Hifimediy T1-M TK2050 2 x 50W Tripath Amplifier TC2000 TP2050 T-AMP Great Tripath sound quality from TK2050 chipset! (sounds better than TA2020) Up to 2 x 57W on 4 ohm Input sensitivity 1.5V, Input impedance 50K Small design: 8cm x 7cm x 4cm