Nilfisk ALTO BK 2.0 - Manuals

Page 2 - SAFETY RELATED SYMBOLS; C A U T I O N; WARNING

1 SAFETY RELATED SYMBOLS C A U T I O N R I S K O F E L E C T R I C S H O C K D O N O T O P E N Protective Grounding Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus. Never cut off the internal or external protective grounding wire or disconn...

Page 3 - PREFACE

2 PREFACE Dear Customer: For our LTO AUDIO TEAM, music and sound are more then a job...are first of all passion and let us say...our obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field. The LTO lin...

Page 4 - TABLE OF CONTENTS

3 TABLE OF CONTENTS 1. INTRODUCTION........................................................................................................................................4 2.1 Some technical stuff 2. THE CONCEPT BEHIND....................................................................................

Page 5 - Some technical stuff

1. INTRODUCTION You are now the owner of an LTO BK 2.0 Compressor/Limiter/Gate. The BK 2.0 is a very powerful dynamic processor. We have included in it several innovative circuit designs that make the BK 2.0 a very versatile processor: smart and fast recognition of the program, adjustable Expander/G...

Page 6 - Chart.1: The dynamic range capabilities of various devices

5 2.1.2 Introducing Audio Dynamics The human ear can detect the noise generating by falling leaves as well as the roar generated by the taking off space shuttle. Unfortunately no analog, nor digital device can reproduce such wide spectrum. Please look at Chart. 1 and you will see the difference if d...

Page 8 - This LED illuminates when expansion occurs.

7 2.Close LED This LED illuminates when expansion occurs. 4 5 6 8 7 9 3

Page 9 - printed next to these

8 11. PROCESS control This control renews any high frequencies lost through the compression process for natural sounding dynamics control, whichcan be varied from off to 6. Please note that the enhancer control is only used when compression is taking place. 3.4 The Back Panel Pic.5: The Back Panel L...

Page 10 - Chart.4: SRC Curve characteristics of the Adaptive Expander; Compressor Section

9 4. READY TO ROLL? 4.1 Expander/Gate Section Chart.3: Function of an expander As we told you previously in this Manual the downward expander will reduce automatically the level of the audio signal when such signal is below a set threshold. So the expander is the opposite of the compressor/limiter. ...

Page 11 - Chart.5: SKC characteristic of the compressor section

1 0 4.2.2 Ratio control This control sets the change of input level to output level but only for the signals that exceed the threshold. The scale of the ratio control on the front panel (calibrated in dB) indicates how much input level is required to increase the output level by 1 dB. If you have a ...

Page 13 - a. Wiring Configuration; For XLR connector; Unbalanced input; b. In Line Connection; Please see following drawing for details.

1 2 a. Wiring Configuration Both types of connectors available on BK 2.0 can be wired in balanced and unbalanced modes. Please see following drawing for details: For 1/4" TRS jack For XLR connector 1/4"TRS jack Unbalanced input XLR Unbalanced input XLR Balanced input 1 / 4 " T R S j a c ...

Page 15 - TECHNICAL SPECIFICATIONS

1 4 AUDIO INPUT AUDIO OUTPUT COMPRESSOR SECTION GATE SECTION DYNAMIC ENHANCER SECTION FUNCTION SWITCHES INDICATORS POWER SUPPLY DIMENSIONS WEIGHT 6. TECHNICAL SPECIFICATIONS Active balanced XLR and 1/4"JACK60k ohm balanced+21 dBu balanced and unbalanced +21 dBu XLR and 1/4" JACK< 40k ohm ...

Page 16 - C h a r t . 8 : B l o c k d i a g r a m o f t h e B K 2 . 0

1 5 7. BLOCK DIAGRAM C h a r t . 8 : B l o c k d i a g r a m o f t h e B K 2 . 0

Page 17 - LTO

8. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding...