M-Audio BX4 Studio Monitor Speakers – Pair


  • 4.5″ Kevlar low frequency drivers; 1″ 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″, 1⁄8″, and RCA inputs for connecting to virtually any audio source
  • Front 1/8″ 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″ speaker interconnect cable, 1/8″ to 1/8″ cable and 1/8″ to RCA cable
  • Production Software Suite with Pro Tools | First M-Audio Edition and 20 Avid Effect Plugins included.
SKU: A18773 Category: Tags: ,

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Product Description

The BX4 from M-Audio is a 2-way, studio monitor designed to offer a wide frequency response and easy configuration for producers, podcast creators, mixing engineers, and others who require a critical ear. The monitor produces a frequency response of 69 Hz to 22 kHz, thanks to two amplifiers feeding a 4.5” Kevlar woofer and 1” silk-dome tweeter.

A rear-mounted bass port delivers extended bass response, while the tweeter’s computer-engineered waveguide yields a wide sweet spot and minimized high-frequency scatter. Volume and high- and low-frequency controls are provided, so you can tune the monitor to cooperate with the sound of the room. The monitors have both RCA and balanced 1/4″ jacks, so you have your choice of what kind of device you input into the speakers.

One monitor houses the power and controls, distributing power to the other by means of an included 3.5mm TS interconnect cable. Choose which monitor is on the left and which is on the right, ensuring everything is playing back correctly by means of L/R switches on the rear.

If you want to monitor privately, you can do so via the front-mounted 3.5mm headphones output with volume control. Also, plug in your favorite compatible media player by means of the 3.5mm auxiliary input. The monitors ship with a copy of Pro Tools | First, so you can get started manipulating audio in the digital world right away.

Thoughtful Construction
The two-way design features an acoustically inert MDF cabinet with bass reflex that provides smooth low end and punch through the black Kevlar low-frequency drivers. Plus, enhanced rear ports add extended low-frequency response, which makes any video game, movie, or song you play sound full and rich. The computer-optimized natural silk-dome tweeters ensure you hear all the high-end frequencies and provide precise stereo imaging.

The rear-panel connections offer 1/4″ and RCA inputs making them compatible with all your gear. There is an 3.5mm aux input and headphones connections cleverly placed on the front of the speaker for your tablet, computer, or mobile device. These connections allow you to work privately and are ideal for reproducing any type of media.

Sound-Shaping Tools
High and low EQ controls help you dial in the perfect sound for your environment and let you customize the sound of the BX4. The left/right active speaker position switch lets you choose which speaker is the left or right side. This is very useful if you are left-handed and want the speaker with the front panel volume control on your left side.

Pro Tools | First M-Audio Edition Included
Pro Tools is the industry standard for recording software. This amazing audio and MIDI recording software helps inspire any musician, podcaster, live streamer or singer-songwriter to create, record and share all their ideas across the world at any time. Pro Tools | First M-Audio Edition features Unlimited Busses, Elastic Time and Elastic Pitch, Offline Bounce and 1GB of free cloud storage space for collaboration or accessing your projects from any computer anywhere that is connected to the internet, plus compatibility with all the included AIR Music Tech Virtual Instruments. This amazing software recording package is primed to get your ideas out of your imagination and amplified into the world.

What's in the box

  • M-Audio BX4 Studio Monitors – Pair
  • 1/8″ speaker interconnect cable, 1/8″ to 1/8″ cable and 1/8″ to RCA cable
  • Production Software Suite with Pro Tools | First M-Audio Edition and 20 Avid Effect Plugins.


  • Frequency Response: 69Hz–22kHz
  • Output Power: 120W (total peak), 2 x 25W (RMS)
  • LF Driver: 4.5”
  • HF Driver: 1” silk dome
  • Audio Inputs: One RCA stereo input pair, two 1/4” TRS inputs, one 1/8” stereo auxiliary input
  • Headphone Output: 1/8” stereo output
  • Interconnection Cable: 1/8” TRS
  • Power: 100–240 VAC, 50/60Hz, 85W
  • Dimensions (width x depth x height, per speaker): 6.1” x 6.9” x 8.9”
  • Weight (per speaker) 9.83 lb.

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