Perreaux Switch SXV1 User Manual

Silhouette

SXV1

Phono Preamplifier Module

Owners Manual

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Introducing the

Perreaux Silhouette Series

The Perreaux “Silhouette” series represents exceptional

engineering at an affordable price.

The series incorporates some of the highest levels of audio

engineering available today.

Key Features

Highly flexible for any cartridge

Full Class A operation

Low noise, sensitive input stage

Highest quality internal power supply featuring a custom

designed, fully shielded toroidal transformer and 17600µF

of smoothing capacitance

Optimal internal layout incorporating total separation

between channels

Enhanced audio design featuring highest quality PCB and

minimal internal wiring

Moving Magnet & Moving Cartridge compatible

High rated output

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 SXV1 Phono

Preamplifier.

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Important Safety Instructions

Note:

Please read all instructions carefully before attempting to

operate your Perreaux “Silhouette” SXV1 Phono

Preamplifier.

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 SXV1 with the cover removed.

NEVER use any liquid inside the SXV1.

NEVER bypass any fuse.

NEVER attempt to repair the SXV1. In the event of a problem,

please contact your Perreaux dealer.

NEVER expose the SXV1 to extremely high or low

temperatures.

NEVER operate this product in an explosive atmosphere.

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iii

Table of Contents

Introducing the Perreaux Silhouette Series...................................3

Important Safety Instructions ..........................................................4

Table of Contents...............................................................................5

Unpacking and Placement ...............................................................6

Instant Install......................................................................................7

Rear Panel Functions.........................................................................9

Customising Your SXV1...................................................................11

iii

Impedance Loading Table ............................................................................... 12

Capacitance Loading Table ............................................................................. 13

Gain Setting Table ............................................................................................... 13

Configuration Example ......................................................................................... 14

Special Design Philosophies...........................................................15

Special Design Features..................................................................17

Care and Maintenance....................................................................19

Warranty Information.....................................................................20

Extended Warranty Registration Form ........................................21

Troubleshooting Guide...................................................................22

Specifications....................................................................................25

Contact Details.................................................................................28

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Unpacking and Placement

Unpacking

Procedure

The SXV1 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 white polystyrene protectors off either side of the unit

and remove the black material covering.

The SXV1 Phono amplifier is now unpacked and ready for

further installation.

Note:

Please retain all packaging material for future transport.

Box

Contents

1 x SXV1 Phono Preamplifier

1 x Product manual

1 x Detachable AC power cord

Placing Your

SXV1

The SXV1 should generally be placed close to your source

equipment, thus keeping the interconnect cabling between the

tone arm and phono stage 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 SXV1 is a low power preamplifier. Ventilation requirements

are not considered to be an important factor in product

placement.

In the event that the SXV1 is to be incorporated into custom

cabinetry, please refer to the dimensional information provided in

the Specifications section of the manual (Chapter 11).

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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 SXV1. 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 SXV1 manual thoroughly

as it incorporates many features, which will enhance its

operation.

Placement

The SXV1 is a highly sensitive preamplifier and best results will

be achieved when placed away from potential interference from

other components and electrical devices, for example AC mains

cords/outlets, transformers, high power amplifiers, computers,

etc.

Place the SXV1 close or near the turntable in order to make as

short a connection as possible between the tone arm and

preamplifier.

Turn off associated components

This minimises the potential to damage any other components

when connecting your SXV1 into the system.

Connect turntable to SXV1

Connect the audio output from the turntable to the inputs at the

rear of the SXV1. Also, connect the turntable earth terminal to

the earth post on the SXV1. Refer to Chapter 3 for Rear Panel

information.

Connect SXV1 to preamplifier

Connect the line level output of the SXV1 to one of your

preamplifier inputs. Refer to Chapter 3 for Rear Panel

information.

Configure SXV1 cartridge settings

Set the DIP switches on the SXV1 to correspond with the

manufacturers specifications of your particular cartridge. Refer

to Chapter 4 for setup information.

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Switch on preamplifier/amplifier

Set the volume to the minimum level and select the input that the

SXV1 is connected to.

Switch on SXV1

Insert the power cord supplied into the rear of the SXV1 and into

the wall. Switch on the socket at the wall and turn on the power

of the SXV1 by setting the power switch down.

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.

Switch on turntable

Power up your turntable and start the player with your favourite

record. Slowly increase the amplifier 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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Rear Panel Functions

Right Channel Cartridge Load Setting DIP Switch

Set these switches to correspond with the cartridge

manufacturers recommended load figure. For an in depth

discussion on this, please refer to Chapter 4.

