ZOOM 504 Acoustic Multi Effects Processor

This pedal has an "air" effect that recreates ambient sound. Other features include 4 acoustic simulators (normal, jumbo, piezo, classical), 4 reverbs, 4 delays, and 6 modulation effects. In addition, the 504 pedal offers built-in auto-chromatic tuner, and a stereo line out/headphone out with master level control.

Features
The world's only fully programmable compact multi-effect pedal for acoustic guitars. And electric guitars that want to sound like one!

26 Built-in Effects: 4 Acoustic Preamps (Natural, Mild, Rhythm, and Bright).

Switchable Feedback Supressor automatically detects and attenuates feedback problems.

Unique "Air" Effect recreates ambient sound off a miked acoustic guitar.

4 Acoustic Simulators (Normal, Jumbo, Piezo, Classical).

4 Reverbs; 4 Delays; 6 Modulation Effects.

"Limiter;" "Edge;" "Body & Top," and more.

"De-Amp" Effect restores guitar's natural sound when used with amplifier.

Built-in auto-chromatic tuner.

Optional FP01 Expression Pedal lets you change volume effects dynamically.

Stereo line out/headphone out with master level control.
Specs
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Effects: 26 effects

Maximum Simultaneous Effects: 8

Banks and Patches: 6 banks x 4 patches = 24 patches (edit + store capacity)

A/D Conversion: 18-bit, 128-times oversampling

D/A Conversion: 16-bit linear

Sampling Frequency: 31.25kHz

Inputs: High input (standard monaural phone jack), Low input (standard monaural phone jack)

Input Impedance: 470 kilohms

Rated High Input Level: Electric guitars with single-coil pickups, acoustic guitars with magnetic pickups

Rated Low Input Level: Electric guitars with humbucking type active pickups, electric/acoustic guitar

Output: Combined line/headphone output (standard stereo phone jack)

Max. Output Level: +6 dBm

Output Load Impedance: 10 kilohms or more

Control Input: For optional FP01 or FS01

Display: 2-digit, 7-segment LED, tuning indicator, parameter cursor indicator

Power Requirements:
Optional AC adapter 9 VDC, 300mA (Zoom AD-0006)
Battery: 6LR61 9V (alkaline) battery X 1
Battery Life: 4 hr. continuous operation, approximately

Dimensions (W x D x H): 147 x 157 x 49 mm

Weight: 480 g (without batteries)