The Zoom A1X FOUR is the first dedicated multi-effects processor designed specifically for a wide range of acoustic instruments, including acoustic guitar, saxophone, trumpet, violin, harmonica, upright bass, and more. Featuring specialized acoustic modeling, custom dynamic effects, and an onboard expression pedal, it delivers studio-quality warmth, feedback management, and creative tone shaping for acoustic performers across all genres.
Tailored Processing for Acoustic & Wind Instruments
The A1X FOUR features over 80 acoustic effects, including specialized dynamics, modulations, delays, and reverbs tuned specifically for acoustic sound profiles. It includes 15 acoustic guitar body modeling presets (such as Dreadnought, Parlor, and Nylon String) to restore natural wood warmth to piezo pickups. For wind and brass players, it offers custom effects designed to tame harsh transients, add smooth pitch modulation, or enrich solo lines with lush harmonies and atmospheric delays.
Included MAA-1 Mic Adapter for Dynamic & Condenser Mics
Unlocking maximum versatility for non-electric instruments, the A1X FOUR comes bundled with the Zoom MAA-1 Mic Adapter. This inline preamp unit connects directly to standard XLR microphones, providing clean gain control, signal conversion, and selectable +48V phantom power for condenser mics. Whether microphoning an acoustic fiddle, miking up a saxophone bell, or plugging in a piezo acoustic pickup, the signal path remains pristine and noise-free.
Real-Time Expression Pedal & Advanced Anti-Feedback
The integrated Expression Pedal gives you real-time physical control over parameter changes. Use it to adjust master volume, sweep pitch-shifting effects, alter delay feedback rates, or tweak wah and filter frequencies live on stage. To keep acoustic performances clean in loud environments, the unit incorporates an advanced Anti-Feedback filter that quickly detects and cuts problem frequencies before they cause ring-outs.
Onboard Looper, Drum Patterns & Guitar Lab App
Practice and composition are seamless with a built-in 30-second Phrase Looper and an internal drum machine featuring 68 acoustic-focused rhythm patterns (including cajon and percussion loops across multiple time signatures). The unit can also connect via Micro-USB to a Mac or PC to access the free Zoom Guitar Lab software, allowing you to easily manage patches, back up sounds, and download additional acoustic effects and artist presets.
Key Technical Specifications
- Simultaneous Processing: Up to 5 custom FX blocks
- User Presets: 50 patches (10 banks of 5 patches)
- A/D Conversion: 24-bit with 128x oversampling
- Expression Features: Integrated foot expression pedal
- Included Accessory: MAA-1 Mic Adapter (XLR input with +48V phantom power switch)
- Analog Input/Output: 1 x 1/4″ Standard Instrument input, 1 x 1/4″ Line/Headphones output, 1 x 3.5mm Stereo Aux input
- Digital Port: Micro-USB for Zoom Guitar Lab management and firmware updates
- Power Configurations: Main unit: 4 x AA batteries, 9V DC Adapter (Zoom AD-16 sold separately), or USB bus power. MAA-1 Adapter: 2 x AA batteries
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