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Amplified marine/powersport speaker bar with built-in Bluetooth®

Item # 1094100BLK

Awesome JBL sound isn't just for the great indoors anymore.

Awesome JBL sound isn't just for the great indoors anymore.

California customers:
Please click here for your Proposition 65 warning.

Discontinued item

Item # 1094100BLK

About the JBL UB4100BLK

Bring JBL sound to your outdoor life

Awesome JBL sound isn't just for the great indoors anymore. This amplified marine soundbar lets you bring JBL excellence to your boat, ATV, or even golf cart. Bluetooth® connectivity, plus 3.5mm and RCA inputs, lets you stream all kinds of music, while the built-in amp pumps out 240 watts of power for awesome sound.

Bring JBL sound to your outdoor life

Awesome JBL sound isn't just for the great indoors anymore. This amplified marine soundbar lets you bring JBL excellence to your boat, ATV, or even golf cart. Bluetooth® connectivity, plus 3.5mm and RCA inputs, lets you stream all kinds of music, while the built-in amp pumps out 240 watts of power for awesome sound.

JBL UB4100BLK Amplified Powersports Soundbar

Ideal for ATVs, UTVs, boats, and golf carts

Powerful speakers are just the start

This soundbar features four long-excursion 4" mid/woofers and a pair of high-output tweeters, so there's plenty of volume on tap. If that's not enough, two sets of preamps let you add additional amps and speakers or even a subwoofer to your system.

Cooler still, you can also use the JBL SK300 separation kit to split the unit into two speaker towers. That kit (sold separately) includes a 9.8' umbilical cable that connects the two speakers, along with rear and bottom filler plates.

Compact, powerful Class D amplifier

The ultra-efficient Class D amp kicks out 120 watts to each channel, and includes intelligent priority switching so it's easy to connect and enjoy your various devices. The 3.5mm jack overrides the Bluetooth, which in turn overrides the RCA inputs. That simplicity will come in very handy on the water or on the trail.

Installation is easy

The JBL UB4100 comes with a versatile mounting system that allows you to install it on a vast variety of roll bars, wake towers, and cages. The system includes universal mounting clamps, inserts, and quick-release brackets. It's easy to install and tough enough to withstand a 10g shock.

The detachable RF remote lets you control your music from wherever you are, and there's even a GoPro shoe so you can mount your action camera and capture all your biggest moments.

Have a party

With "Party Mode," you can simultaneously connect up to three Bluetooth devices to this JBL and share DJ duties with your friends, streaming from the device most recently selected while you pause the other two.

Looks good and built to last

The JBL UB4100 is made for the outdoors, with an IPx6 weatherproof and splashproof rating. It'll stand up to whatever you can dish out and keep the music going the whole time.

You'll also appreciate smart features like a glowing red front-panel LED display that flashes in time with the music and a dual-level LED light that'll be a big help when you need to consult a map. This soundbar is even future-proofed, with a micro USB connection that you can use to install JBL software updates.


Product highlights:

    General Features:
    • 31.5" sound bar designed for ATV, golf cart, and marine use
    • built-in Bluetooth for music streaming
    • IPx6-rated weatherproofing
    • automatic shut-off system protects battery
    • Party Mode works with up to three Bluetooth devices
    Audio Features
    • 4 marine-rated 4" long-excursion drivers
    • 2 marine-rated 2" dome tweeters
    • Class D amplifier (120 watts RMS x 2 channels)
    • frequency response: 50Hz-20kHz
    • maximum SPL: 100dB
    • 3.5mm and RCA auxiliary inputs for music players
    • 2-channel RCA preamp outputs
    • universal mounting clamps, inserts, and quick-release brackets
    Other Info:
    • front-panel red LED display and dual-level LED task light
    • use optional JBL SK300BLK kit to separate the unit into two speaker towers
    • dimensions: 31-1/2" x 6-1/8" x 5"
    • micro USB connection for software updates
    • warranty: 1 year
    • Our 60-day money-back guarantee
    • MFR # JBLUB4100BLK

    What's in the box:

