Labgruppen LAB 4000 Instrukcja Użytkownika

1USER MANUAL HEADLINESUnpacking 2Warnings 2User responsibility 21. Speaker damage2. Speaker output hazard.3. Radio interference.Introduction 31. F

10This is a useful feature as there are currently nocommercially available compression drivers that cantake 500 watts of power at 10 kHz!! this circu

112130102030405060708090051015 20 25 30 35 40 45 50Current [AVoltage [V]Figure 14. Current-voltage characteristic of different powersupply topologies.

12LAB 4000 is normally shipped for 230 volt ACoperation only. For export there is a 115/230 voltAC option available. To check if the amplifier isequ

13Warranty and disclaimers• GeneralThis product is manufactured by LAB.GRUPPENand is warranted to be free from defects incomponents and factory wor

2UnpackingCarefully open the shipping carton and check forany noticeable damage. Every LAB.GRUPPENamplifier is tested and inspected before leaving t

3IntroductionThank you for purchasing a LAB.GRUPPEN power amplifier. The amplifier you have chosen is the culminationof many years of Research and De

4The rear panelFigure 2. Rear panel1. Speaker connector This type of speaker connector may be unfamiliar tosome users. A full description is found i

5LAB.GRUPPEN switch mode amplifier useprimary switching, i.e. the mains is rectifieddirectly before the transformer, which means thatthe power

6The power consumption according to the chart above is then 1300 watts.The heat power produced is the difference between the power consumption and out

79. Connecting speakersSpeaker connections are made via the two NeutrikNL4FC Speakon connectors (1).They are the only connectors currently availa

8Operation modes1. Stereo operationFor stereo (dual channel ) operation, leave the Linkand Phase reverse switches in the undepressedposition. In t

92. Powering up -Soft start When you power up the amplifier it takes a couple ofseconds to check its circuits (this is known as the"soft