AMPLIFIERS OWNER’S MANUAL XA SERIES STEREO POWER AMPLIFIERS
XA SERIES STEREO POWER AMPLIFIER Congratulations on your choice of stereo power amplifiers — you have purchased one of the finest stereo amplifiers on the market today. This unit was developed using the expertise of professional sound engineers and working musicians. You will find that your new NADY AUDIO XA-900/1100 has superior performance and greater flexibility than any other amplifiers in its price range. Please read this manual carefully to get the most out of your new unit.
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.
FRONT & REAR CONNECTIONS 5 4 1 3 2 FRONT PANEL 6 reduce the output level of the preceding component to avoid audible distortion. 1. POWER SWITCH To turn the unit ON or OFF, press the upper or lower portion of this button. Before turning on the amplifier, check all connections and turn down the level controls. A momentary muting is normal when turning the amplifier on or off.
FRONT & REAR CONNECTIONS internally connected, so that you only need to feed a signal into one of the channels. This still allows independent control of each channel. (Note: Do not select this “Parallel” mode when feeding the amplifier 2 separate signals.) (Note: Do not use both unbalanced and balanced cables in the same set-up as that can unbalance the connections resulting in hum.
CONNECTIONS The following instructions describe the most common ways to install your amplifier into a sound system. 1. Turn off the amplifier power switch before making any connections. 2. The XA Series amplifiers maybe operated in one of three modes (stereo, bridged-mono, and parallel mono). Refer to the following wiring diagrams for the speaker connections you wish to make.
CONNECTIONS • Parallel (Mono) Mode To put the amplifier in parallel-mono mode, first turn the amplifier off, then slide the MODE SELECTOR SWITCH (13) to the middle “PARALLEL (MONO)” position and properly connect the input wiring as shown. A signal into any input jack will drive both channels directly. You can patch the input signal on to any other amps using any of the remaining input jacks. (Note: Do not connect a speaker load less than 2 ohms as it can damage your amplifier.
BLOCK DIAGRAM 9
SPECIFICATIONS POWER SPECIFICATIONS XA-900 XA-1100 EIA OUT POWER 2Ω 400 + 400 730 + 730 1HZ, THD MAXIMUM 1% 4Ω 300 + 300 475 + 475 BOTH CHANNELS 8Ω 200 + 200 300 + 300 Bridged 4Ω 675 1100 ELECTRICAL SPECIFICATIONS XA-900 INPUT SENSITIVITY XA-1100 1.15V (+3.4dBU) INPUT IMPENDANCE 1.
SERVICE FOR YOUR NADY AUDIO PRODUCT (U.S.) Should your NADY AUDIO product require service, please contact the Nady Service Department via telephone at (510) 652-2411, or e-mail at service@nady.com. (International) For service, please contact the NADY AUDIO distributor in your country through the dealer from whom you purchased this product. DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF AS IT CAN BE DANGEROUS AND WILL ALSO VOID THE WARRANTY. NADY SYSTEMS, INC.
