(4) Rockville RWB90B Black 8" Marine Wakeboard Swivel Speakers+Amp+Receiver

$959.96 $584.85 Save 39%
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Product Description

Package Includes:

  • (2) Pair Rockville RWB90B Black 8" 300w Marine Wakeboard 360° Swivel Tower Speakers
  • (1) Rockville DBM45 4-Channel 2000w Peak/500w Dyno-Certified RMS Marine/Boat Amplifier
  • (1) Rockville RGHR2 Marine Gauge Hole Receiver w Bluetooth USB, Radio + Wired Remote
  • (1) Rockville RMWK4 4 AWG Gauge Waterproof Marine Amplifier/Amp Install Wire Kit


Video of RWB:

  • (2) Wakeboard Speakers
  • (2) 360


    Swivel Mounting Brackets
  • Integrated Grill
  • Installation Hardware
  • Description:

    • No exaggerated power ratings: These speakers are rated with true world RMS ratings. No bootleg or exaggerated power ratings like other brands. These speakers are 200 watts RMS and 300 watts peak. (200 watts RMS is equal to about 500 watts rated by other brands)
    • Marine grade components and materials: these speakers are truly marine grade. They will not get damaged by water, salt water, or moisture. In addition the terminals (which are normally the first part of a marine speakers that gets damaged by water are made out of stainless steel and they are completely rustproof. There is also an additional waterproof coating cut completely protect the speakers.
    • These can withstand all elements on the water for a lifetime of worry free use
    • The mounting screws are longer than other versions we carry to accommodate thicker mounting bars. In addition to wakeboard tower's on boats, we tested these to be perfect for installing in Jeep Cherokee vehicles and even ATV's.
    • We’ve added a new and improved nylon mounting bracket. Nylon is strong, light weight, and can withstand the toughest conditions. The bracket features a special UV coating to protect it from the elements. A 360° rotating mechanism built into the bracket allows you to position the speaker in any direction for optimum listening enjoyment. This also gives you the ability to rotate the speaker to the front or rear of your boat for different applications.


    • Pair Rockville RWB90B Black 8" 300w Marine Wakeboard 360° Swivel Tower Speakers
    • 8" Two-Way High Fidelity Speaker System
    • Adjustable Nylon Mounting Bracket Reinforced With Embedded Steel
    • Includes Stainless Steel Mounting Hardware
    • 1" Polymide Dome Neodymium Midrange Tweeter
    • Built-In Two-Way Crossover Network
    • Fully Marinized Against Salt & Fresh Water Conditions
    • Completely Water / Rust Resistant
    • Terminals Are Sealed with Rubber Gaskets
    • Specially Tuned for PA Voice Over
    • Polypropylene Mica Injected Cone with Santoprene Surround
    • High BL Magnet Motor Structure
    • Y30 High Density Magnets
    • Oversized 1.25” Kapton Voice Coil
    • Large mounting screw accommodates roll bars found on many off road vehicles such as Jeep Wranglers, and ATV's equiped with a roll bar/cage.
    • These Wakeboards Fit bars ranging from 1.26" 2.87"
    • Color: Black
    • Includes 65mm and 80mm screws that accommodate Jeep Wrangler and any roll bar
    • Includes Stainless mounting hardware that wont rust or corrode


    • Peak Power Handling: 300 Watts
    • RMS Power Handling: 200 Watts
    • Frequency Response: 60–20,000 Hz
    • Sound Pressure Level: 98dB @ 1w/1m
    • Impedance: 4 Ohms
    • Mounting Depth: 10.5"

    The Rockville Difference:
    Whenever you see the Rockville shield on a product you know that it has the stamp of approval. While other companies simply import products from China, Rockville manufactures the products in China to lower your cost but do so under American style supervision and quality standards to get you that USA quality that you want!

    About Rockville Quality Control Procedures:
    The Rockville brand stands for Quality, Innovation and Value. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All user functions are tested and all internal components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. All Rockville products are backed with a hassle free warranty, though it is unlikely that you will need to use it.

    Great features and great quality make Rockville a great choice.


    All about your RGHR2:

    How To Set Up Your RGHR2:

    Included in the box:

    • Marine digital media receiver
    • Wired remote with 32.8 foot wire
    • USB extension cable (40 inches)
    • Mounting bracket
    • Screws
    • ISO wiring
    • Owner manual and warranty


    The Rockville RGHR2 is the best gauge hole receiver on the market. We developed this to give you the best sound and the best features.

