Behringer ACX900 Product Information

Product Information Document

Guitar Combo Ampli ers

ULTRACOUSTIC
ACX900

90-Watt 2-Channel Stereo Acoustic
Instrument Ampli er with Dual FX and
FBQ Feedback Detection

Powerful 90-Watt, 2-channel stereo

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ampli er for acoustic instruments
and vocals

2 original 8" BUGERA dual-cone

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speakers for ultimate
sound reproduction

2 integrated digital FX processors

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each with 16 awesome e ects
programs including reverb,
modulation, delay, and various
e ects combinations

Revolutionary FBQ Feedback

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Detection system instantly reveals
critical frequencies

2 dedicated instrument and

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microphone channels with separate
Gain and FX controls

Individual 7-band graphic EQ

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on each channel for awesome
sound shaping

These days, going “unplugged” often

still means plugging into something.

Make the sweet sounds of your

acoustic guitar and voice big enough

to cut through the clink of co ee

cups and casual chit-chat, with the

ULTRACOUSTIC ACX900. With 90 Watts

surging through 2 amazing 8" BUGERA

dual-cone speakers, integrated FX and

our revolutionary FBQ technology,

this amp is the singer/songwriter’s

best friend.

Dedicated Tuner switch per channel

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for use with external tuner such as
BEHRINGER TU100, BTR2000, etc.

Switchable Phase correction on

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Channel 1 for feedback prevention

Instrument and mic FX Inserts

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for external e ects devices
(stomp boxes, rack e ects, etc.)

Sweet Stereo Operation

The ACX900 features a 90-Watt stereo ampli er
with two dedicated input channels: one with a
single ¼ " input jack for your instrument; and a
second with a ¼ " input and XLR input – making
it the ideal amp for a one-person show with an
acoustic guitar and vocals.

Product Information Document

Guitar Combo Ampli ers

ULTRACOUSTIC
ACX900

90-Watt 2-Channel Stereo Acoustic
Instrument Ampli er with Dual FX and
FBQ Feedback Detection

CD input allows you to play along to

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your favorite music

Balanced stereo XLR Line Out

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with Ground Lift switch for direct
connection to your mixing console

Dual footswitch FS112 for FX 1 & 2

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bypass included

High-quality components and

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exceptionally rugged construction
ensure long life

3-Year Warranty Program*

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Conceived and designed by

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BEHRINGER Germany

Custom-Engineered
Transducers

We never cut corners on our guitar speakers,
and we never just pull what we have o the
shelf. Our 8" BUGERA dual-cone speakers were
designed speci cally for the ULTRACOUSTIC
Series ampli ers – it’s what sets us apart from the
competition. When you buy an ULTRACOUSTIC
ACX900 ampli er, you can rest assured that
the speakers inside have been engineered to
perform  awlessly with every other element for
truly professional results.

World-Class FX & More

The ACX900 features a 24-Bit FX processor per
channel with 16 incredible presets including
world-class reverb, modulation, delay and a
variety of e ects combinations. We also include
our F112 footswitch for remote activating and
deactivating the e ects processor on either
channel. The instrument channel’s Phase
switch makes it easy to eliminate the feedback
commonly associated with acoustic guitar
pickups, and each channel also has a Tuner
switch that silences the speaker, allowing you
to access a tuner connected to the handy rear
panel jack.

*Warrant y details can be fo und at music-group.c om.

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Product Information Document

Guitar Combo Ampli ers

ULTRACOUSTIC
ACX900

90-Watt 2-Channel Stereo Acoustic
Instrument Ampli er with Dual FX and
FBQ Feedback Detection

Onboard 7-Band FBQ Equalizer

For more than 20 years, BEHRINGER has designed and manufactured some of the most successful
FBQ Feedback Elimination processors. Now you can own and enjoy the bene ts of this technology,
as we have integrated the revolutionary FBQ Feedback Detection System in this product, so your sound
system is completely feedback-free, allowing you to focus on your performance. Utilizing an ultra-fast
feedback detection system, this ingenious circuitry helps you recognize and tame feedback frequencies
immediately. When feedback is sensed in a speci c frequency range, the LED on the associated EQ fader
illuminates, showing you at a glance which fader to lower to overcome the feedback. That simple!

Each channel of the ACX900 features its own 7-band EQ equipped with our amazing FBQ Feedback
Detection System for the ultimate in feedback elimination.

The Ins and Outs

On the back panel, you’ll  nd a stereo RCA Input for connecting a CD or mp3 player. If you’re just getting
started as a guitarist, this is a great way to play along with your favorite tunes or backing tracks – or for
providing pre-recorded music during your breaks. Two XLR Line Out jacks send your sound directly to a
mixing board, and you can connect an external e ects processor via the ¼ " Send and Return jacks for the
Instrument and/or Mic channels.

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