Pass Labs Car Amplifier XA60 Manuel D’Utilisation

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XA60 Owner’s Manual
(very loud) average acoustic signal in a 100 cubic meter room, peaks 
will be somewhat higher.
The XA60 has a massive toroidal transformer coupled to a high 
current DC reservoir. Recognizing that the XA60’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.
The XA amps open the sonic soundstage to the very limits of  the 
recording format.  Through the XA60 complex musical passages 
reveal themselves in the most dramatic manner.   With the XA60 you 
will hear everything within the upper octaves, which includes any 
recording, source or loudspeaker issues.  Keep this in mind when 
choosing complementary equipment, remembering that recordings 
and the other components in the signal chain will strongly dictate 
soundstage width and imaging and likely be the limiting factors in 
your listening environment. The room itself  will also add its acoustic 
signature, and should be considered an audio component.
Speaker selection should be strictly a matter of  personal taste. 
The XA60 is unconditionally stable into any load presented by a 
loudspeaker, but will provide less power into other than 8 ohms.  The 
XA60 accommodates both single ended (RCA) and balanced inputs 
(XLR).  Input impedance’s are 11 kohm unbalanced and 22 kohm 
balanced to permit integration with the widest possible range of  
upstream components. 
You can position this amplifier anywhere you wish, but it must have 
ventilation.  We do not recommend placing it in enclosed cabinets 
or small closets without means for air to circulate freely.  Stacking 
these power amplifiers directly upon each other or upon other 
audio components is not recommended for the same reason.   This 
amplifier idles at approximately 300 watts, the equivalent of  an 
incandescent reading light. At idle most of  that energy is dissipated 
across the heat sinks, so the heat generated by each XA60 is 
equivalent to an incandescent reading light. To dissipate this heat the 
product should have about 6 inches clearance to the top and sides for 
adequate air circulation. 
Let’s talk about power requirements.  The amplifier draws about 2.5 
amps (continuous rms) at 120 volts out of  the wall during operation, 
and this reflects mostly the idle current that we run through the 
output stage. When not actually intending to play music the XA60 
should be left in standby mode.  In standby mode it draws only a few 
watts of  power, that necessary to keep the capacitors charged.  
Requirements