User manual PROEL PLLAS055

[. . . ] - To reduce the risk, close supervision is necessary when the product is used near children. - Protect the apparatus from the atmospheric agents and do not use it near water or high humidity places. - This product should be situated away from heat sources as radiators or other devices which produce heat. [. . . ] - Care should be taken so that objects do not fall onto and liquids are not spilled inside the product. Connect the apparatus to a power supply only with the power cord included: - Make sure that the power supply has a ground connection in working order. - The power supply cord should be unplugged from the outlet when left unused for a long period of time. In case of fault or maintenance this product should be serviced only by qualified service personnel when: - There is a flaw either in the connections or in the connecting cables. Maintenance should be carried out by an authorized Proel technician or service center. DESCRIPTION The PSA240 has been designed for industrial use (factories, offices, public buildings) and for any PA application. It features one line input, one line output (pre and post-master fader), allowing input and connection with other systems. The amplifier supplies a 240W power on the constant voltage output (100V) or, alternatively, on the low impedance output (8) and it features thermal protection. 9 24VDC POWER SUPPLY Amplifier can be powered by a 24VDC battery through + and ­ contacts. When a battery is being used, the amplifier's output power reduces in relation to battery state. The ON/OFF switch does not control the amplifier's startup when it is being powered by a battery. It is recommended to use a battery with a current value able to grant amplifier operation for the time required (e. 10 TERMINAL BOARD OUTPUTS It is possible to connect passive loudspeakers for a total impedance of 8 by connecting the "-" loudspeaker terminal to amplifier "COM" terminal and "+" loudspeaker terminal to "8" amplifier terminal; or it is possible to connect constant voltage (100V) line transformer loudspeakers connecting "-" loudspeaker terminal with amplifier "COM" terminal and "+" loudspeaker terminal with amplifier "100V" terminal. Total connected loudspeaker power must remain within the amplifier's maximum output power. It is not recommended to connect low impedance loudspeakers and constant voltage line transformer loudspeakers at the same time. Warning: do not connect power supply cable to line socket before effecting all other connections. [. . . ] It is not recommended to connect low impedance loudspeakers and constant voltage line transformer loudspeakers at the same time. Warning: do not connect power supply cable to line socket before effecting all other connections. A 19" RACK MOUNTING Two 19" rack mounting brackets are supplied with the amplifier. [. . . ]