Schaefer Double Bkftt Blk w/F/S/ Shackle Boat JY15 even when the battery voltage

even when the battery voltage fluctuates due to heavy loads

And if that is not easy enough

4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W

Constructed of corrosion resistant powder coated aluminum housing with stainless steel base plate

G: (inch) 1 57/64" / (mm) 48

Schaefer Double Bkftt Blk w/F/S/ Shackle Boat JY15 even when the battery voltageDouble block with becket running on ball bearing sheaves ensures smooth line operation for control lines or mainsheets on small boats. Sheave Dia. 1 1 16" (27mm), Thickness 1 1 8" (28mm), Width 1 3 16" (30mm), Length 4 5 32" (106mm), SWL 500 lbs, Weight 3 oz. (85g), Max Line 5 16" (8mm)