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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
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
8. Impedance matching (MLS-switch)
Operation modes
1. Stereo
2. Tandem mono
3. Bridged mono
4. Stereo reverse
Operation
1. Operation precautions
2. Powering up -Soft start
3.
Input attenuators
4. Gain switch
5. Indicators
Protections
1.
Clip-limiter
2. Thermal protection
3. VHF protection
4. Short circuit protection
5. AC mains voltage protection
6. D.C. protection
USER MANUAL
3
4
7
8
9
LAB 1600
Design features
•
Cooling
•
Light weight
•
Regulated power supply
•
Safety approvals
•
EMC approvals
Specifications
•
EMC-declaration
Appendix A
•
Mains voltage selection
Maintenance
Troubleshooting
Warranty and disclaimers
•
General
•
International
Technical assistance and services 13
•
International
•
Factory services
10
11
12
12
12
13
1
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Table of Contents
Related Manuals for Lab.gruppen LAB 1600
Summary of Contents for Lab.gruppen LAB 1600
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Page 1: User Manual
4. Gain switch 5. Indicators Protections 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 • Cooling • Light weight • Regulated power supply •... -
Page 2: User Responsibility
Unpacking Carefully open the shipping carton and check for any noticeable damage. Every LAB.GRUPPEN amplifier is tested and inspected before leaving the factory and should arrive in perfect condition. If found to be damaged, notify the shipping company immediately. Only the consignee may institute a claim with the carrier, for damage incurred during shipping. -
Page 3: The Front Panel
Introduction Thank you for purchasing a LAB.GRUPPEN power amplifier. This manual contains important information on operating your amplifier correctly and safely. Please take some time and read this manual to familiarize yourself with the amplifier. The front panel Figure 1. Front panel... - Page 4 Cooling Your amplifier uses forced air cooling system to maintain a low and even operating temperature. All LAB.GRUPPEN amplifier, which ventilated, have front to rear cooling. There are several reasons for this, one is that there's usually...
- Page 5 Under this condition the power will trip the wall breaker within 30 second and the amplifier will operate for less than 2 minutes before MAX OUTPUT POWER LAB 1600 8 ohms 4 ohms 2 ohms Mean power with music as program source...
- Page 6 SLEEVE SHIELD/GROUND Figure 4. TRS phone plug The input impedance is high enough (20 kohms balanced) to allow ”daisy-chaining”, or multiple parallel input connections. To daisy chain, use the TRS jacks provided on each channel. The input circuits also have a high enough headroom, to accept the maximum output level from virtually any low level signal source.
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Page 7: Operation Modes
Do not use the remaining XLR and TRS as input jacks simultaneously for mixing or other purposes. matching, so you can drive the LAB 1600 in 2 ohms without increased heat losses. The chart below shows the possible combinations:... -
Page 8: Operation
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, like in the Bridge mono. Channel B is now phase reversed. To compensate for that, connect pin +1 on channel B Speakon to speaker negative terminal and pin -1 on channel B to speaker positive terminal. -
Page 9: Protection Features
The LAB 1600 is equipped with LAB.GRUPPEN’s Adaptive limiting system (ALS circuit continuously monitors the supply rails, and limits the current going to the output transistors. If the ALS and the yellow LED labeled ”PROTECT”... -
Page 10: Design Features
Fuses on the supply branches of each channel (this is an IEC 65 requirement). Design features Cooling The LAB.GRUPPEN amplifier runs very cool due to a patented heat sink called Intercooler output devices (bi-polar) are mounted directly on a copper heat sink thereby avoiding thermal losses... -
Page 11: Emc-Declaration
LAB.GRUPPEN amplifiers are designed to meet the IEC65, a stringent electrical safety approval from the International Electro-technical Commission. The IEC65 is recognized world-wide with most countries having an equivalent. EMC approvals EMC stands for Electro Magnetic Compatibility. This implies that the equipment should have low emission... -
Page 12: Appendix A Mains Voltage Selection
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. To check if the amplifier is equipped with this option, please follow these steps: 1. -
Page 13: Warranty And Disclaimers
Technical assistance and services • International If your LAB.GRUPPEN product needs repair, contact your LAB.GRUPPEN dealer or distributor, or contact LAB.GRUPPEN by fax, to obtain the location of the nearest authorised service centre. • Factory services In the event that your LAB.GRUPPEN product...
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