the model is GM-H50. it is brand new in box with all the wires. $40
SPECS
-50W x 2/160W x 1 Max. Power
-25W x 2/80W x 1,
-20Hz-20kHz, 0.05% THD
-0.003% Distortion (10W, 1kHz)
-PWM power supply
-Variable Bass Boost
-Gold Plated RCA Terminal
from looking around on this, it doesnt overheat, let alone get hot during long periods of time.