User manual BEHRINGER B1520 PRO

[. . . ] PROFESSIONAL SERIES User manual A50-28429-00004 fr es it ru B1220 PRO B1520 PRO B2520 PRO B1800X PRO pl nl fi sv da pt el EUROLIVE EUROLIVE PROFESSIONAL SERIES Important Safety Instructions ! This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual. 1) Read these instructions. 5) Do not use this apparatus near water. 7) Before positioning your speakers, you must always make sure that the surface underneath them is completely firm. [. . . ] You can alternatively connect one of the connectors to the output on your power amp and tap into the signal from the amp once again on the second connector, in order to, for example, feed this signal into an additional loudspeaker. This way, you can create stacks consisting of speakers with different impedance values. + ATTENTION: Never connect the output signals of different power amps to both parallel inputs at the same time. This may permanently damage your setup. 2. 4 Loudspeaker protection by using a low-cut filter Try to prevent damage to your speakers caused by extreme oscillation of the bass membrane due to subsonic noise and extremely deep frequencies. Use an equalizer to cut off those frequencies that fall below your speakers' frequency range, or use a low-cut/ high-pass filter. Most equalizers and sound-improvement systems offer a low-cut function, like the BEHRINGER ULTRAGRAPH DIGITAL DEQ1024, for example. Operating Modes 5 EUROLIVE PROFESSIONAL SERIES 4. Pin Assignment (B1800X PRO) Subwoofer B1800X PRO PINS 1-/1+ PINS 2-/2+ INPUT: Full-range input Signal loop OUTPUT: highpass output Signal loop Subwoofer input Tab. Application Examples 6. 1 Full-range stereo operation In the following example, the main stereo output signal of a mixing console is connected to a stereo power amplifier. A B1220 PRO is connected to each of the amp outputs, and these speakers reproduce the entire frequency range (full range). PASSIVE BI-AMPING 4. 1 Subwoofer (PASSIVE) = Feed the full-range signal to the input PINS 1-/1+. The highpass signal can be tapped into at the output PINS 1-/1+. PINS 2-/2+ serve as a signal loop through. 4. 2 Subwoofer (BI-AMPING) = Connect the subwoofer signal to PINS 2-/2+. = PINS 1-/1+ of the input are connected to PINS 1-/1+ of the output, and can be used to loop the signal through. = In general, when in BI-AMPING mode, PINS 1-/1+ and PINS 2-/2+ are looped through. 5. Additional Considerations 5. 1 Length and diameter of loudspeaker cables Loudspeaker cables whose diameter is too small can limit the power amp performance considerably. The longer the cable, the greater the problem. As a result, musicians often simply "turn up" the amp, which can lead to loudspeaker damage. Therefore, don't use cables longer than 15 m (45 ft. ). For most applications, this will not be necessary. Cable diameter should be at least 2. 5 - 4. 0 mm2. 5. 2 Power amp rating Selecting the right amp can turn out to be rather difficult. Therefore, stick to the following rule of thumb: the power rating of your amp should be roughly twice the speaker load capacity. A speaker rated at 400 Watts continuous performance can easily be powered by an amp rated at 800 Watts output power. An optimal addition to your speaker system would be the BEHRINGER EUROPOWER EP2500 power amp, for example. [. . . ] = connection or operation of the unit in any way that does not comply with the technical or safety regulations applicable in the country where the product is used. = damage/defects caused by force majeure or any other condition that is beyond the control of BEHRINGER. Any repair or opening of the unit carried out by unauthorized personnel (user included) will void the warranty. If an inspection of the product by BEHRINGER shows that the defect in question is not covered by the warranty, the inspection costs are payable by the customer. [. . . ]