    Crazy loud!
    We put in a built in amplifier that is louder than other marine receivers on the market. The RMS power of the built in amp is 28 watt x 4 channels! It is crazy loud and can be heard over the sound of the wind when you are on the water! There is also a built in EQ to customize the sound to your taste.

    Included wired remote
    Rockville is the only brand on the market that I know of that supplies a wired remote with your radio. The wired remote is a must have for any marine radio. This is great for boats and other powersport applications. We also include an extra long 32.8 foot wire so you will not need any additional extension cables.

    Latest listening features
    The RGHR2 gives you many listening options. The Bluetooth technology allows you to stream audio from your Bluetooth enabled phone or other music player to the receiver. Our Bluetooth distance is 50 feet! There is also a USB input allowing you to listen to music stored on a thumb drive. You can plug in any audio device to the auxiliary input. There is a built in radio with crystal clear reception as well.

    Ability to connect multiple external amps
    This receiver makes your system expandable. Two sets of pre-amp outputs allow you to hook up external amps for your speakers and/or subs. This has front and switchable rear/sub pre-amp outputs so you can amplifiy your speakers and a subwoofer amplifier.


    • Rockville RGHR2 Weather Resistant Gauge-Hole Digital Media Receiver w/Bluetooth/USB/AM/FM
    • Fits into a standard Gauge-Hole (Tachometer) Opening
    • Built-in 72 x 4 Watt Peak high powered amplifier (28 x 4 RMS)
    • Built in EQ with preset EQ curves (Pop, Class, Rock, Flat)
    • IP66 Waterproof Certification (Tested to withstand the elements)
    • USB Input to play back audio files store on a USB thumb drive or any other USB device
    • RCA Aux Input
    • AM/FM Radio Built In with 18 FM and 12 AM presets + US and European tuning
    • Bluetooth built in to stream audio from any Bluetooth enabled device
    • USB Input Charges Your Phone
    • Two Sets of RCA Outputs (Front and a switchable rear/sub) allow you to connect external amplifiers
    • Big easy to use buttons
    • Backlit LCD display
    • Wired Remote Control Included (normally $50)
    • Required cutout: 2.96" (diameter) x 2.75" (depth)
    • USB is 500mA and 5V and supports 16GB max
    • Dimensions:
    • 2.96" cutout mounting diameter
    • 4.45" diameter top plate
    • 3.9" mounting depth (not including top plate)
    • 5.0" depth including the top plate
    • Specs of the built in amplifier:
    • TDA7851L quadbridge power amplifier
    • 4 x 72 watts peak @ 2 ohm
    • 4 x 48 watts peak @ 4 ohms
    • 4 x 28 watts RMS @ 4 ohms
    • Highly efficient even when running at 2 ohms!
    • Low distortion even at top volumes


    Video of RMWK:


    • Rockville RMWK4 4 AWG Gauge Waterproof Marine/Boat Amplifier Wire Installation Kit
    • 20 ’ Translucent, Twisted Pair, High Quality, Tinned-OFC Flexible PVC RCA Cable
    • 18’ 4 Gauge High Current, Low Impedance, Clear Flexible Power Cable with 3’ Black Poly Woven Mesh to better resist chemicals in the battery compartment
    • 18’ 4 Gauge High Current, Low Impedance, Light Blue, Flexible Ground Cable
    • 25’ 16 Gauge 100% Tinned-CCA, White, Non-Transparent Resin PVC, Flat Speaker Cable
    • 25’ Blue Remote Wire
    • (1) Silver Mini-ANL Fuse Holder – Clear Shell and Clear Blue Bottom Bracket with Blue Waterproof Ring
    • (1) 120A Mini-ANL Fuse
    • (1) 80A Mini-ANL Fuse
    • (2) Ring Terminals
    • (2) Spade Terminals
    • (5) Speaker Cable Terminals
    • (1) Washer
    • (10) White Cable Ties

    How To Install a Marine Amplifier onto Your Boat:

    Video of DBM45:

    What's in The Box:

    • DBM45 amplifier
    • PA microphone
    • Birth sheet with tested power
    • Mounting screws
    • Warranty card
    • Owner’s Manual


    The all new dB marine series of amplifiers gives you the best of both worlds! We took the sound of our best-selling series of dB car amps and we added top of the line marine grade parts so that they will last forever and withstand even the harshest conditions on the water.
    We went a little overboard (no pun intended) to make this amp marine ready. We conformal coated the PCB board with a waterproof glue that is painted on to protect the circuitry. We then added waterproof silicone covers over the terminals so that water can never get into the amp. The heat sink, including the bottom plate, is made of aluminum which is rustproof. The end panels, internal mounting screws and hardware of the amp are made of stainless steel and are rustproof. Even after many years of use the amp will be rust free and operate like new!

