Radio Shack 32-2055 Manuals

Please read this user’s guide before installing, setting up and using your new product www.radioshack.com 250W Power Amplifer Quick Start Guide User’s Guide Thank you for purchasing your 250-Watt Power Amplifi er from RadioShack. This PA gives you the versatility and power you need in a professional sound system. Its wide frequency response easily handles amplifi cation of voice and music. Use it anywhere you need to deliver special announcements with excellent sound. It is perfect for meeting halls, auditoriums, sporting events, schools, or in the offi ce for paging systems. With a bridged speaker connection, the amplifi er can produce up to 350 watts of clean, powerful sound with minimum distortion. 32-2055 250-watt stereo power amplifi er

Please read this user’s guide before installing, setting up and using your new product www.radioshack.com 32-2055 250W PA Amplifi er 250W Power Amplifer Quick Start Guide User’s Guide Note: Actual product may vary from the images found in this document. Quick Start Guide Thank you for purchasing your 250-Watt Stereo Power Amplifi er from RadioShack. This PA gives you the versatility and power you need in a professional sound system. Its wide frequency response easily handles amplifi cation of voice and music. Use it anywhere you need to deliver special announcements with excellent sound. It is perfect for meeting halls, auditoriums, sporting events, schools, or in the offi ce for paging systems. If it is bridged, the amplifi er can produce up to 350 watts of clean, powerful sound with minimum distortion. Illuminated Power Switch Lights up when you turn on the switch. CD/AUX Adjust volume of CD or auxiliary sound source. CLIPPING Indicator Lights up to remind you to reduce volume when the amplifi er output is too high. PROTECTION Indicator Lights up when the amplifi er overheats or if a shorted load occurs on the amplifi er output. The amplifi er resets itself when the problem is corrected. A/B Speaker Switch Select the speakers you want to use with the amplifi er in Channel A, Channel B, or both (for use with 8 ohm speakers only). MIC 1, MIC 2, and MIC 3 Adjust volume for the connected microphones. MIC 4/PHONO Adjust volume of connected microphone (MIC 4) or turntable. FEEDBACK FILTER Turn to control audio feedback. Volume Control: Left/Right speakers Turn to regulate volume of left and right speakers. Output Power Level LED Indicators Indicate the total stereo output power level PHONES Jack Connect headphones here.

A ©2008. RadioShack Corporation. All rights reserved. RadioShack and RadioShack.com are trademarks used by RadioShack Corporation. 07A08 32-2055 A Printed in China 32-2055 250-Watt · Stereo PA Amplifier Quick Start Guide Before you use your amplifier, be sure to place it on a surface with adequate ventilation. Do not put it on thick carpeting, which can restrict air flow, or near a heat source such as a heat vent or radiator, which can cause it to overheat. Step 1: Selecting a Location Preset the Audio Input Source Audio Device Control Setting Turntable Power Flat Tape Deck Power Flat CD Player Power Flat Amplifier Power Flat Receiver Tone Off Presetting the Amplifier Before you make any connections, be sure the amplifier is turned off and AC power cord is not plugged in. Mic, CD/AUX, and LEFT / RIGHT volume controls should be set to minimum. Step 2: Preset the Controls 1. Connect your input source. You can connect optional components, such as microphones, tuner, turntable, audio mixer, preamplifier, or CD player to your amplifier to expand your system. To prevent hum and other noise, use low-capacitance shielded cable (not supplied, available at your local RadioShack store or at www.radioshack.com). Note: This amplifier is equipped with both stereo phono input and ¼-inch (6.35 mm) jacks. The ¼-inch input jacks on the top are stereo while the others are left and right mono. 2. Connect your speakers. Connect your speaker wire to the speaker terminals matching their polarities, the positive (+) speaker wire to the positive terminal (red) and the negative (–) speaker wire to the negative speaker terminal (black). To bridge the amplifier’s channels: • Speakers connected to the same channel (A or B) are part of a pair and must be of the same impedance. • Speakers connected to different channels (A or B) are not part of a pair and can be different impedance. 3. Connect Power Plug the power cord into a standard AC outlet. Step 3: Connecting Your Amplifier 1. Start the input sound source. 2. Make sure LEFT and RIGHT volume control on the the amplifier are set to MIN. 3. Press POWER to turn on the amplifier. 4. Rotate LEFT and RIGHT volume controls to their middle positions. 5. One at a time, adjust MIC1, MIC2, MIC3, MIC4/ PHONO, and CD/AUX to the desired volume and balance. If you hear feedback after you adjust these controls, turn FEEDBACK FILTER clockwise until the noise disappears. 6. Adjust LEFT and RIGHT volume controls to the desired volume level after you find your desired balance. Step 4: Using Your Amplifier Illuminated Power Switch Lights up when you turn on the switch. Left/Right speakers Volume Control Turn to regulate volume of left and right speakers. FEEDBACK FILTER Turn to control audio feedback. MIC 1, MIC 2, and MIC 3, MIC 4/PHONO and CD/AUX Adjust volume for the connected microphones, turntable, CD or auxiliary sound source. Connect stereo input sources (CD or DVD player, TV, etc.) with ¼” (balanced) audio cable to Stereo Input Jacks. Connect up to 4 microphones with 3 pin XLR plug to Balanced Microphone Inputs. Connect an auxiliary sound source (CD, tape deck or tuner) to Audio Input Jacks. Use a shield cable with phono plugs at each end. Connect an extra amplifier to MIX BUS Jack Use a shield cable with phono plugs at each end. Connect up to 4 microphones with ¼” (6.35mm) plug to Unbalanced Microphone Inputs. MIC 4/ PHONO Switch Select MIC 4 or PHONO input. Connect low-level audio input source (e.g. Turntable) to Phono Input Jacks If you connect a low-level audio input source to the PHONO jacks, set MIC4/PHONO to PHONO. To avoid a low-level hum, connect your turntable’s ground wire (usually black or green) to the GND terminal on the amplifier. Connect an equalizer or other external processor to EQ IN/OUT Jacks. You can also connect a tape deck to the EQ OUT jack for recording.

Thank you for purchasing your 250-Watt • Stereo PA Amplifier from RadioShack. This PA gives you the versatility and power you need in a professional sound system. Its wide frequency response easily handles amplification of voice and music. Use it anywhere you need to deliver special announcements with excellent sound. It is perfect for meeting halls, auditoriums, sporting events, schools, or in the office for paging systems. With a bridged speaker connection, the amplifier can produce up to 350 watts of clean, powerful sound with minimum distortion. 32-2055 www.radioshack.com PA Amplifier User’s Guide Quick Start Guide 250-Watt • Stereo PA Amplifier What’s Included