Perreaux VP4 User manual

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Owner’s Manual V1.0
VP4

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TABLE OF CONTENTS
Thank you letter 3
I. Important safety instructions 3
II. Features 4
III. Installation 5
IV. Front panel 6
V. Rear panel / connections 7
VI. Setup 9
VII. Battery management 10
VIII. Troubleshooting 11
IX. Care and maintenance 12
X. Technicalspecications 13
XI. Limited warranty 14

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THANK YOU LETTER
Congratulations on your VP4 phono pre-amplier purchase!
From the entire team, we thank you for choosing a PERREAUX audio product.
You can expect many years of high-quality listening pleasure from this unit. The
following owner’s manual has been written to assist in the setup, operation and
care for your PERREAUX VP4 phono pre-amplier.
Please read thoroughly.
I. IMPORTANT SAFETY INSTRUCTIONS
Caution
• To reduce the risk of electric shock, do not remove the cover.
• No user serviceable parts inside.
• Refer servicing to qualied service personnel.
Warning
To reduce the risk of re or electric shock, do not expose this device to rain or
moisture. Shock hazard - do not open.
Mains Plugs
• This device is supplied with a non-rewireable mains plug for the intend-
ed country.
• Replacement mains leads can be obtained from your Perreaux dealer.
Should you need to change the plug please dispose of it carefully. A plug
with bared conductors is dangerous if engaged in a live socket.
• The Brown wire must be connected to the Live (Line) supply pin.
• The Blue wire must be connected to the Neutral supply pin.
• Please contact your dealer or a competent electrician if you are in any doubt.
• Refer to the rear of the product for mains voltage information.
This product is designed to comply with international directives on the Restric-
tion of Hazardous Substances (RoHS) in electronic equipment. The wheelie bin
logo indicates compliance and that these products must be recycled or pro-
cessed as according to these directives.

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II. FEATURES
Easy setup via App
The VP4 Phono preamplier comes complete with a powerful user App (iOS/
Android) to provide maximum exibility and versatility allowing precise adjust-
ment of the VP4 to match the gain and loading requirements of the user’s cho-
sen phono cartridge. During daily use, the APP can be used to toggle between
Black Mode and Charge, Mono and Stereo, or select the right RIAA curve to
match your taste.
BLACK Mode
When BLACK Mode is enabled, via App or control panel, the VP4 is completely
galvanically isolated from the AC Mains resulting in noise-free operation. This is
possible as the VP4 is equipped with an integrated lithium power cell that pro-
vides up to 30 hours playback on full battery charge, freed from the interference
and hum often prevalent in AC Mains powered ampliers. The lithium power
cell is of the highest quality providing the lowest possible internal impedance
(about 150 milliOhm), which ensures the most stable power supply under vary-
ing load.
Uncompromising Design
Cartridge settings are done by Bi-stable relays, which means that once cong-
ured these will no longer consume any current. This prevents any relay current
noise from bleeding into the signal path. An additional benet of our relay de-
sign is that it yields a better PCB layout which helps with signal integrity.
Dual connection
The VP4 Phono preamplier can accommodate the simultaneous connection
of two turntables. One pair of VP4 inputs can be assigned to use a Moving Mag-
net (MM) or high output Moving Coil cartridge (MC) and the second VP4 input
pair can be set up for a low output Moving Coil (MC) cartridge. Possible options
are: 1 x Moving Magnet (MM) turntable and 1 x low output Moving Coil (MC) turn-
table. 1 x High output Moving Coil (MC) turntable and 1 x low output Moving Coil
(MC) turntable.
Quick access control panel
The VP4 features a physical push button control panel capable of switching the
unit in and out of standby and toggling between Mono and Stereo, Black Mode
and Charge, or selecting either Moving Coil (MC) / Moving Magnet (MM) inputs.
Compatibility
The VP4 is compatible with both high / low output Moving Coil (MC) and Moving
Magnet (MM) phono cartridges. Most 78rpm cartridges are supported as well.
NormalRIAAorIECRIAAEqualisationProles
User-congurable, App (iOS/Android) provides the user with the ability to easily
select between normal RIAA and IEC RIAA equalisation proles.

