Behringer ACX1000 Manual De Usuario

5

                     ULTRACOUSTIC ACX1000

1. INTRODUCTION

Thank you very much for expressing your confidence in

BEHRINGER products by purchasing the ULTRACOUSTIC
ACX1000. With the ULTRACOUSTIC, you have acquired a state-
of-the-art 2-channel amplifier that can be operated easily and
quickly, and enables you to create out-of-the-ordinary sounds
for a variety of applications.

When developing the ACX1000, our top objective was to

reproduce the pure and detail-rich sound of acoustic instruments
and to help you work out the characteristic properties of your
instrument. For this reason the instrument channel includes a
number of controls tailored specifically to meet the requirements
of acoustic instruments. What’s more, your ULTRACOUSTIC has
a second microphone/instrument channel with about the same
control elements plus an enhancer circuit that gives, for example,
vocals increased presence and liveliness. A very special feature
is the ULTRACOUSTIC’s digital multi-effects processor with its
wealth of studio-compatible effects. The tube emulator gives
audio signals in both channels unmistakable tube quality and
adds that much sought-after effect of warmth and transparency.
When working in the studio or on stage, you will find the numerous
connection options on your ACX1000 very helpful. And despite
its extremely flexible design, your ULTRACOUSTIC can be
operated easily and intuitively.

BEHRINGER is an audio engineering company that has been

successfully developing products for studio and live applications
for many years now. Our range of products includes
microphones and a variety of 19" devices (compressors,
enhancers, gates, tube processors, headphone amps, digital
effects devices, DI boxes etc.) as well as various monitoring
and P.A. speakers plus professional live and recording consoles.
The name of BEHRINGER stands for no-compromise quality, fully-
featured products and exemplary service—even years after
purchase—as well as sensationally low prices, which allow
any ambitious music lover to make their musical dreams come
true.

We also set great store by flexibility, which has become a

particularly important factor in the music business over the past
few years. Modern guitarists and musicians need to offer a
broad range of sounds, but should still be able to play in different
kinds of applications at short notice: home recording, studio, live
concerts. For this reason, it has always been our prime concern
to give you a maximum of functions that can still be operated
intuitively and quickly—no matter what kind of style you play.

As technology advances, you’ve got to keep track of latest

technological breakthroughs to avoid falling by the wayside. We
too have continuously improved the ULTRACOUSTIC and included
many of your valuable suggestions. We have spared neither
expense nor effort to test different types of circuitry and
speakers until the results have given us complete satisfaction.
After all, we really want to give you fully designed and developed
products that meet your expectations in every respect. The
ULTRACOUSTIC shall be a useful tool for years to come, which
is why we’ve equipped the effects modules of our entire guitar
amplifier series with EPROMS that can be updated. In this way,
we can keep working on new algorithms and considering your
ideas and suggestions. The resulting software updates will be
made available for free on the Internet, so as to ensure that your
amp will never be outdated.

We’ve packed our entire experience into this latest-generation

acoustic guitar amp. Many people contributed to this project of
intense development: studio musicians, collectors of vintage
guitar amps, music and guitar lovers alike. All of them helped us
develop an amplifier that gives you the best of all worlds:

V

Sophisticated analog technology with a “feel factor” only
analog technology can provide.

V

Latest DSP technology to give you a broad range of modern
studio-compatible effect sounds.

V

Rugged and solid construction which even withstands the
roughest handling.

V

Intuitive operation, so that you can focus your mind on
what is most important to you: your music!



The philosophy behind BEHRINGER products guarantees a

no-compromise circuit design and employs the best choice of
components. The operational amplifiers used in the
ULTRACOUSTIC are exceptional: they boast extreme linearity
and very low distortion characteristics. To complement this
design, the choice of components include low-tolerance resistors
and capacitors, high-quality potentiometers and several other
stringently selected elements.

The ULTRACOUSTIC uses SMD technology (Surface Mounted

Device). These subminiature components adapted from
aerospace technology allow for an extreme packing density to
further improve the overall reliability.

The super-robust steel enclosure of your ULTRACOUSTIC,

with its generously proportioned high-capacity power supply
and temperature-controlled active fan, makes sure that your
ACX1000 keeps on working even when the going gets tough.
The cabinet is made of high-grade, non-polluting E1-MDF boards,
which are grooved, multi-glued and free of formaldehyde.

A special FET circuit in your ULTRACOUSTIC emulates the

positive characteristics of a tube exciter, producing additional
harmonics and a subtle compression effect which gives your
guitar sounds the power to make themselves heard and adds
sustain and definition. Acoustic guitars, in particular, with their
wide dynamic range, need to produce a homogeneous sound
image in all registers. The FET circuit makes sure that even the
high registers have sufficient sustain and won’t get drowned.
While the WARMTH control allows you to add the tube sound
effect as desired.

By using solid-state components we succeeded in eliminating

tube-specific interference noise to a great extent; the actual
tube effect is thus achieved without additional noise or hum.