Fender Mustang Micro Plus Upgrade for Bass Guitars]

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.

“This isn’t just bass capability,” Fender says. “It’s a full-blown bass rig revolution in headphones, turning the Micro Plus into the ultimate silent-practice accessory.”

So, what’s new? Well, there are 10 new bass amps and tone models for starters, from the “thunder” of the Super Bassman and vintage charm of the Bassman TV, through to the more modern-minded Rumble V2/V3 and generous headroom of the Dual Showman.

But not all of its amps are Fender builds. From outside of Fender’s sonic borderlines comes the celebrated SWR Redhead combo amp; the Rockin’ Peg, inspired by the 300W Ampeg SVT; and a Flip Top preset that offers “classic thump,” which is potentially based on the Ampeg B-15 Portaflex.