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ZOOM A1FOUR Acoustic Multi-Effects Processor

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SPECS

A1 FOUR/A1X FOURMaximum 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

INPUTINPUT:

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

OUTPUTOUTPUT :

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.

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)

 

 

MAA-1Input :

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