5670 *2 Tube BD139 BD140 Hybrid Class A Headphone Amplifier is based on LEHMANN headphone amp circuit with tube rectifier/driver stage
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Based on LEHMANN headphone amp circuit with tube rectifier/driver stage
Up for your consideration is a headphone amplifier based on LEHMANN headphone amp,As we know the headphone amplifier of LEHMANN cost many $$$, Now you have chance to own it for an increditable price! It uses one 6Z4 rectifier tube to rate power for two 6N3(5670) tubes in driver stage, Two pair TOSHIBA BD139/BD140 high performance audio transistors in power amplify stage.The sonic is very musicial, Has great silky &sweet sound but also has very good dynamic and much punch on bass. Note: Schematic of this item is unavailable to be provided