Topping TP-60 TP60 2*80W High Power Class-T AMP TA2022 Stereo Power Amplifier TP60 use original TA2022.Germany ERO electronic capacity.USA DALE resistance.JAPAN sanyo resistance. TP60 audio transmission use the Germany Siemens capacitor. TP60 power use the USA CDE capacitors , panosonic FM capacitors and ONSEMI rectifiers. TP60 has 2 analog inputs.it is very easy to switch to press the input select on the panel . TP60 use the special inductance and there isn't heat when it is working.