CH P10 User manual
P10 Dual Monaural
Twin-Chassis Phono-Stage
User Manual
Dear Valued Customer,
We are honored that you chose the P10 Dual Monaural Phono-stage.
Our team has made every effort in the design and manufacture of
this top quality versatile, past and future-proof product and is proud
to present it to you. We hope your P10 phono-stage will bring you
uncountable hours of emotional connection with your record collection.
But before you embark on your musical journey, we kindly request your
attention to the information contained in this manual. The P10, as you
will discover in the following pages, is a Swiss precision product designed
for ultimate performance and exibility. However, delivering that ground
breaking sonic and musical excellence requires your unit to be setup and
operated correctly. That is what this manual is all about. If you have any
questions or require assistance, please don’t hesitate to contact your
authorized dealer.
Once properly installed and congured, we are condent that you will
enjoy your P10 phono-stage for many years.
The Concert has just begun...
Cossy F.
Heeb T.
P10 User Manual 2
Table of contents
1 Introduction
1.1 Global audio options 5
1.2 Input-specicoptions 5
1.3 Moreusercongurableoptions 5
1.4 The purpose of this manual 5
2 Setting up your P10
2.1 Safety notice 6
2.2 Changingfusesandoperatingvoltage 6
2.3 Mains supply 7
2.4 Packagingandfuturetransport 7
2.5 Cleaning 7
2.6 Maintenanceandservice 8
3 Installing your P10 components
3.1 Unpacking 9
3.2 Packagecontents 9
3.3 PlacingyourP10,connectingthetwochassistogetherandinstallingthespikes 10
3.4 PositioningtheP10chassiscomponents 11
3.5 StackingtheP10(ornot) 12
4 Matching your cartridge to the optimum input
4.1 MC1andMC2currentsensinginputs 13
4.2 MM/MC1andMM/MC2voltagesensinginputs 13
4.3 The50kHz‘NeumannPole’ 14
5 Power, audio and control connections 15
5.1 USB port 17
5.2 Ethernet port 17
5.3 Localareanetworkconsiderations 17
5.4 Ground lift 17
5.5 Inputs 17
5.6 Outputs 18
5.7 ACPower 19
6 How to congure and operate your P10 19
6.1 Control actions in normal mode 20
6.2 To initiate operate or standby 20
6.3 To select an input 20
6.4 Toengageshortcuts(highpasslter,EQcurves,phase,etc.) 20
6.5 SwitchingtheEQcurves 21
6.6 SelectingtheNeumannpole 21
6.7 Selectingtheanti-rumblehigh-passlter 21
6.8 To enter menu mode 21
7 Navigating the set-up menus 22
7.1 Menu options 22
7.2 AudioSettingsmenu 23
7.3 Input-specicsettingsmenu 23
7.4 Displaysettingsmenu 24
7.5 Shortcut menu 24
7.6 Networkmenu 25
7.7 Factorysettingsmenu 25
P10 User Manual 3
P10 User Manual 4
8 The CH-Control App 26
9 Handheld IR remote control 26
9.1 Batteries 26
10 Phono-input optimization
10.1 Gettingthebestperformancefromthecurrent-sensinginputs 27
10.2 Gettingthebestperformancefromthevoltage-sensinginputs 27
11 Using the Gain Wizard 28
12 Using the Loading Wizard 28
11.1 InterpretingtheLoadingWizarddisplay 31
13 Returning to factory defaults 32
14 Firmware update
14.1 PreparingtheUSBstick 33
14.2 Updatingtheunit’srmware 33
14.3 Emergencyrmwareupdateprocedure 33
15 Troubleshooting 35
16 Specications 36
1 Introduction
CH products are designed and manufactured in Switzerland by CH Precision Sàrl. We use fully discrete, fully
balanced, fully complementary, ultra-short signal path circuits – but we combine them with sophisticated
software control, monitoring, protection and set-up aids to ensure the highest possible levels of performance,
operational consistency, ease of use and versatility. In the case of the P10, as the cartridge generates a single-
ended signal, the output stage of the P10 is fully balanced, but not the overall signal path.
Your P10 offers a number of operational features and set-up aids (the Gain and Loading Wizards) that are
unique and probably unfamiliar. For that reason it is essential that you fully understand every aspect of the
P10’s operation if you are to enjoy its maximum possible performance and ease of use.
1.1 Global audio options
These settings will affect the performance of all inputs.
