Zoom A1X Four Acoustic Multi-Effects Pedal

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.

Specifications:

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    Standard mono phone jack Rated input level: -20 dBuInput impedance (line): 470 kΩ
AUX IN    Stereo mini jack Rated input level: -10 dBuInput impedance (line): 1kΩ
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    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)