BOSS Audio MCBK420B Bluetooth UTV/Motorcycle Speaker System – Complete Review

Bluetooth UTV speakers offer a lot of flexibility. They are wire-free and easy to connect. They have universal mounting and can be installed on ATVs, UTVs, motorcycles, golf carts, snowmobiles and boats. Almost all UTV speakers are water-resistant and shockproof. They are designed to handle impact and abuse in the sun, rain and wind.

If you are looking for a good UTV speaker system that has its own amplifier, we suggest you check out the Boss Audio MCBK420B. It is a high-performance stereo system with Bluetooth and AUX connectivity. It has a powerful external amp with a max power of 600 watts. The speakers are sold in pairs and produce rich and impactful audio with plenty of bass. The sound is loud enough for adventure sport vehicles and easily rides over engine sounds.

Boss Audio MCBK420B – Audio performance, Features & Design :

Sound Quality :

The Boss Audio MCBK420B consists of a pair of high-definition speakers and an amplifier. Each speaker is fitted with a 3-inch full-range driver. It enlarges the sweet spot and spreads sound over a wide area so everyone can enjoy the music. The amplifier is a Class A/B type 2-channel amplifier. It is more efficient than conventional Class A amps as the developers have created a specific linear circuitry that counters distortion. The upgraded circuit also maximizes power output and enhances the performance of the speakers. Peak power capacity of the amplifier is 600 watts. It produces deep and intense audio that is sure to keep you and your friends entertained throughout the ride. Frequency response of the Boss Audio MCBK420B is 80 Hz to 15 kHz and total harmonic distortion is less than 0.01%.

Technology And Design :

The Boss Audio MCBK420B is a weatherproof sound system. It is built for all kinds of terrain and can withstand direct sunlight, fog, dust, wind and light showers. It can resist water but is not fully waterproof. So take care not to dip it in water. The amplifier is also weatherproof. It has a remote volume control wired to it for quick and easy volume adjustments. You can have the remote control close to the handlebar or steering wheel so you can reach it comfortably. The amp has LED indicators to show the power and connectivity statuses. The MCBK420B has Bluetooth for wireless sound input. It has Bluetooth Audio Streaming which means you can directly stream music on your phone and play it through the speakers. The device is compatible with all iOS and Android systems, and supports music apps like Spotify and Pandora. For wired audio input, a 3.5mm AUX in jack is provided on the side of the amplifier. It is compatible with the AUX output of smart phones, tablets, MP3 players, etc. The Boss Audio speakers have a matt black color. The face has a diameter of 4.06 inches. Height of a speaker from the mounting clamp to the top is 6.73 inches. Depth of a speaker from front to back is 4.78 inches. The amplifier measures 3.5 inches by 1.5 inches by 3 inches. The speakers fit 0.75 to 1.25 inch bars. They come with all the necessary wiring and mounting gear. You can secure them on UTV roll cages or bike handlebars. For power, the speakers need a 12 volt vehicle. The product has a standard warranty of one year, extendable up to 3 years.

Let us now summarize the key features of the Boss Audio MCBK420B.

Key Features :

  • Pair of 3-inch weatherproof UTV speakers with external amp.
  • Bluetooth, AUX input, Bluetooth Audio Streaming.
  • Weatherproof Class A/B amplifier with inline volume remote control.
  • Peak power 600 watts, fits 0.75 to 1.25 inch handlebars.
  • Suitable for ATV, UTV, motorcycle, scooter, golf cart, cruiser bike.


Enjoy your outdoor parties with these best in-class tailgater speaker.


Leave a Comment