Product information:	Model: LP-168USBFrequency response: 20Hz-20KHzTotal wipe wave distortion:  80dBInput Sensitivity: 200mVInput voltage: 13.5VInput Current: 5AOutput Power: 40W * 2 + 68W RMSInput impedance: 47KLoad Impedance: 4-8⒢Size: 176 * 127 * 43MM<