User manual JBSYSTEMS LIGHT D2 V1.1

[. . . ] To avoid condensation to be formed inside, allow the unit to adapt to the surrounding temperatures when bringing it into a warm room after transport. Condense sometimes prevents the unit from working at full performance or may even cause damages. No objects filled with liquids, such as vases, shall be placed on this appliance. If a foreign object enters the unit, immediately disconnect the mains power. [. . . ] Do not use volatile liquids such as benzene or thinner which will damage the unit. In the description of the unit you will find more information on how to connect the amplifier. Basically this is identical to stereo mode but the inputs of both channels are linked so the output will be mono. In this case you only need to use the input of the left channel to drive both output channels. BRIDGE MODE: Both channels are linked in "bridge mode" to obtain a mono output with much higher power. PROTECT LEDS: The protection LED is on when the speakers are disconnected from the amplifier. This occurs in the following situations: During the first seconds after switching on the amplifier. While switching the amplifier off, the "protect led" turns on for a short time. HP FILTER LED: Indicates that the high pass filter (HPF) is switched on for this channel (left and right channels have their own HPF LED) Please refer to numbers 18 and 20 to learn more about this filter. LP FILTER LED: Indicates that the low pass filter (LPF) is switched on for this channel (left and right channels have their own LPF LED) Please refer to numbers 18 and 20 to learn more about this filter. A few seconds after switching on the amplifier it is ready for operation. VENTILLATION HOLES: during its operation the amplifier produces heat that needs to be dissipated. The fans inside the amplifier must be able to evacuate the heat in the most effective way. Therefore is it very important not to cover any of the ventilation openings as this may result in overheating. You can use these controls to set the maximum sound level of your setup: Turn both controls on the amplifier to the left. Put on some music on and make sure the VU meters on your mixer are at 0dB. (from time to time the red zone is lit) Set the Master output from your mixer to maximum. Open the Gain controls from the amplifier until the maximum desired sound level is reached. (in some cases the DJ is not ) Note: In Bridge mode, only the gain control of the left channel is used to adjust the input sensitivity. SIGNAL LEDS: these LEDs indicate that a music signal is present at the inputs. CLIP LEDS: Turn on just before the maximum, distortion free, output level of the amplifier. The clip LEDs may turn on shortly from time to time but they may certainly not turn on for longer periods. [. . . ] Connect the audio signal only to the channel1 input (11) Put the mode switch (13) to mono Connect the top cabinet to the output (15) of channel1 Connect the subwoofer to the output (15) of channel2 Put the filter switch of channel1 (18) to "high pass filter" Adjust the crossover frequency of channel1 (17) Put the filter switch of channel2 (20) to "low pass filter" Adjust the crossover frequency of channel2 (19) Close the gain controls (2) Switch the amplifier on (9) Open the gain controls (2) to the desired levels so you have a nice balance between the top cabinet and the subwoofer. Power stereo 8 (1kHz, THD+N<0, 1%) Power stereo 4 (1kHz, THD+N<0, 1%) Power bridge 8 (1kHz, THD+N<0, 1%) Freq. Every information is subject to change without prior notice You can download the latest version of this user manual on our website: www. Elk kanaal is uitgerust met een 24dB/octave cross-over: instelbaar cross-over punt (90~250Hz) en 3 werkingsmodi: HPF (high pass filter) + LPF (low pass filter) + OFF (geen filter) Twee versterker-modi: stereo en bridge Peak limiters kunnen aan/uit gezet worden Soft start schakeling Zeer doeltreffende koeling DC stroombeveiliging Beveiliging tegen hoge temperaturen Beveiliging tegen overbelasting en kortsluiting Symmetrische ingangen via XLR stekkers XLR-uitgangen: verschillende versterkers kunnen achter elkaar worden aangesloten ® 3 Speakon uitgangen: linker + rechterkanaal + bridge Er zijn 3 modellen met verschillende vermogens beschikbaar. [. . . ]