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Zoom Official Distributor in Singapore

Zoom A1X Four Acoustic Instrument Multi-Effect Processor

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Availability: In stock

Multi-effect Processor for Acoustic Guitar, Saxophone, Trumpet, Violin, Harmonica, and Acoustic Bass with 80+ Effects, Expression Pedal, Looper, and Drum Machine


  • 2 Years Warranty

Optional Power Adaptor AD-16E Sold Separately


Legendary Zoom Effects

For Acoustic Guitar, Saxophone, Trumpet, Violin, Harmonica, Acoustic Bass, and More

With specially engineered effects, built-in looper and drum machine, the A1/A1X FOUR is the first Multi-Effects Processor designed for a variety of acoustic string and wind instruments.

Extraordinary Effects

The A1/A1X FOUR is preloaded with over 80 effects, including more than 35 new groundbreaking effects designed and engineered for acoustic instruments.

X is for Additional Xpression

The A1X FOUR comes with 8 additional pedal-controlled effects to adjust volume, pitch, reverb, delay, and wah.

Choose Your Instrument

Unlock the Potential of Your Acoustic Guitar

Add a multitude of warm and rich tones to your guitar. From live “unplugged” performance sounds to the finger-playing style of country and blues, there’s so much to choose from. Gorgeous effects and acoustic guitar modeling will take your instrument to places it’s never been before.

Give Your Sax an Entirely New Soundscape

Perform that gritty, rock-and-roll sax growl. Or use the lush custom-chorus effect to emulate the sound of jazz fusion. The A1/A1X Four gives sax players a soundscape of possibilities. The all-new “SaxChorus” effect delivers a more natural double-track and thick tone response by softening the modulated sensation typical of a chorus designed for the electric guitar. With ready-made settings for EQ and Compressors your sax will preserve its acousticly warm sound, even when amplified through mics.

Take Your Trumpet Back to the Future

From the bright sound of electric jazz to our signature Auto Wah sound effect, the A1/A1X gives you inspiration for any style you play. With the “Tp MD70” preset patch the Pedal Wah sound is tuned, resonates and adapts to the low frequency range and curve of the Trumpet.

Turn Your Violin Into an Orchestra

From the rich, full sound of a string symphony to the raw, distorted explosion of metal, the A1/A1X FOUR have effects for every genre.

More Body for Your Harmonica’s Soul

Play punchy, mid-range sounds of a blues harp, or experiment with your own new sounds. Breathing new life into your harmonica has never been so much fun.

The A1/A1X even provides you with a truly effective simulation of the Bullet Mic, also known by harmonica players as the Green Bullet. Select the preset patch “Hm Juke” and now hear the legendary amplified, warm tone of the Green Bullet come to life, even when using any standard vocal microphone.

Take Your Upright Bass to New Heights

With focused highs and rich lows, the A1/A1X Four gives you control and flexibility from classical to rockabilly and all styles in between. Add octaves, select your piezo effect or create your own unique signature sound.


  • A1 FOUR offers over 80 built-in effects / A1X FOUR offers over 90 built-in effects
  • Dedicated effects for acoustic guitar, saxophone, trumpet, violin, and harmonica
  • Up to 5 effects can be used simultaneously, chained together in any order
  • 50 memory locations for storing user-created patches
  • Looper for recording up to 30 seconds / 64 beats of CD-quality audio with seamless start and end times
  • ZOOM Guitar Lab software for creating, editing and managing effects and patches
  • 68 built-in rhythm patterns tailored for unplugged styles of music can be used in combination with the Looper
  • Onboard chromatic tuner supports all standard guitar tunings, including open and drop tunings
  • Output jack for connection to amp or headphones
  • A1 FOUR and A1X FOUR runs on 4 AA batteries, with alkaline battery life of 18 hours; MAA-1 Requires 2 AA batteries
  • USB port for firmware updates, power and connection to ZOOM Guitar Lab


  • Maximum number of simultaneous effects :


    User patches:


    Sampling frequency :

    44.1 kHz

    A/D conversion:

    24-bit, 128× oversampling

    D/A conversion :

    24-bit, 128× oversampling

    Signal processing :


    Display :

    128x32 dot matrix LCD


    Standard mono phone jack
    Rated input level: -20 dBu
    Input impedance (line): 470 kΩ

    AUX IN:

    Stereo mini jack
    Rated input level: -10 dBu
    Input impedance (line): 1kΩ


    Standard stereo phone jack (combined line/headphone)
    Maximum output level: Line +2 dBu (10 kΩ or more output impedance)
    Headphones 17 mW + 17 mW (32Ω load)

    Input S/N:


    Noise floor (residual noise):

    -97 dBu


    AC adapter: 9V DC 500mA center negative (ZOOM AD-16)
    4 AA batteries (about 18 hours continuous operation time when using alkaline batteries with the LCD backlight off)


    USB MIDI, USB Micro-B
    Power can also be supplied through the USB port.
    When using a cable designed only for power, other USB functions cannot be used

    External dimensions:

    A1 FOUR
    Height: 156 mm (D) × 130 mm (W) × 42 mm (H)
    Weight:  340 g (excluding batteries)

    A1X FOUR  
    Height:  156 mm (D) × 216 mm (W) × 52 mm (H)
    Weight:  610 g (excluding batteries)


    INPUT XLR balanced input (2: hot)
    Input gain: +3 – +30 dB
    Input impedance: 10 kΩ
    Maximum input level: +4 dBu
    +48V phantom power


    Standard mono phone jack
    Nominal output level: −20 dBu
    Maximum output level: +7 dBu
    Output impedance: 1 kΩ

    Power :

    2 AA batteries

    Continuous operation time (when phantom current is 3 mA)
    About 15 hours (using alkaline batteries)
    About 15 hours (using nickel metal hydride batteries)

    External dimensions:

    Height:  177 mm (D) × 23 mm (W) × 25 mm (H)
    Weight : 70 g (excluding batteries)
                     0 dBu = 0.775 V

    * Specifications and appearance are subject to change without notice for improvement.
  • * All product names and company names are the trademarks or registered trademarks of their respective owners.

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