“A bass rig revolution in headphones”: Fender issues massive free update for the Mustang Micro Plus – and it’s the one bassists have been waiting for

A Fender Mustang Micro and Mustang Micro Plus next to each other on a wooden floor
(Image credit: Future/Matt McCracken)

NAMM 2026: Fender is “dropping the hammer on the low end” as it rolls out a free update for its Mustang Micro Plus headphone amp that revitalises its compatibility with bass guitars.

Initially launched in 2024 for electric guitar and bass, the well-received device is getting a bass-centric boost with a free-to-download firmware update.

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A freelance writer with a penchant for music that gets weird, Phil is a regular contributor to Prog, Guitar World, and Total Guitar magazines and is especially keen on shining a light on unknown artists. Outside of the journalism realm, you can find him writing angular riffs in progressive metal band, Prognosis, in which he slings an 8-string Strandberg Boden Original, churning that low string through a variety of tunings. He's also a published author and is currently penning his debut novel which chucks fantasy, mythology and humanity into a great big melting pot.

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