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  • FXM007

    Zoom A1 Four Multi Effects Processor

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

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

    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. Add depth and dimension with acoustic emulators and modeling. Refresh your instrument’s natural sound, allowing your live performances to sound just like your studio recordings. Select and hone in on the tone of your favorite guitar make and style. The A1 FOUR make it easier than ever to process the sound of your own Acoustic Guitar.
 With a selection of 15 factory presets (plus13 more available as free download on Guitar Lab), you can select your favorite AG MODEL, D-28 for example, and recover instantly the sound character of that renowned and original body shape.
 IR (Impulse Response) technology is used to capture the sonic fingerprint all guitar shapes and bodies available on the A1 FOUR and via Guitar Lab. Each AG MODEL can be adjusted with 4 parameters (Gain, Bass, Mid, Treble) to control the volume and refine the audio output of your modeled sound. In Patches you can also set the AG Pickup Selector (AG PU SEL) to match your guitar’s pickup type (Piezo or Magnetic) and add a specific EQ modeled on a variety of dedicated processors.

    Popular effects such as Distortion, Chorus and Wah are typically designed to work with the electric guitar. The A1 FOUR provide all-new effects that are engineered to process the unique signals generated by acoustic instruments. For example, with the sax and trumpet, original acoustic sounds are controlled by the musician blowing the horn with more or less intensity. As an example, the Wah effects are uniquely re-voiced in the A1/A1X FOUR by adding a Low Pass Filter (LPF) to best control the processed frequency response of the instrument. This allows musicians to hit the peak frequency points while still blowing naturally into the instrument, without losing any expected sonic response of attack and release.

    Another example is the violin. The bowing attack is key to the expression of the violinist.
 To recreate the electrified sensation of distortion without losing the bowing attack, the DIST effect for Violin shifts the clipping 1 octave higher, boosts the high frequency and reduces the lows. This creates a more balanced saturation that suits the sonic characteristics of the violin.


    • A1 FOUR offers over 80 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 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


    • Type: Acoustic Instrument Multi-FX
    • Analog/Digital: Digital
    • EQ: 3-band EQ, Graphic EQ
    • Effects Types: 80 x Effects, 5 x Simultaneous ; Dynamics, Filters, Overdrives, Amp Models, Cabinet Models, Modulation, Delay, Reverb, SFX
    • Presets: 50 x User Patches, Acoustic Body Modeling, Sax, Trumpet, Violin, Harmonica, 68 x Rhythm Patterns
    • Looper: 30 seconds
    • Inputs: 1 x 1/4 (instrument), 1 x 1/8 (aux in) ; MAA-1: 1 x XLR (mic)
    • Outputs: 1 x 1/4 (line out/headphones)
    • MIDI I/O: USB
    • USB: 1 x Type Micro-B
    • Bypass Switching: Buffered
    • Software: Zoom Guitar Lab Patch Editor (Mac/PC)
    • Power Source: 9V DC power supply (sold separately) / USB powered (some functions limited)
    • Batteries: 4 x AA batteries ; MAA-1: 2 x AA batteries
    • Height: 1.65
    • Width: 5.11
    • Depth: 6.14
    • Weight: 0.75 lbs. (without batteries)