50 Back Via Prepaid Cannon Mastercard wQualifying Cannon Purchases UNTIL 04302025 VIEW Magnum 10 Electric Downrigger Seriously tough. Seriously powerful. Magnum 10 is the go-to downrigger for serious anglers for exactly these reasons. Its ruggedness and reliability have been proven on the water, year after year. But smart anglers know Magnum 10 has a sophisticated side too. Features Auto Up - Flip the updown switch and your Magnum automatically retrieves your weight, stopping at the water line.