Boss BX-40 4-Channel Mixer

$40.00 Price Tier: Budget

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Page last updated May 04, 2026

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We compare 600+ stores and found this item at 1 store. Prices updated May 4, 2026.

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$40.00 2 available Used

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Average Price: $40

Budget/Beginner

$200

$1001+

Price Tier

In the Mixers category, Boss BX-40 4-Channel Mixer is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Description

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The Boss BX-40 4-Channel Mixer is a versatile and reliable choice for musicians and audio enthusiasts seeking a compact yet powerful mixing solution. Designed to streamline your audio setup, this mixer is perfect for small studios, live performances, and home recording sessions. It features four input channels, each equipped with its own level control, allowing you to fine-tune your mix with precision. Whether you're blending vocals, instruments, or other audio sources, the BX-40 provides clear and balanced sound output.

This mixer is built with simplicity and efficiency in mind. Its intuitive layout makes it easy to operate, even for those new to audio mixing. The BX-40 includes a master volume control and a headphone output, enabling users to monitor their mix in real time. Durable construction ensures longevity, while its compact size means it won't take up much space in your setup.

Key Features:

4 input channels with individual level controls
Master volume control for overall mix adjustments
Headphone output for real-time monitoring
Compact and durable design
Ideal for small studios, live performances, and home recording setups

Product specs

Brand	Boss
Model	BX-40 4-Channel Mixer
Year	1980s
Made In	Japan
Categories	Audio Mixers, Consoles and Summing Boxes
Electronics	Analog, Solid State
Format	Desktop Standalone
Number of Analog Inputs	4
Number of Analog Outputs	1
Number of Channels	4

FAQs

How many channels does the Boss BX-40 mixer offer for audio input?: The Boss BX-40 mixer provides four analog input channels, allowing you to connect multiple audio sources simultaneously.
Is the Boss BX-40 mixer suitable for live performances or studio use?: The Boss BX-40 is an analog, solid-state mixer designed primarily for studio use, offering straightforward mixing capabilities for small setups.
What type of outputs does the Boss BX-40 mixer have?: The Boss BX-40 mixer features one analog output, making it ideal for directing mixed audio to a single destination, such as a recording device or amplifier.
Can the Boss BX-40 mixer handle digital audio inputs?: No, the Boss BX-40 mixer is an analog mixer and only accepts analog audio inputs, making it best suited for setups using analog gear.
What is the format of the Boss BX-40 mixer?: The Boss BX-40 is a desktop standalone mixer, designed to sit on a flat surface for easy access during mixing sessions.

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Boss BX-40 4-Channel Mixer.

Comparisons

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The Boss BX-800 and KM-60 are preferred for their unique color, but the KM-60 may cut sub-bass due to a potential switch issue.
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The Yamaha MV802, a 2U rack unit with effect send and mic preamps, is suggested as a cleaner alternative, though it requires using two channels for stereo input.
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The Bastl Dude mixer is highlighted for offering up to +20dB gain, which can be useful for boosting weak signals and saturating line-level signals.
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Use cases and applications

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The BX series mixers are noted for their ability to overdrive individual channels, adding character rather than transparency.
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The BX series is often used in conjunction with other coloring devices like the Sherman Filterbank and RAT clone for enhanced sound character.
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Users often use the BX series mixers in parallel configurations, sending drums through them to blend distorted output with the clean mix.
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Some utilize the Boss BX-8 for its overdrive capabilities, noting its effectiveness despite its simplicity, aligning well with electronic music production needs.
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Features and functionality

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Owners mention using the Boss BX-40 as a submixer to provide a consistent tonal color across multiple synths.
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The Koma Elektronik Field Kit and Field Kit FX offer a 4-channel mixer with substantial gain, providing alternative features at a competitive price point.
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User experience

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The Boss BX-600 is favored over the BX-800 for its more manageable size and retained functionality, despite the latter's abrasiveness in overdrive.
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Owners find the BX series mixers excellent for distortion effects, especially when used as parallel processors to preserve fundamental bass tones.
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Value and pricing

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The Boss BX-40 is recommended if found under $100, as its distortion quality is appreciated but the small knobs make it easy to overdrive.
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Build quality

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Users appreciate the BX-8's durability and reliability, contrary to expectations, with its small knobs being a common point of contention for ease of use.
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