Mute: muted or unmuted
Absolute phase polarity: In phase or out of phase
Phono EQ curve: RIAA (with choice of EMI, Columbia, Decca, Teldec/DGG, NAB, Capitol or Philips with optional
EQ cards). Neumann Pole (On/Off for any curve)
Channel mode: stereo or mono (n/a to 4-box P10)
Global or local feedback
1.2 Input-specic options
Input conguration: normal or disabled
Gain: set gain level for input
Impedance: set input impedance for MM/MC inputs
Filters: none or high-pass (rumble)
Name: designate a name or identity to each input or connected cartridge
1.3 More user congurable options
Display: front LED on/off. Color, brightness and auto off for main display.
Dene shortcut functions: select number of and designate shortcuts
Network conguration
Firmware version and update
1.4 The purpose of this manual
This manual will lead you through each step of the installation and set up procedure, in a clear and logical sequence.
Although the operation and options might seem complex, they will quickly become second nature.But because of
the sheer range of options available it is easy to overlook something unless you approach set up and conguration
in a systematic fashion. If you take the time to follow the manual, it will ensure that you become completely
familiar with the P10’s many options and that your phono-stage delivers the best possible performance.
P10 User Manual 5
2 Setting up your P10
2.1 Safety notice
Like any piece of sensitive audio electronics, there are certain precautions that you should take in handling and
installing your CH Precision P10 in order to protect yourself, your new equipment and your system.
Always handle with care. The P10 phono-stage components are heavy, so have someone to help you when
unpacking, re-packing or moving them around.
Install both chassis of your P10 phono-stage on strong, stable supports capable of holding their weight. It is
best to clear/prepare the supporting surfaces in advance.
Do not install your P10 phono-stage near water. Do not expose the units to any kind of liquid.
Do not install them under direct sunlight or near any heat source, such as a radiator or other apparatus
generating heat.
Do not install them in a conned space and make sure there is sufcient ventilation and airow around and
beneath each unit.
Do not operate them under high ambient temperature (>40°C) or in extremely high humidity conditions
(>85%) such as humid cellars. Only use options and accessories specied or recommended by CH Precision.
Do not open the units or try to service them yourself. Always refer to a qualied technician for service,
maintenance or upgrades. Failure to do so will void the unit’s warranty
In Denmark: Apparatets stikprop skal tilsluttes en stikkontakt med jord som giver forbindelse til stikproppens jord.
In Finland: Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan.
In Norway: Apparatet må tilkoples jordet stikkontakt.
In Sweden: Apparaten skall anslutas till jordat uttag.
2.2 Changing fuses and operating voltage
To change the fuses, switch off the P10 and remove the power cable.
The fuse holder is located below the IEC power input on the Power Supply chassis.
See diagram on page 16 (Arrow 3)
Fuse values vary with operating voltage:
230VAC – Fuse A : T50mA/250Vac. Fuse B : T2.5A/250Vac
100/115VAC – Fuse A : T100mA/250Vac. Fuse B : T5A/250Vac
Never change the selectable voltage during operation.
To change operating voltage, switch off the P10 and remove
the power cable.
Before changing the operating voltage rst check the local voltage.
P10 User Manual 6
B A
P10 User Manual 7
To change the operating voltage, remove the
fuse holder from the P10 Power Supply chassis.
Fuse A (see picture above) is located in a sleeve
that can be slid out of the body of the fuse
holder: by turning the sleeve and reinserting it,
the orientation of the contact pins is altered,
switching the operating voltage. The selected
voltage will appear in the small window in the
base of the fuse holder.
Make sure that if required, you change the
fuse values to match the new voltage (as above).
You can now reinsert the fuse holder.
2.3 Mains supply
Make sure to use a fully grounded AC power cord (one with three terminals – live, neutral and ground). Make
sure that the mains voltage selection of the unit matches your local mains voltage.
Do not connect your P10 phono-stage power supply unit to the AC supply/wall socket before connecting the
umbilicals between the power supply unit and audio chassis.
We recommend disconnecting the P10 from the AC supply in the following cases:
When making connections (we also recommend disconnecting the rest of the system from the AC supply
when installing signal and speaker cables).
When cleaning.
During thunderstorms.
When left unused for a long period.
2.4 Packaging and future transport
The P10 phono-stage must always be packed in its original carton for transportation. Doing so will ensure the
optimal level of protection for your unit. Therefore, keep all the packaging material in a dry and clean place for
future use.
