IC Tripath TA20424
Output power: 2x15W @4ohm, 2x6W @8ohm(RMS)
Headphone frequency response: 15 Hz - 100 kHz -1db
Power Output: 3.0 Watts per channel on 33 Ohm
Input Impedance: 10k Ohms
Input Audio: CD IN RCA (Left/Right) x 1 [3Vpp max.]

Specification of the Pre-Amplifier Vacuum Tube: 6DJ8/6922 series or 12AU7 series (exchangeable)
Signal-to-Noise Ratio (SNR): 92dB THD + Noise: 0.05% @ 10k ohm 0.15% @ 33 ohm
Input Audio: CD IN RCA (Left/Right) x 1 [3Vpp max.]
Power Socket: (5.5mm/2.1mm) x 1
Output Audio: OUT 3.5mm x 1 Headphone: OUT (3.5mm) x 1 Knob Audio and power switch x 1: Power Indicator, (Blue LED under Tube Socket) x1, Volume Knob x 1
Power Supply: DC 12V-13V (max.)5A