Mounted in the bridge, the two circuits can deliver a comfortable power over 10 W effective on a HP impedance 4 ohms, with a distortion less than 1% (if we accept a larger distortion, the power can rise to 20 W).
15 W headphone bridge amplifier Parts list : R1, R2 : 470 ohm C1, C4 : 2,2 uF C2 : 10 nF C3 : 10 uF C5 : 100 uF C6 : 100 nF U1 : TDA 2002
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