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Class A bias current of our other amplifiers. The Pass Labratories™ XA200 will deliver 200 watts rms into 8 ohms of impedance. This is the amplifiers class A limit, driving the XA200 harder or reducing the impedance of the load will not convey any additional power.
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At idle most of that en- ergy is dissipated across the heat sinks, so the heat generated by each XA200 is equivalent to a small hair dryer. To dissipate this heat the product should have about 6 inches clearance to the top and sides for adequate air circulation.
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15 amp IEC receptacle at the rear of the amplifier chassis. Two XA200’s may be run on a single 15-amp circuit. This amplifier is equipped for operation with an earth ground provided by the users AC outlet. Never defeat this ground connection. The signal ground...
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Make sure you are in standby mode to protect your speakers from transients. The prudent installer will unplug the XA200’s power cord from the mains while attaching speaker cables. To avoid the possibility of short circuits always connect speaker cables to the speakers prior to connecting to the amplifier.
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Depending on the resolution of the rest of your audio chain, you may or may not notice any break in of the XA200 beyond the first 50 hours of operation. You will likely notice the difference in sonic char- acter between cold and normal operating temperature, so we recom- mend letting these amplifiers warm up before any serious listening.
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9 volts to 15 volts. This switching feature will override the front panel button, only when the front panel button is in the standby position. The XA200 is optimized for 8-ohm speaker loads. Having said that; we Speaker Interface are not aware of any speaker on the market that presents an unusual or difficult load for these amplifiers.
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The XA200 has a single large power transformer, under actual condi- Fun Hardware Facts tions in the amplifier, it supplies but a fraction of its rated power. This very conservative rating contributes to exceptional voltage regulation figures and low noise figures at the loudspeaker.
In the case of safety issues, no product shall be returned to the customer without those safety issues being corrected to the most recent accepted standards. Removal or alteration of original Pass Labs serial numbers voids the factory warranty. Product with altered or missing serial numbers will be suspected as counterfeit product.
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Servicing: To reduce the risk of fire, electrical shock or other injuries, the user should not attempt to service the device beyond that which is described in the operating instructions. All other servicing must be referred to qualified service personnel. XA200 Owner’s Manual...
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It was named Super- symmetry™ as an homage to particle physics, but it is popularly known as the X circuit. Balanced amplifiers improve performance by differentially rejecting dis- tortion and noise. To the extent that distortion and noise are identical, XA200 Owner’s Manual...
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X amplifier, or conversely, a powerfully dynamic Aleph™. The success- ful result is a circuit which is described as balanced single-ended Class A, consisting of two balanced Aleph™ amplifiers sharing a single dif- ferential input pair of transistors. XA200 Owner’s Manual...
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They are not fragile, temperamental or prone to failure. The XA amplifiers operate at approximately 33% efficiency, which is to say they idle at three times their rated output. The XA200 is rated at 200 watts output into 8 ohms and draws something over 600 watts of AC power.
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