There are several specifications for SX-939. The continuous power output for the SX-939 at 20Hz to 20 kHz will be 70W + 70W up to 8 ohms and 80W + 80W up to 4 ohms, on the other hand at 1 kHz it will be 75W + 75W and 100W + 100W at the same ohm ratings.
The SX-939 is able to withstand an input voltage of 120 identification, 240,220,110 and 130 volumetric volts as it has a switchble config.
The SX-939 has a frequency response ranging from 7 Hz to 100 kHz.
The stereo separation of sx-939 is 70 dB.
This device has input ports for AM, FM, Phono, AUX ,MIC and more.