ULTRACOUSTIC ACX450/ACX900/ACX1800

FOREWORD

Dear Customer,

Welcome to the team of BEHRINGER users, and thank you very much for expressing your confidence in us by purchasing the BEHRINGER ULTRACOUSTIC.

Writing this foreword for you gives me great pleasure, because it represents the culmination 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 they’ve 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 you’ve 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: it’s you, our customers! Many satisfied customers mean large sales volumes enabling us to get better purchasing terms for components, etc. Isn’t 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, it’s been worth the effort!

Thank you very much,

Uli Behringer

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

3