User manual BEHRINGER EUROLIVE PROFESSIONAL

[. . . ] PROFESSIONAL SERIES Users manual Version 1. 0 March 2005 B1220 PRO B1520 PRO B1800X PRO EUROLIVE ENGLISH EUROLIVE PROFESSIONAL SERIES IMPORTANT SAFETY INSTRUCTIONS 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. A surface that easily vibrates is not sufficiently safe for your speakers, therefore: as a general rule, only place your speakers onto even, firm ground surfaces. [. . . ] In such cases, it is best to move the speakers away from the record player and banish them from the stage, so that they are located on firm ground. Another option is to use raised stands, which prevent the speakers from having a direct contact with the ground. 3. 2 Looping through the subwoofer signal (B1800X PRO) The B1800X PRO subwoofer from the EUROLIVE PROFESSIONAL SERIES features two speaker connectors. In BI-AMPING mode, the PINS 2-/2+ of the input are connected directly with the speaker. PINS 1-/1+ of the input are connected to the PINS 1-/1+ of the output and the signal can be simply looped through. To this end, please adhere to the specifications given in chapter 4. + Please keep in mind that when you switch the B1800X PRO subwoofer to BI-AMPING mode, the input signal is routed to PINS 2-/2+. In this case, PINS 1-/1+ merely serve to loop the signal through! 3. OPERATING MODES 5 EUROLIVE PROFESSIONAL SERIES 3. 3 PARALLEL Input (B1220 PRO and B1520 PRO) The EUROLIVE B1220 PRO and B1520 PRO loudspeakers feature two speaker inputs laid out in parallel. 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. 5. 3 Fuses We do not recommend the use of fuses with audio applications. Damage to loudspeakers can be the result of high peak signals and high output power. However, fuses can only offer protection from one of these two factors, and never from both. Additionally, fuse resistors are sometimes nonlinear, leading to distortion and unpredictable overdriving. 5. 3. 1 Protecting your equipment s s s Always try to find the optimal signal level. Keep in mind the physical limitations of your PA system. Use a limiter to restrict the output signal level. Place the limiter between the mixing console and the power amp. For this purpose, our proven AUTOCOM PRO-XL MDX1600, COMPOSER PRO-XL MDX2600 and MULTICOM PRO-XL MDX4600 compressors offer an outstanding solution. All models can be used as a limiter: the audio signal doesnt overdrive any more, and unpleasant peaks are effectively avoided. Our ULTRADRIVE PRO DCX2496 and SUPER-X CX3400/ CX2310 crossovers are particularly well-suited for protecting your equipment: for each output, they have independent limiters. + ATTENTION: Never connect the output signals of different power amps to both parallel inputs at the same time. This may permanently damage your setup. 4. PIN ASSIGNMENT (B1800X PRO) Tisr 7 'YQSP PINS 1-/1+ PINS 2-/2+ Q6TTDW@ 7D6HQDIB INPUT: Full-range input OUTPUT: high-pass output Signal loop Table 4. 1: Pin assignment + Signal loop Subwoofer input 4. 1 Subwoofer (PASSIVE) s 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) s s s Connect the subwoofer signal to PINS 2-/2+. [. . . ] 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. damages/defects caused by force majeure or any other condition that is beyond the control of BEHRINGER. s 5. 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. [. . . ]