Right and Left Phono Inputs

Input from turntable, accepts a standard unbalanced input (RCA).

The left channel connection is on the right when looking from

the rear, indicated by white inner ring. For more information on

input specifications, please refer to Chapter 11.

Right and Left Line Level Outputs

Output to preamplifier, accepts a standard unbalanced input

(RCA). The left channel connection is on the right when looking

from the rear, indicated by white inner ring. For more

information on output specifications, please refer to Chapter 11.

Left Channel Cartridge Load Setting DIP Switch

Set these switches to correspond with the cartridge

manufacturers recommended load figure. For an in depth

discussion on this, please refer to Chapter 4.

Phono Earth

Terminal for the earth connector from your turntable. If

grounding your turntable does not alleviate hum problems,

please consult the Troubleshooting Guide in Chapter 10.

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AC Mains Input

An IEC-standard mains input is provided at the rear of the unit.

The AC cord set is removable, allowing it to be upgraded at your

will.

On/Off Switch

When operating the switch down, power is applied to the SXV1.

Serial Number/Voltage Label

The serial number is unique to your SXV1. Please record this

number and store it in a safe place. For any service related

enquiry, please be prepared to quote the product serial number to

Perreaux personnel or their service representative.

The voltage displayed in this area is the ONLY voltage that can

be accepted by the unit.

Caution!

Never attempt to connect the unit to the incorrect voltage.

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Customising Your SXV1

The Perreaux SXV1 gives you complete access to all cartridge-

loading parameters for each channel via the 12-way rear mounted

DIP switches.

Two DIP switches are required, as Perreaux engineers have

meticulously laid the internal circuitry out on the internal PCB

maintaining maximum isolation between channels. Each DIP

switch should be set to be a mirror of the other.

Cartridge load settings should be set up to directly correspond to

the cartridge manufacturers recommended loading figure. If you

don’t know the recommended loading of your cartridge, please

contact the cartridge manufacturer or your dealer for this

information.

It is recommended that you make adjustments to the settings

using a pen or other similar pointed object.

Impedance loading values are set using switches 1 through 5.

Capacitive loading values are set using switches 6 through 9.

Gain values are set using switches 10 through 12.

Caution!

Note:

NEVER change the DIP switch settings of your SXV1 whilst

it is turned on.

Each DIP switch should be set to be a mirror image of the

other channel.

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Impedance

Table

Use this table to match the impedance loading characteristics of

your SXV1 to that recommended by your cartridge manufacturer,

where switch in UP position is OFF and switch in DOWN

position is ON. Consult your cartridge documentation for the

correct impedance figure.

R Load

Dip Switch Setting

(W)

47000

23500 DOWN

8246 UP

7015 DOWN

979 UP

959 DOWN

892 UP

875 DOWN

99.8 UP

99.6 DOWN

98.8 UP

98.6 DOWN

90.7 UP

90.6 DOWN

89.9 UP

89.7 DOWN

10.0 UP

10.0 DOWN

10.0 UP

10.0 DOWN

9.90 UP

9.90 DOWN

9.89 UP

9.89 DOWN

9.09 UP

9.09 DOWN

9.08 UP

9.08 DOWN

9.01 UP

9.01 DOWN

9.00 UP

9.00 DOWN

DOWN

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Capacitance

Table

Use this table to match the capacitance loading characteristics of

your SXV1 to that recommended by your cartridge manufacturer,

where switch in UP position is OFF and switch in DOWN

position is ON. Consult your cartridge documentation for the

correct capacitance figure.

C Load

Dip Switch Setting

(pF)

DOWN

54 DOWN

74 UP

101 DOWN

297 UP

324 DOWN

344 UP

371 DOWN

417 UP

444 DOWN

464 UP

491 DOWN

687 UP

714 DOWN

734 UP

761 DOWN

DOWN

Gain Setting

Table

Use this table to configure the gain characteristics of your SXV1

to suit the output voltage of the cartridge you are using, where

switch in UP position is OFF and switch in DOWN position is

ON.

Consult your cartridge documentation for it’s rated output

voltage. Set the gain configuration where the “Sensitivity” of

your SXV1 is within ±25% of your cartridge output voltage. If

no configuration falls into this bracket, use the setting with the

sensitivity higher than your cartridge output voltage.

