Axe-Fx III Effects, Pedalboard Simple
The Fractal Audio VP4 Virtual Pedalboard puts the legendary effects of the flagship Axe-Fx III under your feet, in a compact floor unit that plays as simply as four real stompboxes. The key difference from the multi-effects crowd is focus: this is not an amp modeler, so there are no amp or cab sims stealing horsepower. Every bit of processing goes into pristine drives, lush reverbs, dimensional delays, modulation, pitch, and EQ. The result is a virtual pedalboard that sounds like a studio rack and feels like the board you already know.
Each of the VP4’s 104 presets behaves like a complete pedalboard, holding four simultaneous effects plus its own noise gate, master EQ, and levels. The factory “Gig Mode” puts presets, scenes, effects, channels, tuner, and tap tempo at your feet, while classic ON/OFF switching toggles each effect like a stompbox. Unity gain, an ultra-low noise floor, and a buffered analog bypass keep your signal clean and quiet from input to output.
How It Fits Your Rig
Run the VP4 in front of a traditional amp as a pristine effects board, or drop it into the loop for clear, articulate delays and reverbs. Its 4CM Mode supports the 4 cable method, splitting effects between the front of the amp and the loop. Already on a modeler? The VP4 excels as a pre- and post-effects companion to any modeling rig. Guitar, bass, keys, and acoustic players all get the same studio-quality processing.
Features & Specs
- Effects: 400+ Axe-Fx III models – 69 drives, 78 reverbs, 16 compressors, 128+ delay types, plus chorus, flanger, phaser, pitch, plex, EQ, wah, and tremolo.
- Presets: 104, each with four blocks, scenes, channels, and per-preset gate/EQ.
- Footswitches: Four, with Gig Mode plus classic ON/OFF.
- Tuner: Large-display tuner plus an always-visible mini-tuner.
- Analog I/O: Mono/stereo 1/4″ ins and outs, unity gain, buffered analog bypass, 4CM Mode.
- Digital I/O: S/PDIF in/out, USB-C audio/MIDI, 3.5mm TRS MIDI in/out.
- Expression: Two ports for expression pedals or switches.
- Editor: Free VP4-Edit for Mac/PC; upgradeable firmware.
- Dimensions: 10.0″ W x 6.31″ D x 2.6″ H. Weight: 3 lbs 7 oz. Power: 9V DC 1.3A.
Frequently Asked Questions
Is the VP4 an amp modeler?
No – it’s effects-only by design, which is exactly what makes its effects so pristine and pairs it perfectly with a real amp or a separate modeler.
Can I use it with the 4 cable method?
Yes. Its 4CM Mode splits effects between the front of your amp and the effects loop.
Will it work with bass, keys, or acoustic?
Absolutely. The VP4’s effects and clean signal path work beautifully with guitar, bass, keyboards, and acoustic instruments alike.
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