Seachoice 1000 Watt, 4-Channel Marine Power Amplifier, Marine Grade Amp alt-50135501 providing many years of engine

providing many years of engine life

The blade size is 15 ¾-In

Size: 4-1/2 inch x 3/4 inch

and it has a 1-inch diameter hub and gear ratio of 4:1 and 8:1

Seachoice 1000 Watt, 4-Channel Marine Power Amplifier, Marine Grade Amp alt-50135501 providing many years of engineHigh output, 4 channel, full range class A B amplifier. Weatherproof. Up to 188 W X 4 RMS @ 2 ohm. Up to 94 W X 4 RMS @ 4 ohm. Up to 375 W X 2 RMS Bridged @ 4 ohm. MOSFET power supply. High and low level inputs. Fixed high pass crossover, variable low pass crossover. Variable bass boost with remote control. High output, 4 channel, full range class A B amplifier Up to 188 W X 4 RMS @ 2 ohm, Up to 94 W X 4 RMS @ 4 ohm, Up to 375 W X 2 RMS Bridged @ 4