Gain

(dB)

Sensitivity S/N Ratio THD+N

(mV) (dB) (%)

7.57 81.9 0.010

Dip Switch Setting

DOWN

2.36

0.81

0.66

0.23

0.22

0.18

0.17

74.6

64.0

62.6

55.4

55.1

54.6

53.4

0.022 DOWN

0.058 UP

0.067 DOWN DOWN

0.122

0.188 DOWN

0.199 UP

0.203 DOWN DOWN DOWN

DOWN

DOWN DOWN

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Note:

If more than one setting falls within ±25% of your cartridge

output voltage, the lower sensitivity configuration will

result in greater dynamic range, the higher will be less

susceptible to clipping.

Rated output is 0.75V_RMS

Sensitivity value measured at rated output.

Gain measured at 1kHz.

Configuration

Example

Please use the following example of the popular Ortofon

Kontrapunkt b (Moving Coil) cartridge as a guideline.

Ortofon Kontrapunkt b specifications

Recommended load resistance:

Recommended load capacitance: not stated

50W-200W

Rated output voltage:

SXV1 configuration

470µV

Resistance loading:

Capacitance loading:

89.7W

27pF

(if no capacitance loading is recommended, use the lowest value)

Gain:

61dB

(based on Sensitivity bracket of 470ìV±25% Þ 352.5µV-587.5µV)

DIP Switch Setting (left channel)

10 11 12

Note: D = switch in DOWN position, U = switch in UP position

Note:

The right and left DIP switches are a mirror image of each

other.

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Special Design Philosophies

Perreaux has been designing and manufacturing only the highest

quality audio componentry for more than a quarter of a century.

Technology has continued to evolve rapidly over that time and

our knowledge and application of design, materials and

manufacturing techniques has advanced in tandem with this.

Today’s Perreaux range comes closer to fulfilling our shared

vision than at any other time in the past.

The SXV1 has been developed to meet customer demands for

compact higher quality products. Careful attention has been

taken throughout the development phase, not to make

compromises that would degrade the high quality of reproduction

that the unit is capable of delivering.

To follow is a discussion on some of Perreaux design

philosophies that have been incorporated into the entire range.

Minimalist

Design

Leading British architect, John Pawson, writes:

“The Minimum can be defined as the perfection

that an object achieves when it is no longer

possible to improve it by subtraction. This is the

quality that an object has when every component,

every detail, and every junction has been reduced

or condensed to the essentials. It is the result of

the omission of the inessentials”.

Perreaux has historically embraced the minimalist ethic from an

audio design perspective only. The concept of “less equating to

more” has been at the heart of all Perreaux audio designs for

more than a quarter of a century. Our current product offering

takes the minimalist ethic to new levels by totally embracing the

concept.

Minimalist Electronics

We wish to maximise the quality of your listening pleasure by

keeping the componentry and signal path as uncluttered, short

and clean possible. All components in the signal path, even those

of the highest quality have an effect on the signal, thereby

altering the quality of the reproduction in some way. Our aim is

to recreate in its entirety, the original performance by not adding

or subtracting anything, irrespective of the source.

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Minimalist Aesthetics

Our products appeal to those who seek the ultimate in audio

exclusivity, namely the perfect blend of “form and function”.

“Form and function” are both tough masters. We make no

excuses for producing some of the most distinctive high-end

audio products on the planet. We let “form and function” blend

together in perfect harmony. This surely is the essence of true

minimalist utilisation.

Minimalism in a Wider Context

John Pawson writes:

“Clearly simplicity has dimensions to it that go

beyond the purely aesthetic: it can be seen as the

reflection of some innate, inner quality, or the

pursuit of philosophical or literary insight into the

nature of harmony, reason, and truth”.

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Special Design Features

Construction

The beautifully styled curving front panel is milled from solid

6.0mm (0.2”) thick aluminium extrusion and finished in a special

“Perreaux only” formulation of durable high quality black

powder coat. The front panel also features the PERREAUX^®

logo carved into the solid aluminium. The chassis and cover are

both manufactured from heavy gauge metal. No cover fixing

screws are visible. The “Silhouette” SXV1 is stylish yet

functional and exhibits typical hallmarks of the Perreaux brand.

Circuit

Topology

The Power

Supply

The SXV1 has an internal power supply. These designs are

invariably more sophisticated than those featuring external plug

in power packs. Special attention must be paid to shielding,

supply transformer design, capacitance and earthing.

Perreaux has specially developed a 6x oversized (10VA) fully

shielded internal toroidal power supply for the phono supply. A

total of 17600µF of smoothing capacitance and low pass RC

filters are employed to provide a “rock-solid”, super low ripple,

linear regulated, DC supply.