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Low distortion
The VP4 generates a diminutive Total Harmonic Distortion (THD) gure of only
0.002% at 1KHZ @ rated output, providing a clean, clear and precise reproduc-
tion of vinyl recordings.
Balanced and unbalanced outputs
The VP4 phono preamplier features both balanced (XLR) and unbalanced
(RCA) analog audio output pairs. Both balanced and unbalanced output pairs
can be used simultaneously without interference or degradation of signal
performance.
Fully mirrored internal layout
The internal layout has been laid out in full mirror fashion to ensure maximum
channel separation and minimal system noise.
Mono capability
The VP4 Phono preamplier accepts signals from mono recordings, selected
from the front mounted touch panel or App.
III. INSTALLATION
Unpacking
The VP4 Vinyl Preamplier is supplied with the following accessories:
• Ultra-quiet power supply
• Quick Start Guide
We recommend you retain the packaging for reuse in case you need to trans-
port the unit at a later date.
Placement
Your VP4 Vinyl Preamplier should generally be placed close to your turntable
and preamplier keeping interconnect cabling short. Although when using bal-
anced interconnects, the amplier may be placed further away from the pre-
amplier without degrading the sound.
Ventilation Requirements
Your VP4 Vinyl Preamplier should be placed in a position that does not restrict
the airow around it. Do not place directly onto a carpeted surface as it will re-
duce air circulation and the heat will not dissipate as intended.
If the device is used in a cabinet, air must be able to ow through. An enclosed
cabinet will severely restrict heat dissipation. Ensure that nothing is placed
above or below the unit that might block or restrict the vents.

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Other Devices
Ideally, your VP4 Vinyl preamplier should not be located directly above or ad-
jacent to other heat-producing products such as radiators, other power ampli-
ers, etc. If multiple ampliers are being used and space is restricted, placing
them side by side is preferable to stacking.
It is advisable to position your VP4 Vinyl Preamplier close to your turntable and
away (and if possible, connected to a power socket on a different circuit) from
powerful electrical or electronic products such as TV sets, computers, cookers,
fridges etc. This will prevent the possibility of the strong electrical and electro-
magnetic emissions or interference given off by such devices adversely affect-
ing the performance of your preamplier.
IV. FRONT PANEL
1. Standby Button / BT status
2. Source Button (MM / MC)
3. Stereo/Mono Button
4. Charge/Black Button
1Standby Button / BT status The Standby Button switches the unit between On (in-
dicated by white LED) and Standby mode (indicated by
LED off). The unit should be left in Standby mode when
not in use to recharge the battery between listening
sessions.
Whenever the VP4 is connected to the Perreaux App in
your mobile device, the LED will turn blue.
2Source Button (MM / MC) The Source Buttons allow you to select the source com-
ponent that you wish to listen to; MM (indicated by
white LED) or MC (indicated by LED off).
POWER/BT
STANDBY MC STEREO BLACK
MM MONO CHARGE
On / Off
Charger
Chassis Earth
Right ChannelLeft Channel
Inputs Outputs
Unbalanced
Balanced Balanced
MC MM MC MM VP4 Vinyl Preamplifier
Inputs
31
1 6
2
2 3 4 4
4
5 3

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V. REAR PANEL / CONNECTIONS
1. Power On/Off
2. Charger socket
3. Phono Inputs
4. Balanced Outputs
5. Unbalanced Outputs
6. Phono Earth Terminal
3Stereo/Mono Button The Stereo/Mono Selection Button switches between
Mono (indicated by white LED) and stereo (indicated
by LED off) output to allow playback of mono LPs. A
press of the button will toggle the mono selection on
and off with the current selection conveniently stored
for each input.
4Charge/Black Button The Charge/Black Selection Button switches between
Charge Mode (indicated by white LED) and BLACK
Mode (indicated by LED off). For the best listening ex-
perience, enable BLACK Mode.
Note:
• When not in use, leave the VP4 in standby mode to
allow the battery to recharge; Charge LED will turn on.
• If the battery is full, Charge Mode will not be avail-
able and will revert back to Black Mode.
• If the battery is depleted, Charge Mode will be en-
abled automatically.
1Power On/Off The Power switch turns power to the unit on and off.
The switch should be left in the ON position when installed in
your cabinet or media rack. During transport or shipping, the
switch should be turned to OFF; this disengages the battery as
a precautionary measure.
POWER/BT
STANDBY MC STEREO BLACK
MM MONO CHARGE
On / Off
Charger
Chassis Earth
Right ChannelLeft Channel
Inputs Outputs
Unbalanced
Balanced Balanced
MC MM MC MM VP4 Vinyl Preamplifier
Inputs
31
1 6
2
2 3 4 4
4
5 3

