5+5W/4 Ohm stereo amplifi er to be installed in Sonelco fl ush-mount box P4901. It has independent adjustment potentiometers to regulate sound level of the left and right channel. It can be connected with a 5 W/4 Ohm baffl e or speaker, or combinations of both, in parallel, with 4 Ohm impedance, and 5W power or greater.