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10

XA200.5 Owner’s Manual

After that, the longevity will depend upon the number of  operating 
thermal cycles, but we can say that we have had amplifiers operating 
in the field in excess of  20 years with no particular mortality, and we 
don’t have good information beyond that.  

More to the point, you should not worry about it.  This is a 
conservatively built industrial design, not a frail tube circuit run on 
the brink of  catastrophic failure.  If  it breaks, we will simply get it 
fixed, so sleep well.

Pass Laboratories
PO Box 219
24449 Foresthill Rd
Foresthill, CA  95631  USA

www.passlabs.com 

[email protected]

[email protected]

tel: 

(530)  367  3690

fax: 

(530)  367 2193

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.

Summary of Contents for XA200.5

Page 1: ...1 XA200 5 Owner s Manual pass XA200 5 Owner s Manual October 2007 ...

Page 2: ... power amplifiers based on the SuperSymmetric topology U S Patent 5 376 899 which elicits high power and performance from simple circuits with minimal feedback The first X amplifier the X1000 was intended as the premier example of the power of this principle delivering 1000 watts rms into 8 ohms at low distortion By itself of course this is no miracle but you have to consider that products with co...

Page 3: ...ts are the result of trial and error and extensive listening Measurement of performance is important to us and we feel that well designed product sounds good and measures good Apparently it is possible to make an amplifier which measures well but which does not please the ears and so we let our ears be the final judge X 5 and XA 5 amplifiers utilize the same basic circuit topology and gain devices...

Page 4: ...carefully and critically to our amplifiers with a wide variety of associated equipment and we take our time with it Musical performance is most important and is the basis of our success over the years It s true that we also value the other things The design and manufacturing decisions have to balance subjective performance against reliability cost specs and ego in approximately that order That is ...

Page 5: ... minimum noise this switch should be toggled in stand by mode We have provided a standard IEC power cord that fits into the standard 15 amp IEC receptacle at the rear of the amplifier chassis With the exception of the largest of the X and XA series there is no difficulty running two amplifiers on a single 15 amp circuit Given the high current draw we generally do not recommend active line conditio...

Page 6: ... give lower noise and slightly less distortion They are recommended unless your favorite source component has only RCA outputs Also on the rear panel are the output connections for the loudspeakers On stereo amplifiers there is one pair per channel and on mono amplifiers we provide two pairs wired in parallel to facilitate bi wiring a loudspeaker As you are probably familiar the red one is positiv...

Page 7: ... power switch and unplug the AC power cord from the wall while you connect the speakers and inputs Check to make certain that the loudspeaker cables aren t shorted at the loudspeaker end connect speaker cables to the output binding posts on the amplifiers observing correct polarity The output binding posts will accept either bare wire or spades Regulatory agencies in many countries have banned bin...

Page 8: ...able and the failure rate of our amplifiers is very low This is small comfort to the few but take it easy and give us a call if you have problems 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 amplifier beyond the first few hours of operation You will very likely n...

Page 9: ...find any really exceptional cable made of gold please gift us a couple hundred feet Fortunately this amplifier is not sensitive to the capacitive inductive character of some of the specialty speaker cables so feel free to experiment We have found that about 90 per cent of bad sounding cables are really bad sounding connections and we recommend that attention be paid to cleanliness of electrical co...

Page 10: ...bout it This is a conservatively built industrial design not a frail tube circuit run on the brink of catastrophic failure If it breaks we will simply get it fixed so sleep well Pass Laboratories PO Box 219 24449 Foresthill Rd Foresthill CA 95631 USA www passlabs com sales passlabs com service passlabas com tel 530 367 3690 fax 530 367 2193 pass Pass Pass Labs Pass Laboratories Supersymmetery Alep...

Page 11: ...11 XA200 5 Owner s Manual ...

Page 12: ...e and customer rights for product purchased outside the United States may vary depending upon the distributor and local laws Please check with your local distributor for specific information Any modifications to Pass Laboratories products that have not received written factory approval nullify all claims and void the warranty Should a modified product be returned to the factory for repair the owne...

Page 13: ...e one that is fully safety rated by the necessary local authority Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on abraded or pinched by items placed on or against them paying particular attention to cords where they enter plugs or exit from a device Never under any circumstance insert a cut or damaged power cord into a mains power socket Power ...

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