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ULTRACOUSTIC ACX450/ACX900/ACX1800
TABLE OF CONTENTS
1. INTRODUCTION ......................................................... 4
1.1 Before you get started ................................................... 4
1.1.1 Shipment ............................................................... 4
1.1.2 Initial operation...................................................... 4
1.1.3 Online registration ................................................ 4
2. CONTROL ELEMENTS AND CONNECTIONS .............4
2.1 Front panel...................................................................... 4
2.2 Rear panel ...................................................................... 6
3. APPLICATIONS ..........................................................7
3.1 Connecting options for the ACX450 .............................. 7
3.2 Extended connecting options (ACX900 and ACX1800) 7
4. SOUND PROCESSING ............................................... 8
4.1 FBQ equalizer ................................................................. 8
4.2 Digital effects processor................................................ 8
4.3 Compressor (only in ACX1800) ..................................... 9
5. INSTALLATION ...........................................................9
5.1 Audio connections ......................................................... 9
6. SPECIFICATIONS .....................................................10
7. WARRANTY .............................................................. 11
FOREWORD
Dear Customer,
Welcome to the team of
BEHRINGER users, and
thank you very much for
expressing your confi-
dence in us by pur-
chasing the BEHRINGER
ULTRACOUSTIC.
Writing this foreword
for you gives me great
pleasure, because it
represents the cul-
mination of many months
of hard work delivered
by our engineering
team to achieve a very
ambitious goal: to
present you with an
outstanding acoustic
instrument amplifier that
is at the forefront of what is technically possible and that offers
you a vast variety of sound shaping options. The task of designing
our new ULTRACOUSTICs certainly meant a great deal of
responsibility, which we assumed by focusing on you, the
discerning user and musician. Meeting your expectations also
meant a lot o6f work and night shifts. But it was fun, too.
Developing a product usually brings a lot of people together, and
what a great feeling it is when all who participated in such a
project can be proud of what theyve achieved.
It is our philosophy to share our enjoyment with you, because
you are the most important member of the BEHRINGER team.
With your highly competent suggestions for new products youve
made a significant contribution to shaping our company and making
it successful. In return, we guarantee you uncompromising quality
as well as excellent technical and audio properties at an extremely
reasonable price. All of this will enable you to give free rein to
your creativity without being hampered by budget constraints.
We are often asked how we manage to produce such high-
quality devices at such unbelievably low prices. The answer is
quite simple: its you, our customers! Many satisfied customers
mean large sales volumes enabling us to get better purchasing
terms for components, etc. Isnt it only fair to pass this benefit on
to you? Because we know that your success is our success
too!
I would like to thank all of you who have made the ULTRACOUSTIC
Series possible. You have all made your own personal
contributions, from the developers to the many other employees
at this company, and to you, the BEHRINGER user.
My friends, its been worth the effort!
Thank you very much,
Uli Behringer