Sure Electronics AA-AB32291 2x250W IRS2092 Class-D Amplifier Board Power output (with two 56 VDC power supplies): 250W x 2 (8 ohms, 10% THD), 180W x 2 (8 ohms, 1% THD) Class-D IRS2092 amp IC Two IRFI4020H-117P power MOSFETS Based on Internal Rectifier&apos;&apos;s AMP7D-200 reference design Requires two 55 to 65 VDC power supplies (see note below)