User manual PROEL PLLEDSP

[. . . ] This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its working life. [. . . ] Is not responsible for any "direct damage" or "indirect damage" caused by product defectiveness. Proel has no liability for damages caused in case of lack of maintenance, modifications, improper use or improper installation non-applying safety instructions. ⷠThese amplifiers are adapted in a properly ventilated, standard professional 19" rack. Do not locate sensitive high-gain equipment such as mixer, preamplifiers, recorders or AD/DA conversion units directly above or below these amplifiers. Because these amplifiers have a high power density, it ha a strong magnetic field which can induce hum into unshielded devices that are located nearby. If an equipment rack is used, we recommend locating the amplifier in the bottom of the rack and the mixer, preamplifier or other sensitive equipment at the top. Reserves the right to change these specifications at any time without notice. Declines any liability for damages to objects or persons caused by lacks of maintenance, improper use, installation not performed with safety precautions and at the state of the art. ⷠCheck periodically that the slots for its proper ventilation and heating dissipation are not obstructed by dust, remove the dust using a dry brush or a compressed air gun. ⷠThe HPA450, HPA750 e HPD1000, HPD1500, HPD2000, HPD3000 amplifiers of Proel have been designed with CLASS I construction and must be connected always to a mains socket outlet with a proctetive earth connection (the third grounding prong). ⷠBefore connecting the product to the mains outlet make certain that the mains line voltage matches that shown on the rear of the product, a tolerance of up to ±10% is acceptable. Rotary detented level control: in STEREO and PARALLEL operation it attenuates the level of the signal sent to the channel 2 of the amplifier. The attenuation ranges from "" fully closed (the signal is completely attenuated) to "0" fully open, nominal level (the signal is not attenuated in any way, so is fed to the amplifier channel at the same level at which it arrives on input). Yellow LED illuminates when the channel 1 is in protect mode for one of the following reasons: · The heatsink reaches a temperature above the normal working limit. ⷠThere is a short circuit at the amplifier output wires. Consequently the channel is muted until the reason of fault is removed. NOTE: When the amplifier operates in BRIDGE mode SIGNAL, LIMIT and PROTECT LED indicators illuminate simultaneously, the signal is sent to both amplifiers from channel 1 input only and controlled by channel 1 level control only. Connect the power cord to an electrical outlet complying with the power supply specifications indicated on the apparatus. Be sure your amplifier is turned off before you plug the mains supply cord into an electrical outlet. An adhesive label applied here shows the following information: (1) Model Code (2) Serial Numer of the apparatus (3) Mains supply AC voltage requirements (4) Maximum power supply absorption This is a female combo connector, which accepts a XLR or a JACK plug from almost any type of equipment with a balanced or unbalanced line level outputs. In STEREO mode each amplifier channel runs indipendently driven by respective input. ⷠIn BRIDGE mode both amplifier channels run toghether but with channel 1 in phase and channel 2 out of phase, both channels are driven by Channel 1 input and the output must be taken from "BRIDGE" speakon output. [. . . ] However another sensing circuit can reduce the output power if the heat-sink is over heating. This is a in-audible progressive reduction that can't stop the sound in any case. Only in very extreme conditions the amplifier can be muted due to over-heating. Tip - hot ring - cold sleeve - ground *note: connect both cold and ground to make cable from balanced to unbalanced *nota: connettere insieme cold e ground per cavi da bilanciato a sbilanciato This is a short extraction of the wide assortment of cables available from PROEL, please visit our website at www. [. . . ]