Behringer Ultra Acoustic Modeler AM400 Leaflet

Ultimate Electric-to-Acoustic Guitar Modeling Effects Pedal

Thank you for showing your confidence in us by purchasing the BEHRINGER ULTRA ACOUSTIC MODELER 

AM400. This high-quality modelling effects pedal is designed for all electric guitar players who want to 

add incredibly realistic acoustic guitar sounds to their playing. Thanks to its Real Sound Modeling (RSM) 

technology that combines state-of-the-art DSP technology with sophisticated algorithms to emulate real 

acoustic environments, you can create everything from standard, large-resonant, brilliant to bright Piezo 

pickup simulations.

(1) 

The LEVEL control adjusts the output 

level of the effect.

(2) 

The REVERB control adjusts the 

amount of reverb effect that can be 

added to the signal.

(3) 

The RES(onance) control adjusts the 

resonance of the simulated acoustic 

guitar body.

(4) 

The ATTACK control adjusts the amount 

of attack and harmonic content of the 

high frequencies.

(5) 

The MODE control lets you choose 

between four different acoustic modes: 
STANDARD produces a typical acoustic 

guitar sound.
LARGE delivers a large, 

more resonant acoustic.
PIEZO simulates the distinct brightness of a classic piezo pickup.
BRIGHT gives you a brilliant and ultra-present sound, perfect for cutting 

through in a live environment.

(6) 

The ON/BATT-LED illuminates when the effect is activated. It also serves as a battery level indicator.

(7) 

Use the footswitch to activate/deactivate the effect.

(8) 

Use this 1/4" TS IN connector to plug in the instrument cable.

(9) 

This is the 1/4" TS OUT connector. When you only use this output, it carries the affected 

signal when the effect is active, and the direct signal (without effect) when the effect is 

inactive—both optimized for connecting to guitar amplifiers. When both the OUT and the 

DIR OUT (see (10)) connectors are used, the OUT connector carries the affected signal optimized 

for connecting to a mixer/PA when the effect is active. When the effect is inactive the 

OUT connector is muted.

(10) 

This is the 1/4" TS DIR OUT connector, which is muted when the effect is active. When inactive it 

carries the direct signal (without effect) optimized for connecting to guitar amplifiers. It works the 

same way, when both the DIR OUT and the OUT (see (9)) connectors are used.

Use the DC IN connection at the front of the unit to plug in a 9 V power supply (not included). 
The BATTERY COMPARTMENT is located underneath the pedal cover. To install or replace the 9 V 

battery, press the hinges with a ballpen and remove the pedal cover. Be careful not to scratch the unit.

(1)

(2)

(9)

(10)

(5)

(6)

(8)

(7)

(4)

(3)