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2Charger socket Use only the provided charger.
Note: If a non-Perreaux charger is used, warranty will be void.
3Phono Inputs The VP4 Vinyl preamplier has two separate input sections
specically designed to cater for moving magnet (MM) and
moving coil (MC) cartridges. Each set of phono inputs accept
standard unbalanced (RCA) analogue outputs from the corre-
sponding cartridge type. The output of the Mono cartridge can
be connected to either the right or left channel of your VP4
Vinyl Preamplier.
Note: High output MC cartridges can be connected to the MM
input if the MC input results in excessively high sound output.
4Balanced Outputs The balanced (XLR) outputs provide a balanced audio signal for
connection directly to a preamplier or integrated amplier.
The pin assignments of the balanced XLR output connectors
are:
Please refer to the owner’s manual of your preamplier to verify
that the pin assignments of the input connectors correspond
as above. If this is not the case, wire the cables so that the ap-
propriate VP4 Vinyl Preamplier output pin connects to the
equivalent preamplier input pin.
Note: The balanced outputs employ entirely separate buffer
stages to the unbalanced outputs, allowing both outputs to be
used simultaneously without degrading the performance of
each other.
5Unbalanced Outputs The unbalanced (RCA) outputs provide a single-ended audio
signal for connection directly to a preamplier or integrated
amplier.
Note: The unbalanced outputs employ entirely separate buffer
stages to the balanced outputs, allowing both outputs to be
used simultaneously without degrading the performance of
each other.
6Phono Earth Terminal The phono earth terminal connects to the earth lead from the
tonearm cable of your turntable, if required. If your turntable
does not have a separate earth lead it may be advisable to run
a wire from a grounded screw on the turntable to this terminal.
Turntables are very sensitive to hum and grounding the table
or cartridge to the VP4 Vinyl Preamplier can help reduce hum.
Pin 1: Shield
Pin 2: +ve signal (hot)
Pin 3: -ve signal (cold)
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3

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VI. SETUP
The VP4 gives you complete exibility in customising the Vinyl
preamplier to suit your cartridge, system and personal audio
preferences. This customisation is achieved by adjusting the load-
ing and gain values, mono or stereo selection and the ability to
switch between a normal or IEC RIAA equalisation curve on each
input.
In order to setup your prole/s (i.e. cartridge/s and preferred set-
tings), please download Perreaux’s App (Android / Apple) and fol-
low the instructions below:
1. Mono or Stereo
2. RIAA Curve: Two settings are available for RIAA Equalisation of
the VP4 Vinyl Preamplier to suit your recordings or personal
preference; Normal RIAA and IEC RIAA. The latter has a lower
volume for the low range which can help reduce unwanted
noise (e.g. helps lter out rumble from uneven records).
Normal RIAA Equalisation Curve:
IEC RIAA Equalisation Curve:
+20
+10
0
-10
-20
-30
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Frequency / Hertz
10 20 40 100 200 400 1k 2k 4k 10k 20k 40
k
dB
+20
+10
0
-10
-20
-30
4
Frequency / Hertz
10 20 40 100 200 400 1k 2k 4k 10k 20k 40
k
dB

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3. Cartridge Loading and Gain
a. Automatic: Click on & and select your cartridge from the database.
b. Manual: If your cartridge is not in the database, you can manually input
your cartridge loading (i.e. impedance / capacitance) and gain:
Loading:
MM Loading
47kΩ 1kΩ 10kΩ 22pF 47pF 100pF 220pF 470pF
MC Loading
47kΩ 10Ω 30Ω 100Ω 250Ω 500Ω 1kΩ 47pF
Note: When selecting the loading for your cartridge/s, it is possible to use
more than one option to produce a cumulative value, when doing this the
values will be added electrically (i.e. serial for capacitance and parallel for im-
pedance) to give the overall load value.
Gain:
Moving Magnet
Gain 36dB 40dB 44dB 48dB
Sensitivity 11.9mV 7.5mV 4.7mV 3.0mV
Moving Coil
Gain 56dB 60dB 64dB 68dB
Sensitivity 1.2mV 0.7mV 0.5mV 0.3mV
Note: If more than one setting falls within ±50% of your cartridge output volt-
age, the higher sensitivity conguration will result in greater dynamic range,
the lower will be less susceptible to clipping.
4. Save your prole by clicking on the diskette icon within the My Favourites
section.
The APP will allow you to store multiple proles in order to accommodate mul-
tiple cartridges and/or turntables. You can toggle between your saved proles
by clicking on the + button within the My Favourites section.
VII. BATTERY MANAGEMENT
The VP4 contains a lithium-ion battery pack that provides an ultra-clean and
noise-free isolated power supply. The preferred mode of operation is ‘BLACK’
where power is supplied by the battery.

