FREQUENCY RESPONSE: ±1dB,20Hz~20KHz
 DISTORTION: 0.05%,20Hz~20KHz
 INPUT IMPEDANCE: BALANCED 20K OHMS
 OUTPUT IMPEDANCE: BALANCED 600 OHMS

 FREQUENCY RESPONSE: ±1dB,20Hz~20KHz 
 DISTORTION: 0.05%,20Hz~20KHz 
 INPUT IMPEDANCE: BALANCED 20K OHMS
 OUTPUT IMPEDANCE: BALANCED 600 OHMS