2W PA246 amplifier circuit

This amplifier output circuit having a fairly low at only 2W 8 ohm impedance. Minimum supply voltage is needed 4 volts and a maximum voltage 18V DC. Power amplifier circuit was very low compared with other PA IC series, an average of 30W and over.

Part List :
R1 =  750K
R2 = 100K
R3 = 1K
R4 = 18K
R5 = 330K
R6 = 82K
R7 = 10K
C1 = 5uF
C2 = 100uF
C3 = 1000pF
C4 = 1000uF
C5 = 0.1uF
C6 = 5uF
U1 = PA246