F6 Power Amplifier
The F6 is a very interesting amplifier, first designed in 2012 and presented in October at the Burning Amp Festival in San Francisco.
The amplifier was not initially slated for commercial production, and I continued to refine the design over the course of the next year and a half, working with different parts and adjustment values until both I and my listeners were satisfied that I had gotten the most out of this topology.
The F6 is a very simple Class A push-pull design which uses N channel powerFets driven by a high quality line level transformer which splits and isolates thedrive signal to the output stage while also serving as the feedback element forthe amplifier.
Specifications
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 1Hz to 50kHz
Total harmonic distortion: 1%
Damping factor: 16
Gain: 14 dB
Input sensitivity: 0.57V
Speaker load impedance: 4Ω to 8Ω
Dimensions: 430 x 143 x 390mm
Weight: 12.28kg
Year: 2014
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