Fifteen Watts, Two Knobs, Zero Fuss
There's something beautifully honest about an amp that fits in a briefcase and asks almost nothing of you. The Fender Pro Junior IV is exactly that: plug in, set your volume, set your tone, and play. No channel switching, no effects loop to manage, no menu diving. Just you, your guitar, and a 15-watt all-tube signal path that responds to every nuance of your touch.
The version IV brings real improvements under the hood. Fender reworked the volume circuit for a more gradual, linear breakup as you turn things up — meaning you get a usable clean-to-mean range across the whole dial rather than a sudden cliff edge. The overdrive circuit was revoiced too, tightening the bass response and bringing more clarity and definition when the amp is driven hard.
Whether you're tracking at home, playing a small club, or just want a reliable amp that does one thing exceptionally well, the Pro Junior IV earns its reputation. It's also a natural pedal platform — the clean, responsive front end lets your overdrive, delay, and modulation pedals do exactly what they're designed to do.
A Jensen P10R at the Heart of It
The Pro Junior IV is loaded with a single 10-inch Jensen P10R speaker — the same alnico speaker that's been a staple of classic Fender tweed amps for decades. It delivers tight, punchy bass, a full midrange, and plenty of high-end sparkle without getting harsh.
Jensen speakers are known for their articulate, vintage-voiced character, and the P10R specifically complements the amp's tube circuit in a way that feels cohesive rather than just assembled. When you push the volume, the speaker and tubes work together to produce harmonically rich overdrive that retains definition and doesn't get muddy.
The Tube Lineup: EL84 Power, 12AX7 Pre
The Pro Junior IV runs two EL84 power tubes and two 12AX7 preamp tubes. EL84s are known for their chiming, compressed character — tighter and more focused than 6V6s, with a distinctive top-end clarity. Paired with the 12AX7 preamp stage, the circuit is capable of sparkling clean tones at lower volumes and rich, pushed overdrive when you give it more signal or more volume.
The amp uses a solid-state rectifier for a tight, immediate feel. Control-wise, you get one input, a volume knob, and a tone knob — both going to 12 on the classic Fender chickenhead pointer dials.
Classic Tweed Looks That Aren't Just Cosmetic
The lacquered tweed covering on the Pro Junior IV references Fender's late-'50s combos — a period widely considered the golden era of American amp design. The look is completed by vintage-style '50s grille cloth, a mirrored chrome control panel with a red jewel light, and a stitched leather handle. It's the kind of amp that looks right at home on a stage, in a studio, or in the corner of a living room.
The cabinet itself is compact — the briefcase-size form factor is part of what makes this amp so practical. It's light enough to carry to a session without thinking twice, and small enough to fit in a car without rearranging everything else.
Product Features:
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Output Power: 15 watts
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Amp Type: All-tube (tube combo)
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Power Tubes: 2 x EL84
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Preamp Tubes: 2 x 12AX7
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Rectifier: Solid state
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Speaker: 1 x 10" Jensen P10R
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Controls: Volume and Tone (both go to 12), chickenhead-style pointer knobs
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Input: One 1/4" input
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Series: Hot Rod
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Covering: Lacquered tweed with vintage-style '50s grille cloth, chrome control panel, red jewel light
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Handle: Vintage leather strap
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Weight: 20 lbs
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Country of Origin: Mexico
Brand: Fender
Model: Pro Junior IV
SKU: 2231300000
Condition: New
Since 1872, C.A. House Music has been helping musicians across the Ohio Valley find the right gear -- with real advice from a team that actually plays. We're your authorized dealer of all the big names in guitars, keyboards, band instruments, drums, pro audio, and more. With four family-owned and operated locations in Ohio and West Virginia (plus a full online store), you don't have to go far for instruments, lessons, rentals, and repairs. No matter your musical needs, our team of musicians wants to help you Play Music for Life.
