USER MANUAL HEADLINES LAB 1000 USER MANUAL Unpacking 2 Warnings 2 User responsibility 2 1. 2. 3. Speaker damage Speaker output hazard. Radio interference. Introduction 1. 2. Installation 1. 2. 3. 4. 5. 6. 7. 4 Mounting Cooling Operating voltage Grounding Power consumption Input connections Connecting speakers Operation modes 1. 2. 3. 4.
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. Be sure to save the carton and packing materials for the carrier's inspection.
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 1. Carry/protection handle Both handles can be used to carry the amplifier, they also act as protection for the front panel.
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 in the operation section. (See page 6). 5. Phase reverse switch for channel B For reversing the input signal phase of channel B to allow bridged operation. (See page 7). 6. 2. Clip limiter switch. Turns the clip limiter on and off. 3. Input jack Alternative to using input XLR or for linking inputs with other amplifiers. (See page 5). 4.
needs the chassis ground for reference, otherwise a current loop is formed via the signal ground. Use the balanced input to avoid hum and interference. this level the music will be in the state of constant clip and is therefore the highest power level one can obtain without completely obliterating the program. At last, the "normal operating power", as measured according to the safety standard IEC 65 and used by a majority of safety agencies.
Figure 8. Balanced line with unbalanced equipment Figure 5. Rear panel connectors Do not use XLR and TRS jacks on the same channel simultaneously for mixing or other purposes. 7. Connecting speakers Speaker connections are made via the two Neutrik NL4FC Speakon connectors (1). They are the only connectors currently available to meet the EC safety requirements. They are wired in the following manner: Pin -1 Speaker ground. Pin +1 Speaker positive. Pin -2 No connection. Pin +2 No connection. Figure 6.
level attenuators are active, allowing you to set different levels for each channel. Never connect either output terminal to ground or in parallel. 3. Bridged mono To bridge the amplifier, depress the Link switch (6) and Phase reverse switch (5). Both channels are then driven by a single signal at either input. You can use any remaining input connectors for linking etc. Do not use the remaining XLR and TRS as input jacks simultaneously for mixing or other purposes.
Figure 12. Front indicators 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. Under normal use these features are inaudible. All protection circuits are independent. Clip limiter The clip limiter is included to prevent dangerous clip signals reaching the speaker and damaging it.
thanks to a horizontal pressure chamber in front of it, (in a conventional tunnel design the end of the heat sink opposite to the fan invariably gets hotter than that directly in front of the fan). When cool air hits the geometric fins of the IntercoolerTM, turbulence is produced thereby enabling efficient cooling. Safety approvals LAB.GRUPPEN amplifiers are designed to meet the IEC65, a stringent electrical safety approval from the International Electro-technical Commission.
Appendix A Mains voltage selection LAB 1000 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. Make sure that the LAB 1000 is unplugged from the mains voltage. 2. Remove the top cover. 3. Locate the terminal block for the mains cable. 5. For 230 volt operation; use a T8 A fuse (slow blow), for 115 volt change to a T15 A fuse (slow blow). 6.
Warranty and disclaimers • General This product is manufactured by LAB.GRUPPEN and is warranted to be free from defects in components and factory workmanship under normal use and service, for a period of one year from the date of original purchase. During the warranty period, LAB.
