AIRMAR® B619 20° Tilt Marine Subwoofers +0/-1 dB (1W into 4Ω):

+0/-1 dB (1W into 4Ω): 20 Hz - 20 kHz

and interior dash cam with a separate recording box

centered @ 40Hz (amps 1

less time positioning

AIRMAR® B619 20° Tilt Marine Subwoofers +0/-1 dB (1W into 4Ω):This bronze thru hull mount transducer performs well at high speeds and is an excellent choice for fiberglass and wood hulls. This 8 pin 500 W transducer has a depth of 900 ft; an operating frequency of 77 200 kHz; a beamwidth of 45 15 degrees; and a 16 to 24 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. *Do not use on metal hulls. Specifications: Transducer