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By default, the VP4 will charge during standby and not charge when active. Ide-
ally the user will leave the VP4 in Standby when not in use.
The VP4 can operate while being charged, resulting in a decrease in Signal to
Noise Ratio. Use the ‘CHARGE’ button to override the ‘BLACK’ mode.
If the battery becomes low during use, the ‘CHARGE’ light will ash as a warn-
ing. If the battery becomes at, the VP4 will remain active and begin charging.
In case the battery becomes at and no charger is connected, the VP4 will re-
main in Standby until the charger is connected. The ‘POWER’ light ashing RED
indicates this battery over-discharge protection.
Warnings:
When shipping the VP4, slide the rear main power switch OFF to internally dis-
connect the battery.
Do not substitute or modify the isolated charger power supply as this may dam-
age the VP4 and void the warranty.
VIII. TROUBLESHOOTING
There is no power
• Ensure the power supply is connected securely.
• Ensure the mains plug is fully inserted into the wall socket and is switched
on.
• Check fuse in the mains plug (Type G only).
Notes:
The VP4’s Black/Charge LED will ash when the battery is getting low and the
power supply is disconnected.
The VP4’s Standby LED will ash red when the battery has been depleted and
the power supply is disconnected. The VP4 can no longer be turned ON.
There is no sound
• Check that the input and output interconnects are properly connected to
the respective sockets. Conrm that the cartridge is correctly connected
and tted to the tone arm.
• Check that the turntable is turned on and that the tone arm is lowered onto
the record.
• Check that your preamplier and/or amplier are turned on and the correct
input is selected. Check that the volume on your preamplier is set to a suit-
able level and not muted.
• Check that your speakers are rmly connected to your amplier.

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There is no sound on one channel
• Check interconnects.
• Check the balance setting of your preamplier and/or amplier is set to the
middle.
There is a crackling noise coming from the speakers
• Check that the gain setting is congured correctly for your cartridge and not
too high. Try a lower gain setting to ensure output is not clipping.
• Check that the needle and record are free from dust and debris.
The output from the speakers is too quiet
• Check that the gain setting is congured correctly for your cartridge and not
too low. Try a higher gain setting until a suitable volume level is achieved.
• Check the cartridge loading settings are set correctly.
There is a loud buzz or hum
• Ensure no interconnects are loose or defective.
• Ensure the earth terminal from your turntable is solidly connected to the
earth binding post.
• Ensure that your turntable is located close to your Vinyl Preamplier and
away from possible sources of EM and/or RF interference, for example com-
puters, televisions etc.
IX. CARE AND MAINTENANCE
The VP4 has been designed to provide many years of trouble free enjoyment. It
is important to keep the exterior of the unit clean.
The front panel and cover feature an exquisite, high-quality paint nish. To re-
move nger marks and dirt, simply rub the surface with a CLEAN soft cloth (e.g.
microber). You can apply a coat of car paint wax (i.e. waterless wax detailer) to
restore the original look; apply the product to a cloth and not to the amplier.
If the dirt is not removed, use a small quantity of isopropyl alcohol on a rag and
rework the affected area.
Notes: Always switch the unit off and remove the power cord from the rear of
the amplier before attempting to clean your VP4 phono Preamplier.
• Never apply liquid directly to the amplier.
• Never use abrasives.
• Never rub in a circular motion.

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X. TECHNICAL SPECIFICATIONS
Inputs
Audio Inputs 2 Unbalanced (RCA) (selectable) pairs
Input Sensitivity
MM input
MC input
3.0mV to 11.9mV (selectable)
0.3mV to 1.2mV (selectable)
Gain:
MM input
MC input
36dB to 48dB (selectable)
56dB to 68dB (selectable)
Input Impedance:
MM input
MC input
1kΩ to 47kΩ (selectable)
10Ω to 47kΩ (selectable)
Input Capacitance:
MM input
MC input
22pF to 470pF (selectable)
47pF (selectable)
Input Overload Margin: 16dB
Outputs
Audio Outputs 1 Unbalanced (RCA) pair
1 Balanced (XLR) pair
Output Impedance:
Balanced:
Unbalanced:
30Ω
100Ω
Rated Output: 0.75Vrms
Maximum Output: 4.6Vrms (6.5Vpp)
Preamplier
Total Harmonic Distortion (THD+N):
Typically 20Hz to 20kHz 0.002%, 1kHz @ rated output
<0.05% @ rated output
RIAA Accuracy: ±0.5dB, 50Hz to 20kHz
Signal to Noise Ratio (un-weighted): 87dB (MM)
82dB (MC)
Dimensions
Width: 426mm (16.8”)
Depth: 344mm (13.5”)
Height: 82mm (3.2”)
Weight: 5.3kg (11.7lb)

