Perreaux SX25 User Manual
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Internal Mains Fuse Rating
1 x 2SB 500mA slow blow
(NOT user serviceable)
Internal Output Fuse Rating
2 x 2SB 4A normal blow
(NOT user serviceable)
Overall Dimensions
Width........................................................................216mm (8.5”)
Depth........................................................................178mm (7.0”)
Height........................................................................ 58mm (2.3”)
Weight
Gross ..........................................................................3.0kg (6.6lb)
Net............................................................................. 2.4kg (5.3lb)
Specifications
Explained
Rated Power Output
(
per channel
)
.......................25W
RMS
into 8Ω
This is the optimum operating level of the unit, offering the best
performance whilst allowing a large enough buffer to
accommodate the unpredictable nature of music. It is the
reference output level to which other specifications, such as
sensitivity and gain, are referred. The Rated Output does not
indicate the full capability of the SX25.
Voltage Swing ...................................................................... 55.2V
p-p
Loud transients call for a sudden burst of power from the
amplifier to drive the speakers. This force is voltage. Peak-to-
peak voltage is a more useful specification than Watts when it
comes to delivering power to a speaker.
Input Sensitivity ................................................................... 0.63V
RMS
The Input Sensitivity figure indicates the input voltage required
to achieve “rated” output (25W
RMS
into 8Ω).
Gain ........................................................................................... 27.1dB
The amount of amplification the amplifier is asserting on the
input signal. Gain can be calculated by dividing the rated output
by the input sensitivity.
Input Impedance....................................................................... 40kΩ
The resistance “load” that is presented to the source component
that is driving the SX25.