Review on BOSS Audio MC900B Weatherproof Amplifier - 4-Channel, Bluetooth, 500W, Bluetooth Remote, Full Range, Class A/B, 4-8 Ohm Stable, Aux-in, RCA Outputs, USB Charging by Kyle Hong

Bought for a golf cart. The amp is smaller than advertised which was a bonus. The size makes it easy to install almost anywhere. The flush-mounted blue-tooth control panel comes with ample lanyard to run cables in excess of 10 feet. The installation is completed in a few minutes. Paired with 6.5" Polk speakers. You can increase the phone volume and the volume on the control panel. Thanks to the amplifier, these speakers scream absolutely without any distortion. So far, it's good. I'm happy with the purchase.