---

Features

• 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

---

Specifications

A1X FOUR

• Maximum number of simultaneous effects: 5
• User patches: 50
• Sampling frequency: 44.1 kHz
• A/D conversion: 24-bit, 128× oversampling
• D/A conversion: 24-bit, 128× oversampling
• Signal processing: 32-bit
• Display: 128x32 dot matrix LCD

INPUT

• INPUT:
  
  • 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

OUTPUT

• OUTPUT:
  
  • 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: 120dB
• Noise floor (residual noise): -97 dBu
• Power:
  • 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 : Connector: USB2.0 Micro-B
  • Guitar Lab
  • Standard: USB 1.1 Full Speed
  • Supported cable: USB2.0 Micro-B cable
  • Use cables for data transfer.
  • Power can also be supplied through the USB port.
  • When using a cable designed only for power, other USB functions cannot be used.

MAA-1

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

• Output:
  
  • 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

---

WATCH: A1 FOUR & Acoustic Guitar with Aaron Rizzo