PS Audio C250 User Manual

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Back Panel: Power
The C250 is equipped with the standard, 
internationally accepted 15 amp IEC.  This 
device is labeled, “AC input.”  With the 
supplied power cord, or with another high-
end after market cable like the PS Audio 
Lab Cable II, connect the C250 to a power 
source.  
The C250 is internally equipped with a PS 
Audio Power Plant.  This circuit was spe-
cifically tailored for the C250 input stage.  
The primary function of this power plant 
is to regulate and optimize the power line 
signal for the input stage, however you 
may still choose to plug the C250 into a 
PS Audio P1200 Power Plant to obtain 
additional levels of enhancement.  Other-
wise, simply connect the C250 directly into 
your wall receptacle.
The C250 is equipped with a 3 amp fast 
blow fuse to provide protection for the 
regenerator (power plant) board.  This fuse 
can be located where it says, “Regenera-
tor Fuse.”  There is another fuse to provide 
protection for the main amplifier circuitry, 
which has a 15 amp slow blow rating.  This 
fuse can be located where it says, “Main 
Fuse.”
You will find two spare fuses along with 
this user’s guide should you need them.  
To obtain specific information on how to 
replace a fuse, or more importantly to de-
termine if the fuse needs replacing, refer 
to the service section at the end of this 
manual.  
The C250 is capable of handling either 
100-120 volts AC input or 220-240 volts 
AC input.  The input AC circuitry in the 
C250 is auto-sensing.  Therefore, the 
Classic 250 will automatically recognize 
the correct input voltage and make the ap-
propriate internal adjustments to function 
properly.  There are no manual selections 
or switches to be made by the user to se-
lect input voltage.  
Specifications
Stereo 8 ohm power.........250 watts RMS
 
Stereo 4 ohm power.........500 watts RMS 
Mono power...................1,000 watts RMS 
THD+N.............................0.2% at full rated
 
 power into 8 ohms, 20 Hz - 20 KHz 
Frequency Response................+/- 0.1 dB
 
 
 
 
  10 Hz - 22kHz
Dynamic Range..............................111 dB
Max Input Level...........................1.5 Vrms
Max Output Level......................45.5 Vrms
Max Gain...........................................30 dB
Max Power Consumption........1600 watts
Input impedance......................100 K ohm
Input connections.......pair each balanced
 
        (XLR) and single-ended (RCA) 
Output connections.............2 pairs 5-way
 
 
     binding posts per channel 
Dimensions...............17” W x 9” H x 20” D 
Weight..............................................95 lbs
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