Lab.gruppen LAB 1000 User Manual Download Page 1

USER MANUAL HEADLINES 
 

 
 
 
 
 
 
 
Unpacking 2

 

 
Warnings 2

 

 
User responsibility  2

 

1. 

Speaker damage

 

2. 

Speaker output hazard.

 

3. 

Radio interference

 

Introduction  

1. Front 

panel 

2. Rear 

panel 

 

Installation  

1. Mounting 
2. Cooling 
3. Operating 

voltage 

4. Grounding 
5. Power 

consumption 

6. Input 

connections 

7. Connecting 

speakers 

 

Operation modes 

1. Stereo 
2. Tandem 

mono 

3. Bridged 

mono 

4. Stereo 

reverse 

 
Operation  

1. Operation 

precautions 

2. Input 

attenuators 

3. Gain 

switch 

4. Indicators 
 

Protections  

1. 

Clip-limiter

 

2. Thermal 

protection 

3. VHF 

protection 

4.  Short circuit protection 
5. D.C. 

protection 

 
 
 
 

 
 
 
 

 

LAB 1000 

USER  MANUAL 

 
 
Design 

features 

  9 

• 

Cooling 

• 

Safety approvals

 

• 

EMC approvals

 

 
Specifications 

   9 

• 

EMC-declaration

 

 
Appendix A 

               10 

• 

Mains voltage selection

 

 
Maintenance 

                10 

 
Troubleshooting 

                10

 

 
Warranty and disclaimers   

11 

• 

General 

• 

International

 

 

Technical assistance and services  11 

• 

International 

• 

Factory services

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Unpacking

 

 

 

1

Summary of Contents for LAB 1000

Page 1: ...o 3 Bridged mono 4 Stereo reverse Operation 7 1 Operation precautions 2 Input attenuators 3 Gain switch 4 Indicators Protections 8 1 Clip limiter 2 Thermal protection 3 VHF protection 4 Short circuit...

Page 2: ...1 Speaker damage Your amplifier is very powerful and can be potentially dangerous to both loudspeakers and humans alike Many loudspeakers can be easily damaged or destroyed by overpowering especially...

Page 3: ...above its maximum operating temperature 90o C The indicator first comes on as a warning to either turn down the input level or check the cooling arrangements after which point the amplifier will mute...

Page 4: ...an adequate air supply in front of the amplifier and that the rear of the amplifier has sufficient space to allows the exhaust to escape If the amplifier is rack mounted do not use covers or doors on...

Page 5: ...well below the rating Table 1 MAX OUTPUT POWER MAINS INPUT POWER Power Full Power 1 3 Power 1 8 Power Idle sine wave note 1 note 2 LAB 1000 8 ohms 2X 380 1500 1000 500 270 4 ohms 2X 600 2400 1600 800...

Page 6: ...ound or to some other output or input terminal see warning on page 2 For normal two channel operation connect each speaker load across the outputs positive and ground terminals Pay attention to speake...

Page 7: ...ite polarity the energy storage in the power supply is more efficient This means that the amplifier can deliver up to 10 more power than in tandem mono mode This is significant for signals below 100 H...

Page 8: ...As a by product when the amplifier comes out of a protect condition the output level has a slow rise time the effect is like turning the gain up slowly Thermal protection When the amplifier is driven...

Page 9: ...to handle three different types of interference Electrostatic discharges up to 8 kV hitting the chassis or cables Transients and bursts up to 1 kV conducted through the cables to the unit Electromagn...

Page 10: ...be necessary for your supplier to clean the inside of the amplifier These conditions usually occur after prolonged use in environments using cracked oil smoke machines If you are using your amplifier...

Page 11: ...3 LAB GRUPPEN shall not be responsible for any incidental or consequential damages with respect to the products warranted LAB GRUPPEN reserve the right to make changes or improvements in design or ma...

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