User manual ELECTRO-VOICE CPS-2

[. . . ] The minimum distance between parts carrying mains voltage and any accessible metal piece (metal enclosure), respectively between the mains poles has to be 3 mm and needs to be minded at all times. The minimum distance between parts carrying mains voltage and any switches or breakers that are not connected to the mains (secondary parts) has to be 6 mm and needs to be minded at all times. [. . . ] The easy readable LED display offers quick optical information on the power amplifiers' momentary operational mode. For each channel individually the display shows whether they are operational, a signal is present at the outputs, when the limiters are activated, and whether one of the protection circuits has been engaged or not. The power outputs CANNEL A, CHANNEL B are carried out as 4-pole-barrier-strip connectors. A ground-lift switch that separates the enclosure from the appliance's ground potential and therefore helps to eliminate ground noise loops and the mono bridged mode switch are also located on the rear panel. In normal operation all CONTRACTOR PRECISION SERIES power amplifiers can be used to drive loads down to 2 ohms; in bridged mode the minimal load is 4 ohms. All amps are equipped with extremely silent running fans providing front-to-rear air circulation, guaranteeing trouble-free operation even in smaller power amplifier rack systems. Studying this owner's manual carefully will provide you with further and more detailed information about the CONTRACTOR PRECISION SERIES power amplifiers. Thus we recommend to keep on reading, assuring you that the Electro Voice CONTRACTOR PRECISION SERIES power amplifiers will provide you with a lot of fun and satisfaction in your work. 9 FRONT PANEL 1. LIMIT This indicator lights when the amplifier enters clipping and the internal limiter is activated. Short-term indication is permissible while a continuous lit LED signals that reducing the overall volume is recommended to avoid the connected loudspeaker systems from being damaged by overload conditions. 2. SIGNAL INDICATOR This indicator lights when an output signal is present. In case of short-circuited speaker cabling or one of the amplifier's protection functions is engaged the indicator is off, showing that there is no signal outputted. 3. [. . . ] The two amplifiers A+B are now used in pushpull operation providing the double output voltage at the BRIDGED-OUT connector. The regular output voltages of the power amplifiers A and B are still present at the individual output connectors CHANNEL A and CHANNEL B but, in respect to the inverted phase, using these signals is not recommendable. [. . . ]