/64-inch (3.57 mm) holes at the marked locations, being careful not to damage anything behind the mounting surface. Completing the Installation 12-2018.fm Page 17 Friday, May 12, 2000 12:46 PM 5. Secure the amplifier to the mounting surface using the supplied sheet metal screws and washers. 6. Reconnect the wiring. 7. Reconnect the cable to the vehicle battery’s negative (–) terminal. 8. Reset your vehicle’s clock, your auto sound system’s tuner memory, and other timer/memory devices. Completing the Installation 17 12-2018.fm Page 18 Friday, May 12, 2000 12:46 PM ˆ Operation TURNING ON THE AMPLIFIER 1. Use a screwdriver to turn LEVEL (MIN/ MAX) on the left and right sides of the amplifier fully counterclockwise to MIN. The amplifier automatically turns on a few seconds after you turn your vehicle’s ignition switch to ACC or ON or turn on your auto sound system, depending on how you wired the system. The POWER indicator on the side of the amplifier lights when the amplifier is on. 2. Turn the auto sound system’s volume control to about one-third of its full range. 3. On the left and right sides of the amplifier, adjust LEVEL (MIN/MAX) to a comfortable listening level. Important: Your amplifier requires 60 amps or more of power from your vehicle’s battery during operation. To protect your battery from discharging, do not operate the amplifier unless your vehicle is running. 4. Turn up the auto sound system’s volume control until the sound begins to distort. Then immediately turn the volume down to a point just before where the distortion began. Note: Your amplifier temporarily shuts down if it gets too hot, then restarts automatically once it cools. Caution: Never turn up the auto sound system’s volume control more than needed to adjust the audio level, or more than two-thirds of its maximum volume. ADJUSTING THE AUDIO LEVEL For the best performance, you must set LEVEL (MIN/MAX) on the left and right sides of the amplifier to adjust the level of the audio signals that enter the amplifier. 5. On the left and right sides of the amplifier, adjust LEVEL (MIN/MAX) until the sound is at the maximum level you want the amplifier to produce. 6. Adjust the auto sound system’s volume control to a comfortable listening level. 18 Operation 12-2018.fm Page 19 Friday, May 12, 2000 12:46 PM ADJUSTING FREQUENCY CROSSOVER If you installed a subwoofer using the steps in “Connecting Two Speakers and One Subwoofer (Unbridged Connection)” on Page 14 or “Connecting Two Unbridged Speakers and One Bridged Subwoofer” on Page 15, set X-OVER FREQ ON/OFF to ON, then adjust X-OVER FREQ for your vehicle’s acoustics. The amplifier passes through all frequencies at or below that setting (45−400 Hz). Note: X-OVER FREQ selects the limit at which the amplifier will pass frequencies (from 45− 400 Hz). You should not use it to adjust the sound you hear through your main speakers. Operation 19 12-2018.fm Page 20 Friday, May 12, 2000 12:46 PM ˆ Troubleshooting We do not expect you to have any problems with your RadioShack High Power 4/3/2-Channel Bridgeable Amplifier, but if you do have a problem, this chart might help. If not, take the amplifier to your local RadioShack store for assistance. Symptom No power — the amplifier’s POWER indicator does not light after the vehicle’s auto sound system is turned on No sound Possible Cause Suggestion Power problem. Check the amplifier’s and auto sound system’s fuses and replace them if necessary (see “Replacing a Fuse” “Replacing a Fuse” on Page 21). Vehicle’s ignition not turned on. Start the vehicle. Amplifier not connected to auto sound system/vehicle correctly. Check all connections. Auto sound system not turned on or volume set to minimum. Turn the auto sound system on or adjust its volume. Amplifier’s LEVEL (MIN/MAX) controls set to minimum. Adjust LEVEL (MIN/MAX). Amplifier not connected to auto sound system/vehicle correctly. Check all connections. The amplifier might have shut down. Turn your auto sound system off and let the amplifier cool. Make sure the amplifier is properly ventilated. Then turn your auto sound system back on. The amplifier turns itself back on when it is cooled. The amplifier detected an input overload. Reduce the auto sound system’s volume. Distorted sound 20 Power problem. Check the amplifier’s and auto sound system’s fuses and replace them if necessary (see “Replacing a Fuse” on Page 21). The amplifier might be receiving too much input power from your auto sound system. Reduce your auto sound system’s output power (if possible), or reduce the auto sound system’s volume. An