Roemtech, LLC Announces its Newly Developed PMA-350H Mixer/Amplifier with Auto-HummBuster Technology

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PlenumAmp PMA-350H

DALLAS, Texas, May 16, 2013 (SEND2PRESS NEWSWIRE) -- Roemtech(R), LLC is announcing release of its new PlenumAmp PMA-350H. Specifically designed for above ceiling applications, this plenum rated mixer/amplifier is equipped with Roemtech's new Auto-HummBuster technology. In addition, it features three inputs, external volume control, P/A override, and green sleep mode. The PMA-350H is designed for conference room and classroom audio systems.

The PMA-350H is a three input, 24 volt, 50 Watt, plenum rated stereo mixer/amplifier. To provide priority override for a Public Address system, the amplifier senses P/A audio and mutes connected audio sources to ensure delivery of important messages. In addition, this amplifier is compatible with the optional Roemtech external wall volume control which utilizes an industry standard 10K analog pot. The 6.48 inches wide x 1.65 inches high x 4.02 inches deep chassis dimensions provide for an easier installation in classrooms with limited space.

The PMA-350H includes Auto-HummBuster technology. This novel, patent-pending technology automatically suppresses noise that sometimes infiltrates classroom audio systems. Roemtech developed algorithms that listen to the audio on each input. After analyzing all audio inputs with and without filters, the internal microprocessor intelligently determines the optimal settings and then stores them.

CEO and President, D. Thomas Emlinger states, "The PMA-350H is our most intelligent amplifier yet, delivering rich and clear audio, external volume control, and instant ground-loop elimination."

The PlenumAmp PMA-350H is only available through authorized Roemtech audio-visual dealers. MSRP: $299.95, including a three-year warranty and a 60 Watt power supply.

For additional information about the PMA-350H, visit or contact James Belsher at james[at] or (972) 221-3030.

About Roemtech, LLC:

The audio company is owned by D. Thomas Emlinger. He and his associates have spent nearly nine years researching, developing and testing the PlenumAmp line. They currently have tens of thousands of units successfully installed in classrooms and conference rooms around the world with future products under development.

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