Car Amplifier Universal Bass Remote control Knob | Adjust the amplifier’s gain level with this remote level controller. | Adds a dash mounted Sub-Woofer volume control or balances a multiple amplifier | With RCA Composite Cables, this amplifier controller offers high-quality signal transmission
Universal 1/2 -inch Plastic Spacer Rings for 6.5-inch Round Speakers | Made From ABS Plastic | Fits 6.5 inch-6.75 inch Speakers | Adds an extra half inch to available mounting depth