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About the M-300B Tube
The Austin Acoustic M-300B is a premium SET monoblock amplifier designed for audiophiles seeking exquisite tube sound quality. It features the classic 300B power tube paired with a Western Electric 437A driver tube and tube rectification. The amplifier uses Tamura permalloy core output transformers, Tango interstage transformers, and Tango power supply chokes, with pure silver wiring in the signal path to ensure the highest fidelity. It delivers 4-8 watts of power output with selectable output impedance of 4, 8, or 16 ohms. The frequency response is flat from 20Hz to 20kHz (-1dB to 0dB). Each monoblock weighs 45 lbs and measures 8.5"W x 19.5"L x 11"H. The amplifier is
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