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What is the difference between the Power-Tech (PT), Micro-Tech (MT), and Macro-Tech (MA) amplifiers?

April 26, 2017amplifiers ma macro Micro Mt power pt tech

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What is the difference between the Power-Tech (PT), Micro-Tech (MT), and Macro-Tech (MA) amplifiers?

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First, the Power-Tech (PT) Series is distinguished from the Micro-Tech (MT) Series and Macro-Tech (MA) Series by the ranges of impedances they are able to drive. PT Series amplifiers are optimized to function down to 4 ohms (two 8 ohm speakers) per channel in Stereo mode, and MT and MA Series amplifiers are optimized to function down to 2 ohms (four eight ohm speakers) in Stereo mode. Power-Tech Series amplifiers are appropriate for applications such as small to moderate-sized PA systems and instrument amplification, while the MT and MA Series amplifiers are designed to handle more difficult loads such as those found in large touring PA systems. The distinguishing characteristics between the MT and MA amplifiers are features. The MA (Macro-Tech) amplifiers have front panel level controls, SPI, IOC, and are PIP (Programmable Input Processor) module compatible. The MT (Micro-Tech) amplifiers do not include these features.