The use of feedback affect the damping factor of the amplifier which is quite noticeable on the control of the woofer on speakers. I wonder if it...
The 2A3 tube has a filament voltage of 2.5V and therefore it is more forgiving to use AC filament heating. Comparing to the loading of 16 ohms,...
My friend just bought a similar headphone amp from Soundgate using 2A3 for the output with 12AX7 as the driver. The sound is good but he complain...
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