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Behringer Ultracoustic ACX900 manual

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Table of contents for the manual

  • Page 1

    Version 1.1 J u n e 2 0 0 6 Users Manual ULTRA COUSTIC ACX450 /ACX900/ACX180 0[...]

  • Page 2

    2 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 IMPORTANT SAFETY PRECAUTIONS This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual. This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosurevoltage th[...]

  • Page 3

    3 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 TABLE OF CONTENTS 1 . INTRODUCTION ......................................................... 4 1.1 Before you get started ................................................... 4 1. 1. 1 Shipment ............................................................... 4 1.1. 2 Initial opera tion ........................[...]

  • Page 4

    4 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 1. INTRODUCTION Thank you for choosing the ULTRACOUSTIC amplifier. You have purchased a modern 2-channel amplifier that guarantees excellent sound quality for various applications yet is easy to operate. The ULTRACOUSTIC comes with a wide range of features such as two integrated, 24-bit multi-effect processo[...]

  • Page 5

    5 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 The MIC jack is the balanced XLR microphone input of the microphone/line channel. The balanced LINE jack (1/4") of the microphone/line channel can be used for line-level signals, e.g. from keyboards, drum computers, etc . The COMPRESSOR controller is used to adjust the intensity of the compression (only[...]

  • Page 6

    6 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 2. CONTROL ELEMENTS AND CONNECTIONS 2.2 Rear panel ACX450 ACX900 ACX1800 Fig. 2.2: Rear panel connectors Use the balanced LINE outputs (XLR connections) to connect your ULTRACOUSTIC to the inputs of a mixing desk (only in ACX1800 and ACX900). With the GND LIFT (ground lift) switch you can disconnect the grou[...]

  • Page 7

    7 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 3. APPLICATIONS 3. APPLICATIONS 3.1 Connecting options for the ACX450 Fig. 3.1: Cabling options of the ACX450 The above cabling is suitable for sessions in the rehearsal room or for practicing at home. Connect your guitar to the instrument input jack of channel 1. If desired, connect another instrument or a [...]

  • Page 8

    8 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 4. SOUND PROCESSING 4. SOUND PROCESSING The ULTRACOUSTIC offers many options for sound processing. The ACX1800 includes, for example, an FBQ equalizer, a multi- effects unit and a compressor. The various processing options are explained in this chapter. 4.1 FBQ equalizer A graphic equalizer with FBQ spectrum[...]

  • Page 9

    9 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 4.3 Compressor (only in ACX1800) The compressor reduces the dynamic range of a signal. Volume peaks are lowered, and low signals are boosted, so that the difference between the loudest and the lowest tone of an instrument or voice is reduced. This results in a more expressive and homogeneous sound, and the s[...]

  • Page 10

    10 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 6. SPECIFICATIONS 6. SPECIFICATIONS INSTRUM ENT IN Input Im pedance MIC I N Input Im pedance LINE IN Input Im pedance INST INSERT R ETURN - Input Im pedance - MIC INSE RT RETURN - Input Im pedance - CD input Input Im pedance LINE OUT - Output Im pedance - Max. output level - INST INSERT SEN D - Output Im pe[...]

  • Page 11

    11 ULTRA COUSTIC ACX450/ACX9 0 0 /ACX1800 7. WARRANTY 7. WARRANTY § 1 OTHER WARRANTY RIGHTS AND NATIONAL LAW 1. This warranty does not exclude or limit the buyers statutory rights provided by national law, in particular, any such rights against the seller that arise from a legally effective purchase contract. 2. The warranty regulations mention[...]

  • Page 12

    F EDER AL C OMMUNICA TIONS C OMMIS SION C OMPL IA NCE INF ORMA TI ON Responsible par t y name: MUSIC G roup Se r vices USA , Inc . Address: 1 891 2 Nor th Cre ek Park way , Suite 2 00 Bot hel l, W A 9801 1, USA Phone/ Fax No.: Phone: + 1 425 672 08 1 6 Fax: + 1 425 6 73 7 647 UL TR AC OUSTIC ACX450 / A CX9 00/ A CX1 80 0 complie s with t he FCC rul[...]