5
TUBE ULTRAFEX T1954
TABLE OF CONTENTS

1. INTRODUCTION.....................................................................................................................6

1.1 The Design Concept........................................................................................................................ 6
1.2 Before You begin ............................................................................................................................. 6
1.3 Control Elements............................................................................................................................ 7

2. OPERATION .......................................................................................................................... 10

2.1 Introduction ................................................................................................................................... 10
2.2 The Position of the TUBE ULTRAFEX in the Signal Path............................................................... 10
2.3 Basic Setting................................................................................................................................. 11
2.4 Adjustment of the Bass Processor................................................................................................. 11
2.5 Adjustment of the Noise Reduction System................................................................................... 11
2.6 Adjustment of the Enhancer/Exciter System.................................................................................. 11
2.7 Adjustment of the Tube Stage....................................................................................................... 12
2.8 Adjustment of the Surround Processor.......................................................................................... 12

3. APPLICATIONS .....................................................................................................................12

3.1 Sound Enhancement during Replay..............................................................................................12
3.2 Sound Enhancement during Recording.......................................................................................... 12
3.3 Enhancing the Sound of Subgroups, Monitor and Effect Paths...................................................... 13
3.4 Enhancing the Sound of Tape Duplication......................................................................................13
3.5 Enhancing the Sound of Instruments............................................................................................. 13
3.6 Enhancing the Sound of P.A. Systems..........................................................................................14
3.7 Sound Enhancement in HiFi and Video......................................................................................... 14

4. TECHNICAL BACKGROUND ..............................................................................................14

4.1 The BEHRINGER TUBE ULTRAFEX ... ......................................................................................... 14
4.2 Psycho-acoustic Background ....................................................................................................... 15
4.3 On Psycho-acoustic Devices ........................................................................................................ 15
4.3.1 Frequency correction .......................................................................................................... 16
4.3.2 Phase shifting ..................................................................................................................... 16
4.3.3 Artificial harmonics generation ............................................................................................16
4.4 The Bass Processor of the TUBE ULTRAFEX ............................................................................... 16
4.5 The Surround Processor of the TUBE ULTRAFEX......................................................................... 17
4.6 The Vacuum Tubes of the TUBE ULTRAFEX ................................................................................. 17
4.6.1 UTC circuit.......................................................................................................................... 17
4.6.2 Tube history........................................................................................................................ 18
4.6.3 Design and functional principle of tubes.............................................................................. 18
4.6.4 Properties of tubes.............................................................................................................. 19
4.6.5 The best of both worlds....................................................................................................... 20
4.6.6 Studio applications....................................................................................................... ....... 20

5. INSTALLATION .....................................................................................................................20

5.1 Rack mounting .............................................................................................................................. 21
5.2 Mains Connection ......................................................................................................................... 21
5.3 Audio Connections ........................................................................................................................ 21
5.4 Transformer-balanced Outputs (optional)....................................................................................... 22

6. SPECIFICATIONS.................................................................................................................. 23

7. WARRANTY ...........................................................................................................................24