Behringer AM400 User Manual

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Thank you for showing your confidence in us by purchasing the BEHRINGER ULTRA ACOUSTIC MODELER AM400. This high-qualitymodelling 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 combinesstate-of-the-artDSP technology with sophisticated algorithms to emulate real acoustic environments, you can create everything from standard,large-resonant,brilliant to bright Piezo pickup simulations.


Top view

The LEVEL control adjusts the output level of the effect.

The REVERB control adjusts the amount of reverb effect that can be added to the signal. TheRES(onance) control adjusts the resonance of the simulated acoustic guitar body.

The ATTACK control adjusts the amount of attack and harmonic content of the high frequencies. TheMODE 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 andultra-presentsound, perfect for cutting through in a live environment. TheON/BATT-LEDilluminates when the effect is activated. It also serves as a battery level indicator.

Use the footswitch to activate/deactivate the effect.

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

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 isinactive—bothoptimized for connecting to guitar amplifiers. When both the OUT and the DIR OUT (see ) 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.

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) connectors are used.

Use the DC IN connection 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 (not included), press the hinges with a ballpoint pen and remove the pedal cover. Be careful not to scratch the unit.

The AM400 has no on/off switch. As soon as you insert the jack into the IN connector, the AM400 begins running. When not using the AM400, remove the jack from the IN connector. This extends the life of the battery.

The SERIAL NUMBER is located on the underside.

In rare cases interferences of the normal function may appear by external influence (e.g. electrostatic discharge), as for example sound disturbances or malfunctions. If this occurs, please turn down the volume on subsequent amplifiers and disconnect the input connector briefly to restart the application.



For our current warranty terms, please refer to our website at










Impedance Power supply

Power connector Battery

Power consumption Dimensions (H x W x D) Weight

1/4" TS 500 kΩ

1/4" TS 1 kΩ

1/4" TS 1 kΩ

9 V_, 100 mA, regulated





120 V~, 60 Hz



V~, 50 Hz



V~, 50/60 Hz


100 V~, 50/60 Hz

2 mm DC jack, negative center

9 V type 6LR61

30 mA

approx. 54 mm (2 1/8") x 70 mm (2 3/4") x 123 mm (4 4/5") approx. 0.33 kg (0.73 lbs)

BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may therefore differ from those listed or shown.


Do not use near water, or install near heat sources. Use only authorized attachments/accessories. Do not service product yourself. Contact our qualified servicing personnel for servicing or repairs, especially when power supply cord or plug is damaged.

No utilizar cerca de agua o instalar cerca de fuentes de calor. Utilice sólo accesorios y aditamentos autorizados. No intenté reparar el producto usted mismo. Contacte a nuestro personal técnico cualificado para servicio y reparaciones, especialmente cuando la fuente o el cable de alimentación estén dañados.

Ne pas utiliser ni installer à proximité de liquides ou de sources de chaleur. Utiliser exclusivement les accessoires autorisés. Ne pas réaliser de maintenance soi-mêmesur le produit. Contacter notre personnel technique pour tout service ou réparation,particulièrement si le cordon ou le connecteur du bloc d’alimentation est endommagé.

Betreibe das Gerät nicht in der Nähe von Wasser oder Wärmequellen. Verwende bitte nur autorisiertes Zubehör. Führe bitte keinerlei Reparaturen am Gerät eigenständig durch. Reparaturen sind nur von qualifiziertem Fachpersonal vorzunehmen, insbesondere bei Beschädigungen des Netzkabels oder Netzsteckers.

Не эксплуатируйте прибор вблизи от источников воды и тепла. Применяйте только авторизованные дополнительные устройства. Никогда не ремонтируйте прибор самостоятельно. Ремонт может производить только квалифицированный специализированный персонал, особенно при повреждениях сетевого провода или сетевой вилки.

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Technical specifications and appearance subject to change without notice. The information contained herein is correct at the time of printing. BEHRINGER accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph or statement contained herein. Colours and specification may vary slightly from product. Products are sold through our authorised dealers only. Distributors and dealers are not agents of BEHRINGER and have absolutely no authority to bind BEHRINGER by any express or implied undertaking or representation. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER International GmbH. BEHRINGER, the BEHRINGER logo and JUST LISTEN are trademarks of BEHRINGER. ALL RIGHTS RESERVED. © 2007 BEHRINGER International GmbH, Hanns-Martin-Schleyer-Str.36-38,47877Willich-MünchheideII, Germany. Tel. +49 2154 9206 0, Fax +49 2154 9206 4903



Responsible party name:

MUSIC Group Services USA, Inc.


18912 North Creek Parkway,


Suite 200 Bothell, WA 98011,



Phone/Fax No.:

Phone: +1 425 672 0816


Fax: +1 425 673 7647


complies with the FCC rules as mentioned in the following paragraph:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined

by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

(1)this device may not cause harmful interference, and

(2)this device must accept any interference received, including interference that may cause undesired operation.

Important information:

Changes or modifications to the equipment not expressly approved by MUSIC Group can void the user’s authority to use the equipment.