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Battery / Charger
Battery Li-ion 3.2Ah
Charger power supply Input 90-264VAC
Output 24VDC, 1A (Class II only)
Disclaimer
Perreaux Audio reserves the right to change specications or features without notice.
Perreaux Audio will not assume any liability for errors being made by retailers, custom install-
ers, cabinet makers, or other end users based on information contained on this website.
XI. LIMITED WARRANTY
Perreaux Audio Ltd warrants this product to be free from defects in materials
and workmanship (subject to the terms set forth below). Perreaux Audio Ltd will
repair or replace (at Perreaux Audio Ltd’s option) this product or any defective
parts in this product. Warranty periods may vary from country to country. If in
doubt consult your dealer and ensure that you retain proof of purchase.
To obtain warranty service, please contact the Perreaux Audio Ltd authorised
dealer from which you purchased this product. If your dealer is not equipped
to perform the repair of your Perreaux Audio Ltd product, it can be returned by
your dealer to Perreaux Audio Ltd or an authorised Perreaux Audio Ltd service
agent. You will need to ship this product in either its original packaging or pack-
aging affording an equal degree of protection.
Proof of purchase in the form of a bill of sale or receipted invoice, which is ev-
idence that this product is within the warranty period, must be presented to
obtain warranty service.
This Warranty is invalid if (a) the factory-applied serial number has been altered
or removed from this product or (b) this product was not purchased from a
Perreaux Audio Ltd authorised dealer. You may call Perreaux Audio Ltd or your
local country Perreaux Audio Ltd distributor to conrm that you have an unal-
tered serial number and/or you made a purchase from a Perreaux Audio Ltd
authorised dealer.
This Warranty does not cover cosmetic damage or damage due to acts of God,
accident, misuse, abuse, negligence, commercial use, or modication of, or to
any part of, the product. This Warranty does not cover damage due to improp-
er operation, maintenance or installation, or attempted repair by anyone other
than Perreaux Audio Ltd or a Perreaux Audio Ltd dealer, or authorised service
agent which is authorised to do Perreaux Audio Ltd warranty work. Any unau-
thorised repairs will void this Warranty. This Warranty does not cover products
sold AS IS or WITH ALL FAULTS.
REPAIRS OR REPLACEMENTS AS PROVIDED UNDER THIS WARRANTY ARE
THE EXCLUSIVE REMEDY OF THE CONSUMER. PERREAUX AUDIO LTD SHALL
NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR

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BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN THIS PRODUCT. EXCEPT
TO THE EXTENT PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE AND IN
LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES WHATSOEVER IN-
CLUDING , BUT NOT LIMITED TO, THE WARRANTY OF MERCHANTABILITY AND
FITNESS FOR A PRACTICAL PURPOSE.
Some countries and US states do not allow the exclusion or limitation of inci-
dental or consequential damages or implied warranties so the above exclusions
may not apply to you. This Warranty gives you specic legal rights, and you may
have other statutory rights, which vary from state to state or country to country.
For any service, in or out of warranty, please contact your dealer.
Copyright and Acknowledgments
Copyright © 2023 PERREAUX AUDIO Ltd.
PERREAUX AUDIO Ltd., PO BOX 305, Mosgiel, Dunedin 9053, New Zealand.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted, in any form or by any means, electronic, me-
chanical, photocopying, recording, or otherwise, without the prior written per-
mission of the publisher. The content of this manual is furnished for information
use only, is subject to change without notice, and should not be construed as a
commitment by PERREAUX AUDIO Ltd.
PERREAUX AUDIO Ltd assumes no responsibility or liability for any errors or in-
accuracies that may appear in this Owner’s Manual.
All trademarks and registered trademarks are the property of their respective
owners. PERREAUX and the PERREAUX logo are trademarks of PERREAUX
AUDIO Ltd. All rights reserved.

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Perreaux Audio
PO Box 305, Mosgiel,
Dunedin 9053
New Zealand
[phone]