Labgruppen LAB 1600 User Manual

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USER MANUAL HEADLINES
Unpacking 2
Warnings 2
User responsibility 2
1. Speaker damage
2. Speaker output hazard.
3. Radio interference.
Introduction 3
1. Front panel
2. Rear panel
Installation 4
1. Mounting
2. Cooling
3. Operating voltage
4. Grounding
5. Power consumption
6. Input connections
7. Connecting speakers
8. Impedance matching (MLS-switch)
Operation modes 7
1. Stereo
2. Tandem mono
3. Bridged mono
4. Stereo reverse
Operation 8
1. Operation precautions
2. Powering up -Soft start
3. Input attenuators
4. Gain switch
5. Indicators
Protections 9
1. Clip-limiter
2. Thermal protection
3. VHF protection
4. Short circuit protection
5. AC mains voltage protection
6. D.C. protection
LAB 1600
USER MANUAL
Design features 10
Cooling
Light weight
Regulated power supply
Safety approvals
EMC approvals
Specifications 11
EMC-declaration
Appendix A 12
Mains voltage selection
Maintenance 12
Troubleshooting 12
Warranty and disclaimers 13
General
International
Technical assistance and services 13
International
Factory services
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Summary of Contents

Page 1 - USER MANUAL

USER MANUAL HEADLINES Unpacking 2 Warnings 2 User responsibility 2 1. Speaker damage 2. Speaker output hazard. 3. Radio interference. I

Page 2

D.C. protection There are two types of DC protection: Fuses on the supply branches of each channel (this is an IEC 65 requirement). A Crowbar bar prot

Page 3 - The rear panel

LAB.GRUPPEN amplifiers are designed to meet the IEC65, a stringent electrical safety approval from the International Electro-technical Commission. Th

Page 4 - 2. Cooling

Appendix A Mains voltage selection LAB 1600 is normally shipped for 230 volt AC operation only. For export there is a 115/230 volt AC option available

Page 5 - Table 1

Warranty and disclaimers • General This product is manufactured by LAB.GRUPPEN and is warranted to be free from defects in components and factory wor

Page 6 - Figure 9. Speakon connector

Unpacking Carefully open the shipping carton and check for any noticeable damage. Every LAB.GRUPPEN amplifier is tested and inspected before leaving t

Page 7 - Table 2

Introduction Thank you for purchasing a LAB.GRUPPEN power amplifier. This manual contains important information on operating your amplifier correctly

Page 8 - Operation

Please refer to diagram on page 3 1. Speaker connector This type of speaker connector may be unfamiliar to some users. A full description is found

Page 9 - Protection features

There is no ground lift switch or terminal on this amplifier. The signal ground is always floating via a resistor to chassis and the grounding system

Page 10 - Design features

SLEEVE SHIELD/GROUND Figure 4. TRS phone plug The input impedance is high enough (20 kohms balanced) to allow ”daisy-chaining”, or multiple parall

Page 11 - EMC-declaration

8. Impedance matching (MLS-switch) The MLS switch is located on the rear panel with a LED indicator showing then the switch is depressed and in t

Page 12

4. Stereo reverse This mode is similar to the Tandem mono mode. Apart from depressing the Link switch , you also depress the Phase reverse switch, l

Page 13

• When the clip limiter is engaged it flickers briefly. • When the clip limiter is not engaged it lights for a longer period. The remaining yellow

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