5
TUBE ULTRAGAIN T1953
TABLE OF CONTENTS
1. INTRODUCTION.....................................................................................................................6
1.1 The concept.................................................................................................................................... 6
1.2 Before you get started.....................................................................................................................7
1.3 Control elements............................................................................................................................. 7
2. OPERATION..........................................................................................................................10
3. APPLICATIONS .....................................................................................................................11
3.1 The TUBEULTRAGAIN as a microphone preamp........................................................................... 11
3.2 The TUBEULTRAGAIN as a level converter................................................................................... 12
3.3 The TUBEULTRAGAIN as a direct injection box........................................................................... 12
3.4 The TUBEULTRAGAIN as tube interface ...................................................................................... 12
4. TECHNICAL BACKGROUND ..............................................................................................12
4.1 Audio dynamics............................................................................................................................ 13
4.1.1 Noise as a physical phenomenon ....................................................................................... 13
4.1.2 What are audio dynamics?................................................................................................. 14
4.2 The tubes used in the TUBEULTRAGAIN..................................................................................... 15
4.3 Tube history.................................................................................................................................. 15
4.4 Design and functional principle of tubes ........................................................................................ 16
4.5 Properties of tubes........................................................................................................................ 17
4.6 The best of both worlds ................................................................................................................. 18
4.7 UTC circuit.................................................................................................................................... 18
4.8 Studio applications........................................................................................................................ 18
4.9 Phantom power............................................................................................................................. 19
5. INSTALLATION .....................................................................................................................20
5.1 Rack mounting.............................................................................................................................. 20
5.2 Mains connection.......................................................................................................................... 20
5.3 Audio connections........................................................................................................................ 21
5.4 Transformer-balanced output (option) ............................................................................................ 21
6. SPECIFICATIONS ................................................................................................................. 22
7. WARRANTY........................................................................................................................... 23