    The DBM45 is a 4-Channel high power amplifier with 2,000 watts peak output and 500 watts Dyno Certified power. Here at Rockville we offer the best value in car audio. We therefore want to make it easy for you to compare our products to any brands on the market. The peak rating can be used to compare with brands who use peak ratings such as Boss and Power Acoustik while the Dyno Certified RMS rating can be used to compare with top brands such as Kicker, Rockford, Alpine, etc.

    This amp has a very cool fully adjustable 12dB/Octave crossover. What is cool about it is that our crossover supports low pass, high pass, bandpass, and subsonic. This makes our amp ideal for subwoofers (sealed and vented), full range speakers, and midrange speakers. In high pass mode we allow you to filter out frequencies between 15Hz - 4K Hz. In full mode you will not be filtering any frequencies. The really cool part is in low pass mode you can use the high pass and low pass mode. So for example you can set the low pass mode to 50 hz, and then you can set the high pass to 15 Hz. In this case you would be playing frequencies in the range of 15-50 Hz on this channel. This would be an example of using the subsonic filter. Another option you have is for midrange speakers, you can use our low pass filter and set it really high. Lets say to 150 hz. And then you can set the high pass to 3K hz and your midrange speakers will only play that frequency range. Our advanced crossover technology will allow you to really fine tune each speaker to get the sound you desire.

    The dBM45 is protected by a fully IC controlled circuit which includes mute, delay, soft start technology so that the amplifier will turn on safely every time and protect your speakers from popping.

    We are so confident in your satisfaction with this amplifier that we will offer you a 90 day money back guarantee. If this amp does not perform as well as you expected, we will send you a pre-paid shipping label and give you your money back. This means that, if for any reason you want to return the amplifier for a full refund within 90 days, you can! (Amp must be complete along with the box).


    • Rockville DBM45 4-Channel 2000w Peak/500w Dyno-Certified RMS Marine/Boat Amplifier
    • Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc)
    •  2 Ohm: 125 Watts x 4 Channel
    •  4 Ohm: 85 Watts x 4 Channel
    •  4 Ohm Bridged: 250 Watts x 2 Channel
    • Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc)
    •  2 Ohm: 500 Watts x 4 Channel
    •  4 Ohm: 340 Watts x 4 Channel
    •  4 Ohm Bridged: 1000 Watts x 2 Channel
    • Painted Conformal Coating PCB Board (Uses 2577 Waterproof Glue)
    • Waterproof silicone covers for end panels
    • Rustproof Aluminum heat sink with white painted finish
    • Stainless steel end panels are rustproof
    • All screws and mounting hardware are stainless steel and rustproof
    • Bottom panel is aluminum and rustproof
    • All channels on the amp have crossovers so they can each be used for subs or full range speakers or tweeters or midrange speakers
    • All channels on the amplifier are bridgeable
    • Fully Adjustable 12dB / Octave Crossover with Differential Circuitry
    • Adjustable Subsonic Filter: 15Hz -40Hz (This filter is on the HPF knob)
    • Adjustable Low Pass Filter: 40Hz – 4KHz
    • Adjustable Band Pass Filter: 15 Hz - 4 kHz (use both the HPF and LPF filter)
    • Adjustable High Pass (Subsonic) Filter: 15 Hz - 4 kHz (use both the HPF and LPF filter)
    • Fully Adjustable 12dB Bass Equalizer
    • 2CH/4CH Input Mode Switch
    • Status Mode LED Indicator
    • Adjustable Input Level Control
    • Mute and Delay Soft Start System
    • Minimum THD at Rated Power: <0.05%
    • S/N Ratio: >90 dB
    • Frequency Response: 10 Hz - 50 kHz
    • Damping Factor: >85 @ 100Hz
    • (2) 35 Amp ATC Fuses
    • High-Speed MOSFET Power Supply
    • Studio-Grade Bipolar Output Stage Transistors
    • 8 Volt Preamp Circuitry
    • 35 Amp x2 ATC Fuse
    • Microphone input and PA microphone included
    • Product Dimensions (W x H x L): 9? x 2.4? x 15.1? inches
    • Product Weight: 7.7 Lbs

    Shipping & Returns

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