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Summary of Contents for Pass XA100
- Page 1 XA100 Owner’s Manual May 18, 2006 XA100 Owner’s Manual...
- Page 2 Driving into a short will not convey any additional power. These are not design oversights or flaws in the XA100, but rather a condition of the very highly biased Class A operation. However; as an interesting point of reference, 100 watts driving a 87dB/1W/1m speaker will deliver in excess of 105 dB (quite loud) average acoustic signal in a 100 cubic meter room.
- Page 3 The XA100 has a massive toroidal transformer coupled to a high current DC reservoir. Recognizing that the XA100’s ability to resolve microdynamics is best experienced with clean power, the extreme low-level resolution of the XA-series benefits from a specially designed power supply that significantly reduces and rejects power line borne noise.
- Page 4 Several XA100’s may be easily run in conjunction with other audio products 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 of this...
- Page 5 Make sure you are in standby mode to protect your speakers from transients. The prudent installer will unplug the XA100’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.
- Page 6 People are interested in how long it takes for these amplifiers to break in. Depending on the resolution of the rest of your audio chain, you may or may not notice any break in of the XA100 beyond the first 50 hours of operation. You will likely notice the difference...
- Page 7 Speaker Interface The XA100 is optimized for 8-ohm speaker loads. Having said that; we are not aware of any speaker on the market that presents an unusual or difficult load for these amplifiers.
- Page 8 The XA100 has a single large power transformer, under actual Fun Hardware Facts conditions in the amplifier, it supplies but a fraction of its rated power.
- Page 9 Foresthill, CA 95631 Tel: 530.367.3690 Fax: 530.369.2193 www.passlabs.com © 2006, Pass Laboratories Inc. “Pass”, “pass”, “Pass Labs”, “Pass Laboratories”, Supersymmetery”, “Aleph”, and “Zen” and are all registered trademarks of Pass Laboratories, Inc., and all rights thereto are protected by law.
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Page 10: Warranty Information
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. - Page 11 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. XA100 Owner’s Manual...
- Page 12 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, XA100 Owner’s Manual...
- Page 13 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. XA100 Owner’s Manual...
- Page 14 Alephs™. Are the XA’s better than Alephs™ and X’s in every respect? Yes, except for the higher power/current ratings of the X amps. Are they the best audio amplifiers that money can buy? Absolutely! XA100 Owner’s Manual...
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