Amazon.com: Diamond Audio MICRO82U Motorcycle 2-Channel Full Range Class D Amplifier, Compatible with Harley Davidson, Bass Knob Included, 200 Watts x 2 @ 4 Ohm, 300 Watts x 2 @ 2 Ohm : Electronics
Diamond Audio MP654 6.5" PRO Motorsport 300 W Full-Range Co-Ax Horn Speaker Pair for Cars, Harley Davidson Motorcycles or Other Powersports Vehicles - Walmart.com