Speakers

OSD Audio line matching amplifier transformer

With a price tag of $130, OSD Audio's new MTR-500 line-matching amplifier transformer allows installers to use multiple pairs of 70-volt speakers with an 8-ohm amplifier.


The MTR line matching transformer can be used to retrofit an existing whole-house or commercial audio system with additional 70-volt speakers without damaging a standard consumer-grade amplifier.

Product Details:

Robert Archer · April 4, 2011

For years the residential electronics and commercial electronics markets have operated almost entirely on an exclusive basis with very little crossover.

With the release of OSD Audio‘s MTR-500 line matching amplifier transformer installation professionals can use a standard consumer-grade 8-ohm amplifier with multiple pairs of 70-volt speakers. The Brea, Calif.-based company says the product converts the 8-ohm output of a consumer electronics amplifier for use with as many as eight pairs of commercial-grade speakers without fear of mismatched impedance levels destroying the amp or speakers.

Some of the usage scenarios the MTR-500 can be used for include the expansion of an existing audio system that’s located in a business or retail establishment where more speakers are required to complete the upgrade. OSD says the unit has a maximum power handling capacity of 500-watts for bridged connections, and it incorporates features for short circuit and overload protection.



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  About the Author

Bob is an audio enthusiast who has written about consumer electronics for various publications within Massachusetts before joining the staff of CE Pro in 2000. Bob is THX Level I certified, and he's also taken classes from the Imaging Science Foundation (ISF) and Home Acoustics Alliance (HAA). Bob also serves as the technology editor for CE Pro's sister publication Commercial Integrator. In addition, he's studied guitar and music theory at Sarrin Music Studios in Wakefield, Mass., and he also studies Kyokushin karate at 5 Dragons in Haverhill, Mass. Have a suggestion or a topic you want to read more about? Email Robert at robert.archer@emeraldexpo.com

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  Article Topics


Speakers · Amplifiers · 70-Volt · Commercial · OSD Audio · All Topics
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