Perreaux SX25i User manual

SX25i
SX25iSX25i
SX25i
25W Integrated Amplifier
Owners Manual

1
Perreaux Industries Limited makes no warranty for the use of its products, other
than those expressly contained in the warranty detailed herein. The Company
assumes no responsibility for any errors which may appear in this document,
reserves the right to change products or specifications detailed herein at any time
without notice, and does not make any commitment to update the information
contained herein. No licenses to patents or other intellectual property of Perreaux
are granted by the Company in connection with the sale of Perreaux products,
expressly or by implication.
mboob^ru®is a registered trademark of Perreaux Industries Ltd.
Terms and product names in this document may be trademarks of others.

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i
iii Introducing the
Perreaux Silhouette Series
Designed as a range of high quality, yet affordable modules; the
‘Silhouette’ series will compliment and enhance your existing
system.
Drawing on our extensive knowledge gained from more than a
quarter of a century of developing highest quality audio products,
the ‘Silhouette’ concentrates our legendary design and build
quality into a compact package without sacrificing performance.
The Perreaux ‘Silhouette’ series provides performance levels
never before seen in its class.
Key Features  Class A signal stages
 Highest quality internal power supply featuring a custom
designed, fully shielded toroidal transformer and 13200µF
of smoothing capacitance
 Optimal internal layout incorporating total separation
between channels
 Enhanced audio design featuring highest quality PCB and
minimal internal wiring
 Line-out connections
 High current drive
 Compact
 Stylish
The Perreaux “Silhouette” series takes you even closer to the
elusive goal of “The Perfect Re-Creation of a Musical
Event”.
From all of us at Perreaux Industries Limited, thank you for
choosing the Perreaux Silhouette Series SX25i Integrated
Amplifier.

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ii
iiii
ii Important Safety Instructions
Note: Please read all instructions carefully before attempting to
operate your Perreaux “Silhouette” SX25i Integrated
Amplifier.
ALWAYS switch off power to your system before attempting to
connect or disconnect cables.
ALWAYS disconnect your system from the mains before
attempting to clean your unit.
ALWAYS keep electrical equipment out of reach of children.
ALWAYS unplug sensitive electronic equipment during
electrical storms.
NEVER disconnect the mains earth from the system.
NEVER operate the SX25i with the cover removed.
NEVER use any liquid inside the SX25i.
NEVER bypass any fuse.
NEVER attempt to repair the SX25i. In the event of a problem,
please contact your Perreaux dealer.
NEVER expose the SX25i to extremely high or low
temperatures.
NEVER operate this product in an explosive atmosphere.

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iii
iiiiii
iii Table of Contents
i
iiiIntroducing the Perreaux Silhouette Series .................................... 3
ii
iiii
ii Important Safety Instructions ............................................................. 4
iii
iiiiii
iii Table of Contents .................................................................................. 5
1
11
1Unpacking and Placement .................................................................. 6
2
22
2Instant Install .......................................................................................... 7
3
33
3Front Panel Functions .......................................................................... 9
4
44
4Rear Panel Functions ..........................................................................10
5
55
5Special Design Philosophies..............................................................12
6
66
6Special Design Features .....................................................................14
7
77
7Care and Maintenance .......................................................................16
8
88
8Warranty Information ........................................................................17
9
99
9Extended Warranty Registration Form ..........................................18
10
1010
10 Troubleshooting Guide ......................................................................19
11
1111
11 Specifications........................................................................................21
12
1212
12 Physical Dimensions............................................................................24
13
1313
13 Contact Details .....................................................................................25

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1
11
1 Unpacking and Placement
Unpacking
Procedure
The SX25i is packaged for maximum protection. To open, sit the
box upright and cut the reinforced tape at the top of the box. The
product can now be removed.
Pull the foam protecting end-caps off either side of the unit and
remove the black material covering.
The SX25i Integrated amplifier is now unpacked and ready for
further installation.
Note: Please retain all packaging material for future transport.
Box
Contents
1 x SX25i Integrated amplifier
1 x Product manual
3 x Performance analysis charts
1 x Detachable AC power cord
Placing Your
SX25i
The SX25i should generally be placed close to your source
equipment, thus keeping interconnect cabling between the SX25i
and associated components as short as practical. This will reduce
the systems susceptibility to radio frequency interference and the
negative effects associated with long cables.
Ventilation
Requirements
The SX25i is a convection cooled amplifier. For optimal
performance, the unit MUST receive adequate ventilation.
 Please do not cover the product with a cloth or similar.
 Please do not mount the SX25i directly onto carpeted
surfaces.
In the event that the SX25i is to be incorporated into custom
cabinetry, please refer to the dimensional information provided in
the Physical Dimensions section of the manual (Chapter 12).
Note: Please take all necessary steps to ensure that the unit
receives adequate ventilation

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2
22
2 Instant Install
If you are like us, the first thing you will want to do is to play
your favourite piece of music through your new SX25i. The
following instructions are written to enable you to achieve this as
quickly as possible. These are not comprehensive instructions,
but are designed to enable you to play music now!
Note: Please take the time to read the SX25i manual thoroughly
as it incorporates many features, which will enhance its
operation.
Placement
The SX25i is a convection cooled amplifier and best results will
be achieved when placed on a solid surface with adequate
ventilation. DO NOT place on a carpeted floor or cover the
amplifier!
Place the SX25i close or near the source component in order to
make as short a connection as possible.
Turn off associated components
This minimises the potential to damage any other components
when connecting your SX25i into the system.
Connect source to SX25i
Connect the audio output from the source component to the
inputs at the rear of the SX25i. Refer to Chapter 4 for Rear Panel
information.
Connect loud speaker cables to SX25i
Connect your left and right channel loudspeaker leads to the
bindng posts at the rear of the amplifier. Refer to Chapter 4 for
Rear Panel information.
Note: Make sure the nominal impedance of the loudspeakers is
not lower than 2Ω.

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Switch on SX25i
Caution! Prior to connecting the AC mains, please check the voltage
label on the rear panel to ensure that your unit conforms to
the power supply in your area. Never attempt to connect
the unit to the incorrect voltage.
Insert the power cord supplied into the rear of the SX25i and into
the wall. Switch on the socket at the wall and turn on the power
of the SX25i by setting the power switch down.
Switch on source component
Power up your source component and start your favourite
recording. Slowly increase the SX25i volume to achieve a
comfortable listening level.
CONGRATULATIONS!
Now that you have achieved your first objective, sit back, relax
and please read the rest of the manual at your own pace in your
favourite armchair whilst sipping a hot cup of coffee. You’ll find
the whole experience much more pleasurable whilst listening to
music.

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3
33
3 Front Panel Functions
Power LED
This blue LED indicates the power status of your SX25i
integrated amplifier.
Volume Control
The high-quality, machined aluminium knob is the sole user
interface, reminding the user at every touch of the superior build
quality designed into the SX25i. Volume control motion is
smooth and accurate, providing absolute control with near
infinite gain resolution.