    • Active soundbar speaker (attached 9' power/signal cable)
    • Passive soundbar speaker
    • RF wireless controller (RC001)
    • CR2032 3V battery
    • 2 RCA-to-speaker level adapters
    • Two 2-piece mounting brackets
    • Rear bridge-plate
    • Bottom bridge-plate
    • Threaded-post
    • Eight M6 x 85mm bolts
    • Eight M6 x 50mm bolts
    • 8 Machine screws
    • 2 Safety cables
    • Self-adhesive gasket
    • "JBL" logo sticker
    • Quick Start Guide
    • Important Safety Instructions
    • Gasket instructions
    • "Indications of Toxic and Hazardous Substances/Elements" note

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    More details on the JBL UB4100BLK

    Russ B.

    Product Research


    IPX6 Rating: The JBL Stadium UB4100 amplified powersports soundbar is water resistant with an IPx6 rating. It can withstand powerful jets of water, but should not be submerged into water.

    Full-Range Separable Speaker System: The JBL Stadium UB4100's high performance speaker array consists of a pair of 4" long excursion mid/woofers and one high output tweeter per channel. The Stadium UB4100 can also be separated into two speaker towers utilizing the optional JBL SK-300 separation kit (109300BLK, sold separately) which includes a 10' (3m) bridge umbilical cable and rear and bottom filler plates.

    Class D Amplifier: A high-efficiency Class D amplifier delivers 80 watts (RMS) per channel for loud, dynamic sound that is suitable for the outdoors while on the trail.

    Source Inputs: Equipped with Bluetooth, 3.5mm, and RCA inputs, the JBL Stadium UB4100 includes intelligent priority switching to greatly simplifying the user interface by completely eliminating manual source selection. The 3.5mm jack overrides Bluetooth, which overrides the RCA inputs.

    • Bluetooth Audio Streaming w/ Party Mode: The Stadium UB4100 is equipped with built-in Bluetooth for wireless audio streaming (A2DP) and basic control (A2DP) of stored music and music apps on your Bluetooth source device. Party Mode provides simultaneous connection of up to three Bluetooth source devices, while playing music from one device at a time. Audio will stream from the device most recently selected and pause the other two connected Bluetooth devices.
    • Dual Aux Inputs: In addition to wireless Bluetooth connectivity, the Stadium UB4100 is outfitted with 3.5mm and stereo RCA Aux inputs. If your source unit doesn't have RCA outputs, you can use the supplied speaker-level to RCA adapters to connect the source unit's speaker wires to the soundbar's Aux input. There is an input level switch (High or Low) based on what type of connection you use, plus a gain control for the Aux inputs.

    Detachable RF Controller: A detachable RF remote gives you control over your music wherever you are without having to aim the remote at the soundbar. You can control volume of your Bluetooth and Aux audio sources. You can control Play/Pause and Previous/Next Track functions of your Bluetooth source device.

    Audio Output: Full-range stereo RCA outputs enable you to expand the sound system with additional components such as a powered subwoofer or amplifier.

    Built-in LEDs: A glowing red LED display across the front panel flashes in time with the music. Plus, a dual-level LED light makes a perfect work light for reading maps or executing other on-the-move tasks.

    Auto Turn On: You can setup the soundbar to automatically turn on when it receives an audio signal from a Bluetooth source or either of the Aux inputs.

    Protection Circuitry: The power/protection LED flashes when amplifier shuts down due to over-current, over-voltage, over-temperature, or DC offset.

    Flexible Mounting Options: The JBL Stadium UB4100 utilizes a versatile mounting system with universal mounting clamps, inserts, and quick release brackets that offers easy installation and multi-mounting options. The mounting clamps support 1" (25mm) to 3.5" (89mm) diameter pipes.

    Attached Power & Ground Cable: The attached 9' power & ground cables will need to be connected to your vehicle's battery and chassis. You will need to install a fuse holder and 30A fuse between the power wire and battery connection.

    microUSB for Firmware Updates: A microUSB connection is provided to future proof the Stadium UB4100 with software & firmware updates.

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