![]() | Type : One PCS Audio Unit Package: |
![]() | Type : Audio Unit + 4 inch Black Round Speakers+ Black Antenna ( SKU: NW-307-4001B-056B-US ) Package: One PCS Audio Unit One Pair Black 4 inch Round Speakers One PCS Black Antenna |
![]() | Type : Audio Unit + 4 inch White Round Speakers+ White Antenna Package: |
![]() | Type : Audio Unit + 6.5 inch White Round Speakers+ White Antenna Package: |

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.
Latest listening features:
The GR305 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. This has front and switchable rear outputs so you can amplifiy your speakers and a subwoofer amplifier.
Features:
Fits into a standard gauge -hole (tachometer) opening
Built-in 72*4 watt peak high powered amplifier (28*4RMS)
Built-in EQ with preset EQ curves (pop classic the elements)
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.USB input supports 16GB max
RCA Aux input
AM/FM radio built-in with 18 FM and 6AM presets +US and European tuning
Bluetooth built-in to stream audio from any Bluetooth enabled device
Two sets of RCA outputs (front and a switchable rear) allow you to connect external amplifiers
Big easy to use buttons
Required cutout: 3.72″(diameter)×2.76″(depth)
USB is 500mA and 5V, supports charging MP3/WMA
Amplifier Specs:
TDA7851L quad bridge power amplifier
4×72 watts peak @ 2 ohm
4×48 watts peak @ 4 ohms
4×28 watts RMS @ 4 ohms
Dimensions:
3.72 inch cutout mounting diameter
4.45 inch diameter top plate
2.76 inch mounting depth (not including top plate)
3.74 inch depth included the top plate




1.Orders will be shipped within 1-2 business day after payment cleared.All items will be tested in advance before sending out.
2.We ship to Confirmed EBAY Addresses.
3.This item will ship from our US warehouse by standard shipping(1-6 working days).
30DAYS MONEY BACK GUARANTEE
1. All items come with basic 60 days sellers warranty, if item defective within 60days,
we will offer replacement without extra charger after we receive the defective item.
2.If item defective after 60days, buyers might need pay the shipping fee for the replacement.
3.Due to the recent lack of logistics transportation capacity(Only for orders ordered from Friday evening to Sunday, and logistics and transportation are normal from Monday to Thursday.), if you use standard transportation (UPS Surepost), transportation in some areas may be delayed for 3 working days before it can be shipped from the logistics provider’s warehouse. You can also choose USPS Priority Mai, which will be shipped and shipped immediately within one working day after your payment. The time limit for normal shipping can be successfully delivered in about three days.
1.If you are dissatisfied for any reason, please do not be quick to leave negative/neutral feedback. Please do contact us first,We will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you
2. Our working time: Monday to Friday.

