70V Commercial Amplifiers

What Are the Advantages of a 70v Amp?

For commercial audio systems where multiple speakers need to be run from one amplifier, the OSD-PA90 is an installer's dream! This amp features 70V, 100V, or 8 ohm outputs as well as three microphone input connections with independent volume control for CD players, radios, MP3 players, iPods, etc. With power handling capability of 60 Watts into 8 ohm output mode with less than 1% THD+N, installers can connect up to 10 70V speakers (tapped in at 5 Watts each). Paired with OSD Audio’s 70V commercial in-ceiling and omni speakers, the OSD-PA90 is ideal for background music and paging for retail stores and commercial buildings as well as outdoor venues like amusement parks. Because this amp is a high impedance system, long cable runs do not significantly affect the output as they would in a common low impedance speaker system and the OSD-PA90 includes overload, over-heating and short-circuit protection.

We Love Making Problem-solving Products like the MTR Transformer

Dial into your geek side because the MTR Amp/Transformer is an amazing product. Its main application is to take a typical 8-ohm amplifier and turn it into a 70V amplifier, which could be vey useful for commercial, residential and even pro audio installations. The different scenarios where the MTR would be helpful include expanding a business or retail establishment where more speakers must be added to the existing audio system. By connecting the MTR amp transformer to the inputs of the existing 8-ohm amp, the installer can run additional 70V speakers with transformer taps without having to add another amp. The output of the MTR becomes a high impedance or 70V transformer. Customers who wish to add 8-ohm speakers can purchase the OSD Audio 70V Commercial Distribution Line Transformer or the weather-resistant version for outdoor use.

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