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Radio Shack 32-2055 User Manual

Other manuals for 32-2055: Quick Start Manual, User Manual, Quick Start Manual
Manual is about: 250-Watt Stereo PA Amplifier

Summary of 32-2055

  • Page 1

    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...

  • Page 2: Ontents

    2 c ontents important safety instructions ............................................................................ 3 about your amplifier ......................................................................... 6 amplifier features.....................................................................

  • Page 3

    3 important safety instructions 1. Read all safety and operating instructions before the appliance is used. 2. Keep all safety and operating instructions for future reference. 3. Follow all warnings on the appliance and in the operating instructions. 4. Unplug this appliance from the wall outlet bef...

  • Page 4

    4 12. Clean only as recommended by the manufacturer. 13. An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care ...

  • Page 5

    5 21. Upon completion of any service or repairs to this appliance, ask the service technician to perform safety checks to determine that the appliance is in proper operating condition. 22. For added protection for this product during a lightning storm, unplug it from the wall outlet. This will preve...

  • Page 6: About Your Amplifier

    6 about your amplifier amplifier features illuminated power switch lights up when you turn on the switch. Output power level indicators indicates the total stereo output power level. Mic 1, mic 2, mic 3 adjust volume for the connected microphones. Phones jack connect headphones here. A/b speaker switc...

  • Page 7: About Your Amplifier

    7 about your amplifier clipping indicator lights up to remind you to reduce volume when the amplifier output is too high. Cd/aux adjust volume of cd or auxiliary sound source. Volume control: left/right speakers turn to regulate volume of left and right speakers. Feedback filter turn to control audio ...

  • Page 8: About Your Amplifier

    8 about your amplifier cooling fan automatically activated whenever the amplifier is turned on. This air cooling system rapidly disperses interior heat to reduce operating temperature. ¼” stereo input jacks connect stereo input sources (cd or dvd player, tv, etc.) here using a ¼-inch (balanced) audio ...

  • Page 9: About Your Amplifier

    9 about your amplifier audio input jacks connect input sources (cd or dvd player, tv, etc.) here using an unbalanced audio cable. Match the colors on your cable connections with the colors on the jacks. Speaker terminals connect two sets of speakers (left and right, for a and b). Gnd (ground wire con...

  • Page 10: Amplifier Setup

    10 amplifier setup getting started select a location 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. Preset th...

  • Page 11: Connecting Your Amplifier

    11 connecting your amplifier connecting your amplifier connecting input sources 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 ...

  • Page 12: Connecting Your Amplifier

    12 connecting your amplifier connecting a turntable connect your low-level audio input source (turntable) to the l phono and r phono jacks on the back of the amplifier. If you connect a low-level audio input source to the phono jacks, set the mic4/phono switch to phono. To avoid a low-level hum, conne...

  • Page 13: Connecting Your Amplifier

    13 connecting your amplifier connecting an equalizer connect an equalizer or other external signal processor to the eq in and eq out jacks on the back of the amplifier. Notes: • you can also connect a tape deck to the eq out jack for recording. • the eq in/out jacks handle the signal from an outside e...

  • Page 14: Connecting Your Amplifier

    14 connecting your amplifier determining total speaker impedance before you connect speakers to the amplifier, you must determine the total speaker impedance. To determine total speaker impedance, you must first decide if you are going to connect the speakers in series, parallel, or a series/ parallel ...

  • Page 15: Connecting Your Amplifier

    15 connecting your amplifier connecting two speakers in series speakers are connected in series when the first speaker’s positive terminal is connected to the next speaker’s negative terminal. Note: determine the total speaker impedance of speakers you want to connect in series by adding up the indivi...

  • Page 16: Connecting Your Amplifier

    16 connecting your amplifier unbridged connection use this connection if you are connecting more than one speaker on the same channel or if you do not have high power speakers. 1. Connect the speaker wires to the corresponding left and right positive (+) and negative (–) speaker terminals. 2. Connect...

  • Page 17: Connecting Your Amplifier

    17 connecting your amplifier 2. Connect the other end of the speaker’s positive (+) and negative (–) wires to the amplifier’s red speaker left and speaker right terminals. Note: speaker right (+) on the amplifier is used as a negative (–) terminal for a bridged connection. 3. Make sure stereo/mono is s...

  • Page 18: Operating Your Amplifier

    18 operating your amplifier beginning steps 1. Start the input sound source. 2. Make sure the left and right volume controls on the front of the amplifier are set to min. 3. Press power to turn on the amplifier. The blue light around the power switch and left and right volume controls will light. 4. Ro...

  • Page 19: Operating Your Amplifier

    19 operating your amplifier using the feedback filter the feedback filter control lets you reduce or eliminate squeal and other noise caused by feedback. After you adjust left and right volume, mic1, mic2, mic3, mic4/phono, and cd/aux , turn on the amplifier and any connected sound sources. If you hea...

  • Page 20: Additional Information

    20 additional information care and service 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 carefully; do not drop it. Keep the amplifier away from dust and dirt, and wipe it with a damp cloth occas...

  • Page 21: Additional Information

    21 additional information troubleshooting problem cause solution why isn’t my amplifier powering up, even though i have tried turning it on and off? The device may have overheated. Turn your amplifier off. Wait until it cools down and try again. The fuse might be blown. Check the amplifier’s fuse and r...

  • Page 22: Additional Information

    22 additional information specifications input impedance ............................................................................................................ 20k ohms continuous output power stereo at 1 khz .........................................................................................

  • Page 23: Additional Information

    23 additional information do more with your amplifier visit your local radioshack store or www.Radioshack.Com to purchase these and other useful products. Audio mixer • separate master and record outputs • echo section with delay, repeat and level controls • assignable effect section with send and re...

  • Page 24

    A 33-2055 a printed in china 07a08 limited 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. Ex...