M-Audio BX4 Review: Expert sound analysis

Alistair Vance
Written by Alistair Vance

March 31, 2026

M-Audio BX4

M-Audio BX4 Review: Expert sound analysis

Main features of M-Audio monitors

  • Tweeter: 1″ (25.4 mm) silk dome tweeter
  • Woofer: 4.5″ (114.3 mm)
  • Kevlar diaphragm
  • Output power: 120 watts, 2x 25 W (RMS)
  • Frequency range: 69 – 22000 Hz
  • Inputs: 2x RCA, 2x 6.35 mm jack (TRS), 1x 3.5 mm stereo aux input
  • Headphone output: 3.5 mm stereo jack
  • Controls: Volume control, high and low EQ controls, speaker position switch
  • Housing made of coated MDF
  • Power consumption: 85 W
  • Power supply: Internal power supply 100 – 120 V / 220 – 240 V, 50/60 Hz
  • Dimensions per speaker (W x D x H): 156 x 175 x 225 mm
  • Weight per speaker: 2.23 kg
  • Includes 3.5 mm interconnect speaker cable, 3.5 mm to 3.5 mm jack cable and 3.5 mm jack to RCA cable
  • Incl. Software (Download) MPC Beats (3 Virtual Instruments – TubeSynth, Electric, Bassline, 80 FX Plugins – AIR Channel Strip, Half Time, 2GB of factory content with bonus F9 instruments library)

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M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

M-Audio BX4 Review: Expert sound analysis

Additional Information

Customer Review Summary

The M-Audio BX4 monitors are a remarkable choice for those seeking quality sound in a compact form. They deliver impressive audio clarity, with a balanced output that excels in both highs and mids, making them suitable for various uses, from casual listening to home studio applications. Users have noted that the bass response is substantial for their size, providing a satisfying depth without overwhelming the overall sound profile.

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In terms of design, these monitors are aesthetically pleasing and robust, fitting well in small spaces, which is ideal for home environments or small studios. They come equipped with useful features such as front-facing volume control, bass and treble adjustments on the back, and a headphone jack that mutes the speakers when in use.

While the BX4s are generally praised for their sound quality, some users have pointed out that they can exhibit a slight bass-heavy character, which might require some adjustment depending on your listening preferences. Additionally, their small size means they may lack the low-end depth expected from larger monitors, but they more than compensate with their clear and articulate sound reproduction.

Overall, the M-Audio BX4 monitors provide excellent value for money, making them a fantastic option for beginners and more experienced users alike who need reliable and compact monitors for music production or general listening. They have proven to be a solid investment, especially for those not looking to break the bank while still wanting quality sound.



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Alistair Vance

Based in Bristol, Al has spent over a decade mixing local bands before specialising in hybrid studio consulting. He’s obsessed with the price-to-performance ratio, helping musicians achieve a "Radio Ready" sound without the need for a £50,000 Neve console. No fluff, just honest gear reviews to get your tracks sounding professional on a real-world budget.

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