R & C

With 21 values of Resistance loading and 16 values of

Capacitance loading, Perreaux engineers have designed the

ultimate flexibility to enable the user to match any cartridge.

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Gain

With a gain range of +40dB to +73dB, the SXV1 is incredibly

sensitive. Working in combination with the wide selection of R

and C loading the user has no need for messy MM/MC jumpers

as any type of cartridge can be matched via the external

selectable DIP switch settings.

Single

Channel

Block

Diagram

RIAA

Equalisation

The RIAA uses robust equalization architecture with high

precision, low noise resistors and highly linear metalised

polyester capacitors for optimum signal transfer.

RIAA

deviation is ±0.5dB, 20Hz-20kHz, and from 100Hz-20kHz

deviation is a mere ±0.2dB.

Input Stage

PCB Layout

Perreaux have utilised the CA3046 transistor array package. The

main advantage of this device is that it features highly accurate

gain matching on account of the reason that the transistors all

share the same silicon substrate. The CA3046 device provides a

low noise but highly sensitive interface between cartridge and the

RIAA EQ section. Coupled with accurate current mirroring

circuitry and stable current sources, the circuit topology works in

combination to make for sonic transparency.

Special attention has been lavished on the PCB layout. The unit

is symmetrical in design (note the DIP switch numbers, they are

a mirror of each other, and the input/output RCA configuration),

with each channel being isolated from the other. The super clean

custom designed power supply is physically segregated from the

rest of the sensitive electronics.

Earth

Isolation

Special attention has been paid to ground planes to maintain

sonic purity. All signal grounding is isolated from mains earth.

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Care and Maintenance

Note:

Please switch the unit off and remove the cord set from the

rear of the Phono Amplifier before attempting to clean

your SXV1 in the manner described below.

Never apply liquid directly to the SXV1.

Never use abrasives.

Never rub in a circular motion.

The front panel and cover feature a durable high quality powder

coat finish.

To remove finger marks and dirt, lightly rub the surface with a

soft cloth.

If the dirt is not removed, dip your cloth in a mild solution of

soap and water, squeeze excess moisture from it and then gently

reapply to the surface.

Stubborn dirt may be removed by the application of a small

quantity of isopropyl alcohol, applied directly to the cleaning

cloth only, and reworking the effected area.

The Perreaux SXV1 has been designed to provide many years of

trouble free enjoyment.

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Warranty Information

1 Year

Limited

Warranty

The Perreaux SXV1 is warranted free from defects in material

and workmanship under normal use for a period of 1-year (365

days) from the date of purchase.

To extend the warranty of the Perreaux SXV1 to three (3) years

from date of purchase, please return a fully completed warranty

registration form along with a copy of the original receipt of

purchase to:

Perreaux Industries Ltd

PO Box 47413

Ponsonby

Auckland

New Zealand

For the Extended Warranty Registration Form, please refer to

Chapter 9.

3 Year

Extended

Warranty

The extended warranty for the Perreaux SXV1 is three (3) years

from the date of purchase. If during the warranty period the

SXV1 exhibits defects in materials and/or workmanship, it will

be repaired or replaced, at our option, without charge for either

parts or labour, at our factory in Auckland, New Zealand. The

warranty does not apply to any unit that has been misused,

abused or altered.

Any unit that is not performing satisfactorily may be returned to

the factory in Auckland, New Zealand for evaluation. Return

authorisation must first be obtained by either calling or writing to

Perreaux prior to shipping the unit. Perreaux Industries Ltd and

it’s authorised distributors and dealers shall not be held liable for

any freight or insurance charges. Freight and insurance charges

to and from the Perreaux factory will be the sole responsibility of

the owner of the unit.

There is no other express warranty on the SXV1. Neither this

warranty nor any other warranty, express or implied, including

any implied warranties of merchantability of fitness, shall extend

beyond the warranty period. No responsibility is assumed for

any incidental or consequential damages.

Obtaining

Service

In the event that you are experiencing difficulty with your SXV1,

please as a first step consult the troubleshooting guide in Chapter

10. For further assistance, please contact your Perreaux dealer.

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Extended Warranty

Registration Form

Please complete this form and either fax, mail or e-mail it, along

with a copy of the original receipt, to Perreaux Industries Ltd.

