Radio Shack MPA-50 owner manual Features

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32-2002.fm Page 3 Friday, February 11, 2000 11:36 AM

ˆFeatures

Your RadioShack MPA-50 40-Watt PA Amplifier gives you 40 watts of solid power for your public address (PA) sys- tem. The built-in three-band equalizer enables you to tailor the sound to fit your environment. Its wide frequency re- sponse easily handles amplification of voice and music.

Its other features include:

Built-In Mixer and Preamplifier — pro- duce the best output possible, even with low-level audio input.

Microphone Jacks — let you connect up to two high- or low-impedance micro- phones.

Input Jacks — let you connect auxiliary equipment, such as a CD player, tape deck, or receiver, for music and special effects.

Spring-Loaded Terminals — make

speaker connection easy.

Master Volume Control — lets you ad- just the overall sound level.

Individual Microphone Controls — let you separately adjust the volume of each microphone.

Auxiliary Volume Control — lets you adjust the volume of the connected equipment.

Priority Terminals — let you connect an optional switch to cut out all other au- dio input sources and give priority to only the MICROPHONE 1 input.

Your amplifier is ETL listed to UL stan- dards and meets all applicable FCC standards.

WARNING: To reduce the risk of fire or shock hazard, do not expose this product to rain or moisture.

CAUTION

!

RISK OF ELECTRIC

SHOCK. DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSON- NEL.

This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product’s enclosure that might be of sufficient mag- nitude to constitute a risk of electric shock. Do not open the product’s case.

This symbol is intended to inform you that important oper- ! ating and maintenance instruc- tions are included in the literature accompanying this

product.

Features

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Contents MPA-50 40-Watt PA Amplifier Contents Features Placing the Speakers Presetting ControlsPreparation Choosing a LocationMaking Connections Speakers Speaker PhasingDetermining Total Speaker Impedance Connecting Speakers One Speaker Speakers in Parallel Series and Parallel Combined Multiple Speakers with Transformers Fm Page 11 Friday, February 11, 2000 1136 AM Controls and Operation Troubleshooting Replacing the Fuse CarePhono SpecificationsRadioShack