The World’s Favorite Small Combo — Now Better Than Ever

The Fender Blues Junior™ IV is the amp that never leaves the stage. One of the most beloved small combos ever made, the fourth generation refines everything that made the original great — a modified preamp circuit for increased fullness, smoother spring reverb, and updated aesthetics — while keeping the warm, expressive 15-watt tube tone that players have trusted for decades. Whether you’re heading to a gig, a session, or a rehearsal, the Blues Junior IV is ready the moment you plug in.

Modified for More. Better in Every Way.

Fender’s engineers didn’t just reissue the Blues Junior — they improved it. The preamp circuit has been revoiced for increased fullness and body, giving single-coils and humbuckers alike a richer, more three-dimensional tone. The spring reverb has been refined for smoother, more natural decay that enhances your playing without overwhelming it. And the Celestion 12" A-Type speaker brings a focused, articulate voice that holds up at any volume.

The FAT Switch: Instant Midrange Muscle

The included 1-button footswitch activates the FAT mid boost — a subtle but powerful shift that thickens your tone for leads, adds warmth to clean passages, and gives you a second voice without touching the amp. It’s the kind of feature that sounds simple until you try it, and then you can’t play without it.

Specifications

• 15-watt all-tube combo amplifier
• Celestion 12" A-Type speaker
• Modified preamp circuit for increased fullness
• Spring reverb modified for improved smoothness
• 1-button footswitch for FAT mid boost included
• Finish: Black
• Vendor: Fender