Page 2 - Contents
2 ˆ Contents Features .................................................................................................................................. 3 Preparation ............................................................................................................................. 4 Suppl...
Page 3 - Features
3 Features ˆ Features Your RadioShack High Power 4/3/2-Chan-nel Bridgeable Amplifier produces a total of400 watts to give added punch and power toyour vehicle’s existing auto sound system. The amplifier produces up to 200 watts perchannel (if bridged) of clean, powerful soundat all audio frequencies...
Page 4 - Preparation; SUPPLIED HARDWARE; Choosing a Mounting Location
4 Preparation ˆ Preparation SUPPLIED HARDWARE Your amplifier comes with the following items. Be sure you locate everything shown before youstore or dispose of the packing materials. BEFORE YOU BEGIN THE INSTALLATION Before you install your amplifier, read all theinstructions in this owner’s manual. ...
Page 5 - Preparing the Mounting Area; INSTALLATION ORDER
5 Preparation Warning: The amplifier gets very hot while itis on. Do not touch the amplifier or placeflammable objects near it. Preparing the Mounting Area Before you mount the amplifier, make sureyou have these materials. • an adapter harness • additional wire • shielded audio cables • 16- or 18-ga...
Page 6 - CONNECTING GROUND AND SWITCHED/PRIMARY POWER
6 Preparation Cautions: • For added safety and to protect your amplifier and auto sound system, dis-connect the cable from your vehicle’snegative ( – ) battery terminal before you begin. • Be sure your speakers can handle as much as 400 watts of power (200 wattsper channel if you connect your autoso...
Page 7 - Caution: Due to the amplifier’s high cur-
7 Preparation This connection turns on the amplifier when you turn on the auto sound sys-tem, and turns off the amplifier whenyou turn off the auto sound system. Thisprevents your vehicle’s battery frombeing drained if you leave your amplifieron when you turn off your auto soundsystem. If your auto ...
Page 8 - Connecting Inputs
8 Connecting Inputs ˆ Connecting Inputs LOW-LEVEL INPUTS You can connect your auto sound system’slow-level line out jacks to the amplifier’s low-level line in jacks. If your auto sound system does not havelow-level line out jacks, see “High-Level (Speaker Wire) Inputs” on Page 9 to connectyour ampli...
Page 10 - Four Speaker Outputs; Floating Ground Connection
10 Connecting Inputs Four Speaker Outputs Floating Ground Connection Common Ground Connection Gray/Black White/Black Gr ay Wh it e Right Re ar + Spea ker Left Rear + Spea ker Violet/Black Green/Black Vi ole t Gr een L e ft Rear – Speake r Right Rear – Spea ker Ri ght Fro n t + Speake r Left Fro n t ...
Page 11 - Two Speaker Outputs
11 Connecting Inputs Two Speaker Outputs Floating Ground Connection Common Ground Connection Right + S p eake r Left + Spe aker Violet/Black Green/Black Violet Green Left – Speak er Right – S p eake r Auto Sound System Gr ay Gr ay/ Bla c k Whi te/ Bl ack Whi te Ri ght + Speak er Lef t + S p eake r V...
Page 12 - CONNECTING SPEAKERS; Preparing the Speaker Wires
12 Connecting Inputs CONNECTING SPEAKERS You can connect four speakers, two speak-ers and a subwoofer, or just two speakers tothe amplifier and your auto sound system. Important: Before you make the connec-tions, make sure both BRG/ST switches (on the left and right sides of the amplifier) areset to...
Page 13 - Connecting Four Speakers
13 Connecting Inputs Connecting Four Speakers 1. Use a screwdriver to connect the front left speaker’s positive (+) wire to theamplifier’s CH1 (+) terminal. 2. Use a screwdriver to connect the front left speaker’s negative (–) wire to theamplifier’s CH1 (–) terminal. 3. Repeat Steps 1–2 to connect t...
Page 14 - Connecting Two Speakers (Bridged Connection); and; Connecting Two Speakers and One Subwoofer (Unbridged Connection)
14 Connecting Inputs Connecting Two Speakers (Bridged Connection) Caution: This connection produces 200watts per channel. Use this connection only ifyou have high-power speakers that can han-dle a power output of 200 watts. Note: CH2 (+) and CH4 (+) are used as nega- tive (–) terminals for a bridged...
Page 15 - Connecting Two Unbridged Speakers and One Bridged Subwoofer
15 Connecting Inputs 4. Use a screwdriver to connect the sub- woofer’s positive (+) wire to the ampli-fier’s CH3 (+) or CH4 (+) terminal. 5. Repeat Step 4 to connect the sub- woofer’s negative (–) wire to the ampli-fier’s negative (–) terminal for the same channel you connected in Step 4. Forexample...
Page 16 - Completing the Installation; MOUNTING THE AMPLIFIER
16 Completing the Installation ˆ Completing the Installation TESTING THE CONNECTIONS Before you continue, make sure you havesecurely made all connections. Then recon-nect the cable to the vehicle’s negative ( – ) battery terminal. Set LEVEL (MIN/MAX) on the left and right sides of the amplifier to i...
Page 18 - Operation; Caution: Never turn up the auto sound
18 Operation ˆ Operation TURNING ON THE AMPLIFIER The amplifier automatically turns on a fewseconds after you turn your vehicle’s ignitionswitch to ACC or ON or turn on your autosound system, depending on how you wiredthe system. The POWER indicator on theside of the amplifier lights when the amplif...
Page 20 - Troubleshooting
20 Troubleshooting ˆ Troubleshooting We do not expect you to have any problems with your RadioShack High Power 4/3/2-ChannelBridgeable Amplifier, but if you do have a problem, this chart might help. If not, take the ampli-fier to your local RadioShack store for assistance. Symptom Possible Cause Sug...
Page 21 - CARE; Replacing the SFE-Type Fuse
21 Troubleshooting CARE 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 nor- mal temperature environments. • Handle the amplifier gently and care- fully. Do not drop it. • Keep the amplifier away from d...
Page 23 - Specifications
23 Specifications 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 Br...
Page 24 - Limited One-Year Warranty
12-2018 05A00 Printed in China RadioShackA Division of Tandy CorporationFort Worth, Texas 76102 Limited One-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workman-ship under normal use for one (1) year from the date of purchase from RadioShack com...
