●Two switch functions: 3D switch on the left and equal loudness switch on the right
●Input impedance: 30K Ω, Output impedance: 20 Ω; Volume adjustment range: 75db;
●Balance adjustment range: 1-20db;
● bass adjustment (at 40Hz) ± 15dB,
● treble adjustment (16KHz) ± 15dB;
●Total harmonic distortion: 0.0003;
●Signal to noise ratio: 80dB;
●Frequency response width: 250kHz;
●The maximum input and output voltage of the signal is 1.5V;
● two channel balance error: < 1.5dB;
●Common mode rejection ratio of power supply: 60dB.