M^3 Special Edition headphone amplifier with open top plate for higher output bias and improved ventilation around output mosfet heatsinks – mfspdesigns

M^3 Special Edition headphone amplifier with improved cooling - mfspdesigns

M^3 Special Edition headphone amplifier – mfspdesigns

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M^3 Special Edition headphone amplifier with open top plate for higher output bias and improved ventilation around output mosfet heatsinks – mfspdesigns