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Realistic RadioShack Tandy MPA-30 32-2034 Public Address Amplifier 20-Watt Mixer FOR SALE: Realistic RadioShack Tandy MPA-30 32-2034 Public Address Amplifier. The bad aux jack problem could easily resurface so I am describing this item as"Not Working" The volume, tone and input level controls were a bit scratchy at first but after a few turns they cleared up. When I tested this amp for this eBay listing I used a good quality RadioShack cable(part# 42-2351) and played the source for about four hours and everything seemed to work OK including both of the 1/4" mic jacks. I disassembled the cabinet and sprayed contact cleaner on the exposed parts of the phono jack and swabbed it with a cotton swab but I couldn't get a good solid connection when I tried to play from an aux source. This amplifier was bought from our family-owned store in the summer of 2006 and returned about two months later due to the aux input not working properly. Custom manufactured in China in March 2003 for RadioShack.
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Prestigious and world famous"RadioShack" logo. 8, 16 ohm speakers and 70V speaker system Can be powered from 120 VAC or 12 VDC with included cigarette lighter cord Tone control Master volume control Separate level controls for each microphone input and the aux/phono input"Power on" red LED Special Feature- Emblazoned with the highly respected.
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There is a switch to select between the two) Outputs for 4. more mics Phono jack for aux/CD and magnetic cartridge phono w/accompanying ground screw(either aux can be used or the phono can be used but not both at the same time. RadioShack 32-2001 MPA-40 20-Watt PA Amplifier(bad auxiliary input) 20 watts output power at 1kHz with 10% THD Two 1/4" mic inputs for hi-impedance.