User manual ELECTRO-VOICE Q44Q66

[. . . ] When the provided plug does not fit into your outlet, consult an electrican for replacement of the obsolete outlet. IMPORTANT SERVICE INSTRUCTIONS CAUTION: These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. 1. [. . . ] Using the Input Routing-switches lets you determ ine if the Q-SERIES amplifiers are operated in DUAL (stereo) or PARALLEL (monaural) mode; "mono-bridged" operation is also possible. The dB-scaled level controls are to be found on the rear panel. These potentiometers guarantee precise and reliable operation. The easy readable LED display on the front panel 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 and BRIDGED OUT are carried out as Speakon 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 Q-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 in formation about the Q-SERIES power amplifiers. Thus we recommend to keep on reading, assuring you that the Electro Voice Q-SERIES power amplifiers will provide you with a lot of fun and satisfaction in your work. 3 FRONT PANEL 1. LIMIT This indicator lights when the amplifier enters clipping and the internal limiter is activated. Anyway, if this indicator lights continuously, reducing the overall volume is recommended to avoid that the connected loudspeaker systems are getting damaged from overload. 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. PROTECT If this indicator lights during operation, one of the amp's internal protection functions against thermal overload, short-circuit, occurrence of HF or DC at the output . . . The cause that let the amplifier enter the protection mode ­ e. a short-circuited speaker cable ­ has to be eliminated. [. . . ] Contact Telex customer service at: Telex Communications, Inc West First Street, Blue Earth MN 56013, Phone 800-218-2412 + 2128, Fax 507-526-2295 Incidental and Consequential Damages Excluded: Product repair or replacement and return to the customer are the only remedies provided to the customer. Electro-Voice shall not be liable for any incidental or consequential damages including, without limitation, injury to persons or property or loss of use. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. [. . . ]