User manual NADY XA-300

[. . . ] 7 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Serial # ___________________ SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Date of Purchase ____________________________________ Dealer's Name ______________________________________ City _______________________________________________ State _____________________ Zip _____________________ Model # ____________________________________________ 3 WARNING An equilateral triangle enclosing a lightening flash/arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure which may be of sufficient magnitude to constitute a risk of electric shock. ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR An equilateral triangle enclosing an exclamation point is intended to alert the user to the presence of important operating and service instructions in the literature enclosed with this unit. IMPORTANT SAFETY INSTRUCTIONS When using this electronic device, basic precautions should always be taken, including the following: 1. Read all instructions before using the product. [. . . ] The actual voltage gain of the amplifier is shown in dB. Turn these controls counterclockwise if the peak LEDs illuminate steadily (indicating too strong an input signal). 10 BACK PANEL 13 7 11 12 9 8 7. POWER CONNECTOR The cord connector is used to connect the AC power source to your power amplifier. (CAUTION: DO NOT REMOVE THE CENTER GROUNDING PIN. ) 8. FUSE If this fuse blows continuously, shut off the unit and have it 5 serviced by qualified service technician. 115V AC ~6A 250V FB; 230V AC ~4A 250V FB 9. AC VOLTAGE SELECTOR SWITCH Before plugging in the power cord, check to see that the unit is set for the proper voltage for your area: ~115V (60Hz) or ~230V (50Hz). A cover plate is provided to ensure that this switch is not accidently reset or tampered with between uses. FRONT & REAR CONNECTIONS 10. L/R CHANNEL OUTPUT CONNECTORS Connections are as depicted on the rear panel and in the following CONNECTIONS section on page 7 of this manual. BALANCED INPUT CONNECTORS (1/4" TRS & XLR) These 1/4" (6. 3mm) TRS (Tip/Ring/Sleeve) phone jacks and XLR jacks are compatible with balanced inputs and are wired as Tip/ Pin 3, Ring/Pin 2, and Sleeve/Pin 1 = Ground. Normal maximum input level at clipping is . 500V RMS. Since the TRS phone jacks and XLR jacks are wired internally in parallel, you can parallel this unit with another amplifier by using either the LINE 1/4" jack or the XLR jack (depending on which you're using to input your signal) to output the signal to the input jack of the other amplifier. The 1/4" TRS phone jacks can also be used for unbalanced inputs. For TRS phone plugs, simply connect the unused side of the balanced input to ground. For 1/4" TS phone plugs, no change is necessary for compatibility with this input. Balanced input signals are recommended as they are less prone to AC hum. For long cable runs a source of less than 600 ohms output impedance is needed to avoid signal loss. For short cable runs an unbalanced signal input should be suitable. For stereo (two-channel) operation, use the inputs for both CH-A and CH-B; for parallel or bridged mono operation, use only CH-A input. (See MODE SELECTOR SWITCHES below for more explanation. ) 12. MODE SELECTOR SWITCH The XA-300 amplifier offer 3 modes of operation: PARALLEL, STEREO & BRIDGED. Slide the switch to one of the three positions for you application. [. . . ] Parallel/Mono/Bridge selector, AC voltage selector switch CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power; IEC power cord jack; Input:: Active balanced XLR and 1/4" (6. 3mm) TRS Output: "Touch-proof" binding posts POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage selectable: 110V~120V or 220V~240V AC 50/60 HZ FUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115V AC ~ 6A 250V FB; 230V AC ~ 3A 250V FB DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]