Fax:

+64 9 815 5981

Mail:

Perreaux Industries Ltd

PO Box 47 413

Ponsonby

Auckland

New Zealand

E-mail: [email protected]

Alternatively, complete the online Warranty Registration Form

on our website – www.perreaux.com.

3 Year Extended

Warranty Form

Name:

Address:

Suburb:

City:

Country:

Telephone:

E-mail:

Website:

Product:

S I L H O U E T T E S X V 1

Serial No:

Dealer:

Purchase Date:

m m

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Troubleshooting Guide

Please use this guide if you are experiencing any problems with

the SXV1 in your system. It will provide possible solutions for

some given symptoms.

There is a Output signal is clipping

crackling

noise

coming from

my speakers

The SXV1 gain setting is too high. Confirm that the gain is

configured correctly for your cartridge. If you are unsure,

decrease the gain setting step by step until the crackling noise

goes away.

Note:

Ensure you switch the unit off before adjusting the DIP

switches.

Dust on needle and/or record

Make sure that your needle and record are free from dust and

debris.

I turn up the Output level is too low

volume but

it isn’t very

loud

The SXV1 gain setting is too low. Confirm that the gain is

configured correctly for your cartridge. If you are unsure,

increase the gain setting step by step until the volume level is

suitable.

Note:

Ensure you switch the unit off before adjusting the DIP

switches.

Incorrect cartridge loading

The resistive and capacitive cartridge loading configurations are

not set correctly.

Check that these settings match the

requirements of your cartridge.

There is no SXV1 not turned on

output from

my system

Make sure the SXV1 power switch is in the DOWN position.

AC cord not plugged in

Check that the AC cord is plugged into the IEC socket on the rear

of the SXV1.

Mains power not turned on

Check if the power is turn on at the mains socket on the wall.

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Interconnect cables not connected

Make sure that the input and output interconnect cables are

plugged in and are connected to the respective RCA sockets on

the rear of the SXV1.

Cartridge not connected

Confirm that the cartridge is correctly connected and fitted to the

tone arm.

Turntable not turned on

Check that your turntable is plugged into the mains and the

power is turned on.

Tone arm is not lowered onto record

Make sure that the tone arm is moved from it’s stationary

position and lowered onto the record.

Other components not turned on

Check that your preamplifier and/or amplifier are plugged into

the mains and the power is turned on.

No volume setting

Make sure that the volume on your preamplifier or amplifier is

set to a suitable level. Check that it is not muted or attenuated.

Preamplifier/amplifier set to incorrect input

Confirm that the source input on your preamplifier/amplifier is

set to the appropriate input.

Speakers not connected

Check that your speaker cables are firmly connected at both the

binding posts of your amplifier and the speaker terminals.

I can hear a Phono earth not connected

hum coming

through my

speakers

Confirm that the earth terminal from your turntable is solidly

connected to the phono earth binding post on the rear of the

SXV1.

Phono earth binding post and/or earth terminal corroded

Check that the phono earth binding post on the rear of the SXV1

and the earth terminal from your turntable is free from corrosion.

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Interconnect cables damaged

Make sure that the integrity of your interconnect cables is sound

and they are firmly connected to your turntable and the SXV1.

SXV1 is close to external interference

Check the proximity of your SXV1 to any possible source of

EMI and/or RF interference, for example computers, televisions,

amplifiers, speakers, etc. Ideally the SXV1 should be placed as

close as possible to your turntable.

Earth loop in system

If your preamplifier and/or amplifier have an earth/ground lift

switch, toggle it and check which setting sounds better. The

signal ground of the SXV1 is isolated from earth by default, this

means that there needs to be a connection to earth elsewhere in

your system to alleviate hum.

My speaker Tone arm set up incorrectly

cones are

moving

excessively

at low

Check that your tone arm is set up correctly and it is properly

weighted and balanced.

Turntable susceptible to vibration

frequencies

Make sure that your turntable is solidly mounted on a surface that

not prone to vibration.

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Specifications

The correlation between published specifications and sonic

quality can be unreliable. A list of numbers reveals virtually

nothing. All technical measurements must be subject to

qualitative as well as quantitative interpretation. Measurements

of the SXV1 reveal excellent results by any standards. Tested at

115V and 230V after a 10 minute warm up period.

