Feliks Audio
Feliks Audio Echo Classic Amplifier
The Felix Audio Echo Classic is a tube headphone amplifier renowned for its warm sound and exceptional musicality. Features include a power output of 350 mW, a frequency response of 15Hz - 45kHz (±3dB), THD as low as 0.4%, and a signal-to-noise ratio exceeding 90 dB.
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Updated on May 18, 2026
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