Marine damping
"The 2024 yamaha jetboat (1 eng) has had factory design mod’s to reduce the higher pitched noise. It helps but the boat still needs / I wanted less of this in the 1 - 4khz range. Mega CLD (20 sq ft) & Lockout (8 sq ft) were ordered. Installed now are about 16 sq ft & all of the Lockout. It has definitely helped. We’re able to hold a decent conversation now while cruising. I did order 5 more sq ft that I want to still install. Areas treated in order of most squares used are - ^ bilge / rear area + waterbox was covered (rearmost 80% - caution on front ‘fresh eng exh side’). + under swim platform standing area fiberglass + floor / sides some + under swim platform seat lg access cover. ^ Eng bay - factory foam has been left alone - no CLD added yet. + Front of bay lower + rear top of bay + Drivers side (port) rear seat - 2 squares against eng side. This boat is fiberglass & resonates with eng & jetpump higher freq’s. Resonix is my helper."