Sensitivity......................................................0.17mV to 7.6mV^*

Specifications

in Brief

Gain..................................................................... 40dB to 73dB^*

Input Impedance (R) ...............................................9W to 47kW

Input Capacitance (C).......................................... 27pF to 760pF^*

THD+N .......................................0.01%, 1kHZ @ rated output^**

Signal to Noise Ratio

Unweighted .................................................................>80dB^**

‘A’ weighted................................................................>85dB^**

Input Overload Margin........................................................18dB

RIAA Accuracy ........................................ ±0.5dB, 20Hz–20kHz

Output Impedance................................................................47W

Rated Output................................................................ 0.75V_RMS

Maximum Output...........................................6.0V_RMS(17.0V_p-p)

Wideband Frequency Response...............................5kHz–40kHz

Operating Class...............................................................Class A

Power Consumption ........................................................... 1.6W

Note:

^*User selectable

^**Measurements taken with lowest gain setting

Audio Connections

Inputs................................................... 1 pair unbalanced (RCA)

Outputs................................................ 1 pair unbalanced (RCA)

Other Connections

IEC AC mains input receptacle

Earth ground terminal

Mains Input Voltage

115V or 230V AC at 50Hz/60Hz

(Set within the SXV1 at time of manufacture)

Internal Mains Fuse Rating

1 x 2SB 500mA fast blow

(NOT user serviceable)

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Overall Dimensions

Width....................................................................215mm (8.5”)

Depth....................................................................168mm (6.6”)

Height.....................................................................57mm (2.2”)

Weight

Gross ...................................................................... 2.0kg (4.4lb)

Net..........................................................................1.4kg (3.1lb)

Specifications Sensitivity.................................................................0.17mV to 7.6mV

Explained

The Sensitivity figure indicates the input voltage required to

achieve “rated” output (0.75V_RMS). This can be adjusted to suit

your cartridge by configuring the Gain setting of your SXV1.

Gain .................................................................................. 40dB to 73dB

The amount of amplification the preamplifier is asserting on the

input signal. Gain can be calculated by dividing the rated output

by the input sensitivity. User configurable via the DIP switches

provided.

Input Impedance..............................................................9W to 47kW

The resistance “load” that is presented to the source component

that is driving it. The Input Impedance can be set using the DIP

switches to meet the requirements of your cartridge.

Input Capacitance..................................................... 27pF to 830pF

The capacitive “load” that is presented to the source component

that is driving it. The Input Capacitance can be set using the DIP

switches to meet the requirements of your cartridge.

THD+N............................................... 0.01%, 1kHZ @ rated output

Total Harmonic Distortion + Noise is the percentage of output

signal which is made up of frequencies added due to harmonics

of the fundamental frequency and noise. By using low-noise

input circuitry and Class A amplification stages, Perreaux

engineers have kept this figure to a minimum.

Signal to Noise Ratio ......................................>80dB, Unweighted

The ratio of desired signal to noise signals in the output. Phono

reproduction is inherently susceptible to noise because of the

extremely low output voltage of the cartridge (100’s of µV in the

case of Moving Coil). This is why Perreaux engineers have

designed the SXV1 to maintain a low noise floor.

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Input Overload Margin ...............................................................18dB

The amount of headroom available over and above the Rated

Output.

RIAA Accuracy................................................±0.5dB, 20Hz–20kHz

This figure indicates how accurately the RIAA Equalisation

circuitry follows the RIAA specification across the frequency

range 20Hz to 20kHz. From 100Hz to 20kHz, the RIAA

accuracy of the SXV1 is as low as ±0.2dB.

Output Impedance.........................................................................47W

Output Impedance indicates the ability of the unit to drive the

Line Level Output. The low impedance of the SXV1 means that

it will drive any combination of cable configuration (length,

capacitance, etc.) and component impedance with ease whilst

maintaining signal integrity.

Rated Output........................................................................... 0.75V_RMS

This is the optimum operating level of the unit, offering the best

performance whilst allowing

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 SXV1.

Maximum Output ................................................ 6.0V_RMS(17.0V_p-p)

The maximum output level possible before the onset of clipping.

This figure indicates the extent of the dynamic range available

from the SXV1.

Wideband Frequency Response......................... 5Hz to 100kHz

Describes the frequency range at which the output signal remains

audible.

Operating Class.......................................................................... Class A

The driver circuitry and amplification stages all operate in Class

A, providing the best possible THD+N and Signal to Noise Ratio

specifications.

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Contact Details

For more information please contact your Perreaux dealer, or

contact:

Perreaux Industries Ltd

PO Box 47 413

Ponsonby

Auckland

New Zealand

Ph:

Fax:

+64 9 815 5452

+64 9 815 5981

E-mail: [email protected]

Internet: www.perreaux.com

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