PS Audio C250 User Manual
Page 7

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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