User manual ELECTRO-VOICE 670 DATASHEET
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ELECTRO-VOICE 670 SERVICE DATA (358 ko)
Manual abstract: user guide ELECTRO-VOICE 670DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Use only with the cart, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for a long period of time. [. . . ] The power amplifier receives its power supply via the MAINS IN connector. During installation, always separate the power amplifier from the mains. Connect the power amplifier only to a mains network, which corresponds to the requirements indicated on the type plate. The power drawn from the mains network is converted into output power to feed the connected loudspeaker systems and into heat. The difference between power consumption and dispensed power is called power dissipation (Pd). The amount of heat resulting from power dissipation might remain inside of a rack-shelf and needs to be diverted using appropriate measures. The tables on page 31 allow the determination of power supply and cabling requirements. The tables are meant as auxiliary means for calculating temperatures inside of a rack-shelf system/cabinet and the ventilation efforts necessary. The column Pd lists the leakage power in relation to different operational states. The following conversion factors are meant for easy conversion: 100V = 2. The Mains Switch on the front panel separates the power amp from the mains. The Hi-Pass filter (50 Hz, 18 dB/oct) allows effective attenuation of low frequency audio signals, which could cause saturation problems with connected output transformers. Following table shows possible switch settings and corresponding delay times. The MODE switch on the power amp`s rear panel defines how the audio inputs handle the input signals. In DUAL mode, the two channels of the power amplifier work independent from each other. This mode of operation is being used for all 2-channel applications, like stereo operation. Using the input level controls on the power amp's rear panel allows independently adjusting the channels' amplification. Using the input level controls to independently control the amplification of the two channels is still possible because only the channels' inputs are linked. PARALLEL operation is the mode of choice, whenever the same input signal drives multiple power amp channels of a large system installation. In BRIDGED mode both amp channels work in push-pull operation to provide doubled output voltage. In BRIDGED mode operation, it is not allowable for the load connected to fall below a value of 4 ohms. Make sure to completely read and fully observe power rating specifications of the speaker systems to be used and to check them against the output power capacity of the power amp. [. . . ] Control outputs (GPO's) allow the connection of external components, which, for example, are used to signal specific states to peripheral equipment. Consequently, an amplifier with a RCM-810 module installed corresponds to highest safety requirements. For further details about configuration, control and monitoring of amps with installed RCM-810 modules, please refer to the documentation of the IRIS-Net. 1 ADDRESS Selector Switch The two address selector switches are for setting the network address of the RCM-810. [. . . ]
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