2-2014.fm Page 1 Tuesday, May 9, 2000 8:51 AM Please read before using this equipment.
12-2014.fm Page 2 Tuesday, May 9, 2000 8:51 AM ˆ Contents Features .................................................................................................................................. 3 Preparation ............................................................................................................................. Supplied Hardware ............................................................................................................ Before You Begin the Installation ............
12-2014.fm Page 3 Tuesday, May 9, 2000 8:51 AM ˆ Features Your RadioShack High-Power Stereo Amplifier produces a total of 110 watts to give added punch and power to your vehicle’s existing auto sound system. The amplifier produces up to 55 watts per channel of clean, powerful sound at all audio frequencies with minimum distortion. You can connect your auto sound system’s lowlevel or speaker-level outputs to this amplifier.
12-2014.fm Page 4 Tuesday, May 9, 2000 8:51 AM ˆ Preparation SUPPLIED HARDWARE Your amplifier comes with the following items. Be sure you locate everything listed before you store or dispose of the packing materials.
12-2014.fm Page 5 Tuesday, May 9, 2000 8:51 AM Warning: The amplifier gets very hot while it is on. Do not touch the amplifier or place flammable objects near it while it is on. Preparing the Mounting Area In addition to the supplied hardware, you need these materials: • an adapter harness Then test the connections. When you confirm that everything works as expected, disconnect the amplifier, mount it in your vehicle, and reconnect it.
12-2014.fm Page 6 Tuesday, May 9, 2000 8:51 AM Cautions: per channel). Each speaker must have an impedance of at least 4 ohms. Your local RadioShack store has a large variety 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. 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.
12-2014.fm Page 7 Tuesday, May 9, 2000 8:51 AM using one of the supplied twist-on terminal connectors. 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 your auto sound system off.
12-2014.fm Page 8 Tuesday, May 9, 2000 8:51 AM ˆ Connecting Inputs LOW-LEVEL INPUTS You can connect your auto sound system’s low-level line out jacks to the amplifier’s low-level line in jacks. If your auto sound system does not have low-level line out jacks, see “High-Level (Speaker Wire) Inputs” on Page 9 to connect your amplifier. Note: For the best results, use shielded audio cables (not supplied) available at your local RadioShack store. 1.
12-2014.fm Page 9 Tuesday, May 9, 2000 8:51 AM HIGH-LEVEL (SPEAKER WIRE) INPUTS 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.
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-2014.fm Page 12 Tuesday, May 9, 2000 8:51 AM CONNECTING SPEAKERS You can connect two speakers or a subwoofer to the amplifier and your auto sound system. • If you are connecting two speakers, follow Steps 1–3 under “Preparing the Speaker Wires” then see “Connecting Two Speakers” on Page 13 to connect the speakers to the amplifier. 2. Separate each wire’s two conductors at both ends for a length of about 4 inches. 3. Strip the insulation from the ends of each conductor to expose 1/4 inch of wire.
12-2014.fm Page 13 Tuesday, May 9, 2000 8:51 AM Connecting Two Speakers Right Speaker Left Speaker 1. Use a screwdriver to connect the left speaker’s positive (+) wire to the amplifier’s SPEAKER L (+) terminal. 2. Use a screwdriver to connect the left speaker’s negative (–) wire to the amplifier’s SPEAKER L (–) terminal. 3. Repeat Steps 1–2 to connect the right speaker’s positive (+) and negative (–) wires to the amplifier’s SPEAKER R (+) and SPEAKER R (–) terminals.
12-2014.fm Page 14 Tuesday, May 9, 2000 8:51 AM 2. Use a screwdriver to connect the subwoofer’s negative (–) wire to the amplifier’s negative (–) terminal for the same channel you connected in Step 1. For example, if you connected the sub- woofer’s positive (+) wire to the amplifier’s SPEAKER L (+) terminal, connect the subwoofer’s negative (–) wire to the amplifier’s SPEAKER L (–) terminal. ˆ Completing the Installation TESTING THE CONNECTIONS system operate properly.
12-2014.fm Page 15 Tuesday, May 9, 2000 8:51 AM 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. 5. Secure the amplifier to the mounting surface using the supplied sheet metal screws and washers. 6.
12-2014.fm Page 16 Tuesday, May 9, 2000 8:51 AM 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. 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.
12-2014.fm Page 17 Tuesday, May 9, 2000 8:51 AM Symptom No Sound (continued). Distorted sound. The amplifier’s PROTECTION indicator lights. Possible Cause Suggestion The amplifier is not properly connected to your auto sound system/vehicle. Check all connections. The amplifier might have shut down. Turn off your auto sound system and let the amplifier cool. Make sure the amplifier is properly ventilated. Then turn your auto sound system back on. The amplifier turns on when it cools off enough.
12-2014.fm Page 18 Tuesday, May 9, 2000 8:51 AM ˆ Care To enjoy your amplifier for a long time: until they spring apart. Then remove the fuse. • Keep the amplifier dry. If it gets wet, wipe it dry immediately. • Use and store the amplifier only in normal temperature environments. Fuse • Handle the amplifier gently and carefully. Do not drop it. 3. If the fuse is blown, replace it. Use only an SFE-type fuse with the proper rating. The fuse must be 20 amps. • Keep the amplifier away from dust and dirt.
12-2014.fm Page 19 Tuesday, May 9, 2000 8:51 AM ˆ Specifications Output Power @ 14.4 VDC 1kHz ..................................... 35 Watts × 2 @ 4 Ohms, 20–20 kHz, 0.5% THD 55 Watts × 2 @ 4 Ohms, 20–20 kHz, 10% THD 40 Watts × 2 @ 2 Ohms, 20–20 kHz, 1% THD Frequency Response ................................................................................................ 20–20,000 Hz (±3 dB) Power Supply Voltage ...................................................................................... 14.
12-2014.fm Page 20 Tuesday, May 9, 2000 8:51 AM 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.
