M-Audio BX4 Powered Reference Studio Monitors

These budget-friendly monitors put out big sound, with 120 peak watts pushing 4.5" woofers, and 1/4-inch, 1/8-inch, and RCA inputs for your audio sources.

Are you unhappy with the sound quality of your built-in computer speakers? Looking to get a better listening experience for your favorite music, podcasts, live streams, video games, video calls and conferences? M-Audio BX4 monitors are the perfect choice. Compact, attractive and simple to install, M-Audio's BX4 desktop speakers have been meticulously created for you to experience your media like never before!

Immersive Listening Experience

Designed for live streaming, podcasting, gaming, watching movies or listening to your favorite music, M-Audio's BX4 monitors provide and impressive 120 Watts of crystal-clear sound inside an attractive, style-driven design. The two-way design features an Acoustically-inert MDF cabinet with bass reflex that facilitates a smooth low end and punch through the Black Kevlar low frequency drivers. Plus, the enhanced rear ports add extended low-frequency response making any video-game, movie or song you play a truly immersive experience. Add to this the computer-optimized natural silk dome tweeters for a crystal clear high-end and precise stereo image, and the BX4 delivers pristine sound quality perfect for any multimedia application.

Perfect Connections

The rear panel connections offer 1/4-inch, 1/8-inch, and RCA inputs, making them compatible with all your gear. There is even an 1/8-inch aux input and headphone connection on the front of the speaker for your tablet, computer, or mobile device.

Tailor Made Sound

With the BX4, no stone read more is left unturned when it comes to providing you with the ultimate customized listening experience. High-EQ and Low-EQ controls dial in the perfect sound for your environment. The Left/Right Active Speaker Position switch even lets you choose which speaker is the Left or Right side - particularly useful if you are left-handed and want the speaker with the front panel volume control on your left side.


- 4.5-inch Black Kevlar low frequency drivers; 1-inch natural silk dome tweeters
- New computer-optimized tweeter waveguide for precise imaging
- High-EQ and Low-EQ controls for dialing in the perfect sound
- Enhanced rear ports for extended low-frequency response
- Left/right Active Speaker Position switch for configuring which side has volume control
- 1/4-inch, 1/8-inch, and RCA inputs for connecting to virtually any audio source
- Front 1/8-inch AUX input for quick connection of smartphones or other audio sources
- Acoustically-inert MDF cabinet with bass reflex design for deep, rich sound
- Includes 1/8-inch speaker interconnect cable, 1/8-inch to 1/8-inch cable and 1/8-inch to RCA cable
- The BX4 comes complete with a software package, including MPC Beats, a powerful DAW to suit your production needs

What's in the Box?

- BX4 Speakers (Stereo Pair)
- Foam Feet
- 2-Prong IEC Power Cable
- 1/8" TS Speaker Interconnect Cable
- Product Registration and Support
- 1/8" to 1/8" TRS Aux Cable
- 1/8" TRS to RCA Cable
- User Guide
- Safety & Warranty Manual
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
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Frequency Response: 69Hz - 22kHz
Output Power: 120W (total peak), 2 x 25W (RMS)
LF Driver: 4.5" / 114.3 mm
HF Driver: 1" / 25.4mm; silk dome
Audio Inputs:
- 1 RCA stereo input pair
- 2 1/4" (6.35mm) TRS inputs
- 1 1/8" (3.5mm) stereo auxiliary input
Headphone Output: 1/8" (3.5mm) stereo output
Interconnection Cable: 1/8" (3.5mm) TRS
Power: 100-240 VAC, 50/60Hz, 85W

Dimensions (width x depth x height, per speaker): 6.1" x 6.9" x 8.9" (156 x 175 x 225 mm)
Weight (per speaker): 9.83 lbs (4.46 kg)
Dimensions and Weight in Packaging
Shipping Weight: 13.75 lbs
Shipping Dimensions: 18 x 14 x 11 in
Manufacturer Part Number (MPN): BX4PAIR

For support or warranty questions, please contact the manufacturer:
Phone: 401-658-5765


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