output channel might have shorted. Take the amplifier to your local RadioShack store. Troubleshooting 12-2018.fm Page 21 Friday, May 12, 2000 12:46 PM Symptom Distorted sound (continued) Possible Cause The amplifier might have shut down. CARE Suggestion Turn your auto sound system off and let the amplifier cool. Make sure the amplifier is properly ventilated. Then turn your auto sound system back on. The amplifier turns itself back on when it is cooled. Caution: Do not use a fuse with ratings other than those specified. Doing so might damage your amplifier. To enjoy your amplifier for a long time: • Keep the amplifier dry. If it gets wet, wipe it dry immediately. • Use and store the amplifier only in normal temperature environments. • Handle the amplifier gently and carefully. Do not drop it. • Keep the amplifier away from dust and dirt. Replacing the SFE-Type Fuse 1. Disconnect the cable from the vehicle’s negative (–) battery terminal. 2. Push together and twist the fuse holder’s parts on the red power cable until they spring apart. Then remove the fuse. • Wipe the amplifier with a damp cloth occasionally to keep it looking new. Modifying or tampering with the amplifier’s internal components can cause a malfunction and might invalidate its warranty and void your FCC authorization to operate it. If your amplifier is not performing as it should, take it to your local RadioShack store for assistance. REPLACING A FUSE If the amplifier does not operate, you might need to replace the red power cable’s 60amp SFE-type fuse or one or both of the 30amp blade-type fuses on the amplifier’s back panel. Check all fuses. Important: Let the amplifier cool down and see if it starts again before you assume a fuse needs to be replaced. Fuse 3. If the fuse is blown, replace it. Use only an SFE-type fuse with the proper rating (available at many automotive supply stores). The fuse must be 60 amps. 4. Reassemble the fuse holder by inserting the fuse into the longer of the fuse holder’s ends, and pushing together and twisting the two parts until they latch together. 5. Reconnect the cable to the vehicle’s negative (–) battery terminal. Replacing the Blade-Type Fuses 1. Disconnect the cable from the vehicle’s negative (–) battery terminal. Troubleshooting 21 12-2018.fm Page 22 Friday, May 12, 2000 12:46 PM 2. For each fuse, grasp its plastic end and pull it out of the back of the amplifier. 3. If the fuse is blown, replace it. Use only a blade-type fuse with the proper rating. The fuse must be 30 amps. 4. Grasp the fuse’s plastic end and push it in. 5. Reconnect the cable to the vehicle’s negative (–) battery terminal. 22 Troubleshooting 12-2018.fm Page 23 Friday, May 12, 2000 12:46 PM ˆ Specifications Output Power: Stereo ....................................................................... 65 Watts × 4 @ 4 Ohms, 20–20 kHz, 0.5% THD 100 Watts × 4 @ 4 Ohms, 20–20 kHz, 10% THD 75 Watts × 4 @ 2 Ohms, 20–20 kHz, 0.5% THD 80 Watts × 4 @ 2 Ohms, 20–20 kHz, 1% THD Bridged .................................................................................. 200 Watts @ 4 Ohms, 1 kHz, 10% THD Frequency Response ................................................................................................ 20–20,000 Hz (±3 dB) Power Supply Voltage ......................................................................................... 12V DC Negative Ground Maximum Current Draw ........................................................................................................................ 60 A 5 Dimensions (HWD) ...................................................................................................... 2 /8 × 13 × 17 Inches (6.6 × 33 × 43.2 cm) Net Weight ........................................................................................................................................... 12 lbs (5.4 kg) Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. Specifications 23 12-2018.fm Page 24 Friday, May 12, 2000 12:46 PM Limited One-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a) correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase price. All replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original warranty period. You will be charged for repair or replacement of the product made after the expiration of the warranty period. This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment or reinstallation. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102 We Service What We Sell RadioShack A Division of Tandy Corporation Fort Worth, Texas 76102 12/99 12-2018 05A00 Printed in China