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About the 9
The Jeff Rowland Model 9 is a monophonic power amplifier designed for the most demanding audiophile systems. It features a fully balanced differential circuit topology, user-selectable gain and input impedance, and robust protection systems. The amplifier is capable of delivering 350 watts into 8 ohms and 700 watts into 4 ohms, with a bandwidth extending from 0.1 Hz to 160 kHz. It is renowned for its low distortion (less than 0.06% THD), high damping factor (over 300), and substantial output current (70 amps continuous, 140 amps peak). The Model 9 is available in several versions, including the Model 9, 9T, 9Ti, and 9Ti HC, with options for AC-only or BPS (battery power supply) configurations.
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