Package includes: 2 pairs of rockville ms40b black 4 200 watt marine boat speakers compact and powerful 1 mb quart na2-320.4 320W rms 4-channel amplifier amp for polaris rzr atv utv cart 2 pairs of rockville mac40s 4 chrome swivel aluminum tower handlebar speaker pods atv utv video of ms40: features of ms40b: pair rockville ms40b 4 200 watt waterproof marine boat speakers peak power: 200 watts per pair 100 watts each rms power: 50 watts per pair 25 watts each color: black injection molded polypropylene cone aluminum voice coil with asv winding cloth surrounds impedance: 4 ohm frequency response: 122hz 20 khz sensitivity: 85db 1w 1m high quality magnet: 3.5 Oz y30 ferrite magnet 1 inch asv voice coil ip56 waterproof rating fully marinized against salt & fresh water conditions owner’s manual features of na2-320.4: Mb quart na2-320.4 320W rms 4-channel amplifier 4 polaris rzr atv utv cart marine grade protection pre-amp circuitry: the highly engineered q-stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality inputs: 2 pair high temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant four channel operation complete control of amplifier signal essential when using two or more amplifiers full range class d: high efficient circuit topology which helps the amplifier develop a lot of power in a very small heatsink stable power through the pc board with minimal heat generation...
Package includes: 2 pairs of rockville ms40b black 4 200 watt marine boat speakers compact and powerful 1 mb quart na2-320.4 320W rms 4-channel amplifier...show more
