Lab.gruppen LAB 2002 User Manual
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Lab.gruppen LAB 2002 User Manual

Lab.gruppen lab 2002: user guide
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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-switches)
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 2002
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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Summary of Contents for Lab.gruppen LAB 2002

  • 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 2002 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. The amplifier you have chosen is the culmination of many years of Research and Development. This amplifier makes amplification more controllable instead of the traditional "Boring black box" you have become accustomed to.

  • Page 4: Installation

    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 First, the peak current draw at full output power. Under this condition the power will trip the wall breaker within 30 second and the amplifier MAX OUTPUT POWER LAB 2002 8 ohms 4 ohms 2 ohms Average power with music as program source...
  • Page 6 There are also TRS jacks for linking etc. They are wired as follows: RING COLD 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.

  • Page 7: Operation Modes

    LAB 2002 in 2 ohms without increased heat losses. Utilising higher MLS positions when connected to lower impedance's see Table 2. As you can see from Table 2 the LAB 2002 can produce in excess of 1400 watts. LAB 2002 LOAD...

  • Page 8: Operation Precautions

    To obtain an output, connect the speaker leads to pin +1 on channel A Speakon to speaker positive terminal and pin +1 on channel B Speakon to speaker negative terminal . Do not connect either of the -1 (negative) pins of the Speakons. Do not connect speakers to channel A or B in the normal manner in bridge mode, as this can cause serious damage.

  • Page 9: Protection Features

    The rest of the green LEDs forms a bar for output levels from -20dB to -5dB. Protection features Each LAB.GRUPPEN amplifier has many advanced protection features, that will protect both the amplifier and the speakers connected to it, should a fault condition arise.
  • Page 10 Efficiency is also assured, and in the case of the LAB 2002 this is especially apparent ; its power supply draws only 4 kW and yet it produces 2 x 1400 W (in a conventional amplifier this would yield only 2 x 650 W- nearly 3 kW are wasted as heat.

  • Page 11: Emc-Declaration

    Safety approvals LAB.GRUPPEN amplifiers are designed to meet the IEC65 (now called EN 60 065), a stringent electrical safety approval from the International Electro- technical Commission. The IEC65 is recognized world-wide with most countries equivalent. EMC approvals EMC stands for Electro Magnetic Compatibility. This...

  • Page 12: Appendix A Mains Voltage Selection

    Appendix A Mains voltage selection LAB 2002 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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