Finally we recommend removal of the adjustable spikes, putting them into the holes provided in the packaging
foam for transportation. Indeed, vibrations during transport may cause the adjustment spikes to move from
their fully retracted position. There is then a risk of scratching the supporting surface when re-installing the unit.
2.5 Cleaning
Use a soft, dry towel or cloth for cleaning. Never use any solvent or liquids as they may damage the surface
treatment or penetrate inside the units.
The window should only be cleaned with a micro-ber cloth, like those used for cleaning glasses, as the
plexiglass window is easily scratched, even by paper-tissues.
P10 User Manual 8
2.6 Maintenance and service
The P10 phono-stage contains no user serviceable parts. Do not try to open, modify or repair your P10 by
yourself. This will void any warranty. Your P10 phono-stage should be checked by a qualied technician if:
The unit is not functioning properly.
The mains cable, the power cord receptacle, the umbilical cables or their receptacles are damaged.
The unit shows signs of having been dropped or presents external damage.
The P10 phono-stage has been exposed to liquids (such as rain) or unknown substances.
P10 User Manual 9
3 Installing your P10 components
3.1 Unpacking
The P10’s cartons are large and contain both the components and all of their accessories. You will need an open,
preferably carpeted area in which to unpack them. Please also ensure that the rack or support space on which
the P10 will be placed has been cleared and cleaned before you start. At this point it is also worth ensuring that
the connectors on any interconnect cables are cleaned and that the power to your system is turned off. Each
carton consists of an inner box and outer sleeve. It is easiest to empty one box at a time, before reassembling it
to save space.
Once you open the inner box, remove the top layer of white foam packaging. Inside you will see the component
chassis and various accessories.
With a helper, carefully lift the P10 component out of the box and place it to one side. Then carefully remove the
plastic bag in which it is sealed.
Remove the small, brown Accessory Pack and place it with its unit. Also remove the power cord and suction cup
(if present) and the four, black, levelling/grounding spikes that are set into the foam.
We recommend storing the Accessory Packs in a readily accessible place, so don’t put them back in the cartons
with the plastic bags when resealing them.
3.2 Package contents
Your P10 should arrive in two substantial cartons. Once unpacked these cartons and packaging materials
should be stored safely in case you ever need to transport your units. When moving or transporting the P10
units, this should always be done in the original packaging.
The audio chassis carton should contain:
The P10 Phono-stage
Four composite titanium/polymer spikes
A suction cup (used to remove the four top covers)
An accessory box containing:
–an infrared remote control
–a spike adjustment screwdriver
– a Torx T-10 screwdriver
–four support discs
–four smaller, dimpled stacking caps
– a USB stick containing the latest CH Precision rmware
P10 User Manual 10
The power supply chassis carton should contain:
The P10 power supply with two captive umbilical cables
A power cord
Four composite titanium/polymer spikes
An accessory box containing:
–four support discs
–four smaller, dimpled stacking caps
In case of damage to either chassis, or missing components, please contact your authorized dealer
immediately. If your P10 units are still very cold from transport, please let them warm to room temperature
in order to avoid condensation developing inside them.
3.3 Placing your P10, connecting the two chassis together and installing
the spikes
Before positioning your P10 units, it is worth taking the time to make a few preliminary decisions.
Decide how many (and which) inputs and what connections you will use. Familiarizing yourself with (and
making a note of) their position on the rear of the audio chassis will be extremely useful when you come to
actually make connections and allocate/congure those inputs.
Decide whether you will use the CH Precision supplied levelling / grounding spikes. If an alternative system is to
be used, please note that the lower part of each foot that is held by three screws can be removed to provide an
easier access to the M10×1.5 central thread where a third-party system can be attached. Please note that the CH
Precision casework is designed to support weight and ground energy in the corners only. If you choose to use
third party supports they should be positioned in the same location as the unit’s original feet.
We do not recommend stacking components except using the supplied spikes and caps.
If you do plan to use the CH spikes, use the blue suction cup to lift/remove the four circular covers in the top
plate of each unit. Gently insert the titanium composite spikes into each exposed shaft and use the short red
screwdriver to turn them enough to engage the threads at the bottom of each spike. Each internal thread
is coated with a thin layer of grease during assembly to prevent galling between it and the titanium spike.
Adding an extra layer of grease or even better, CopaSlip to the threads will ensure proper operation and ease
set up.
Do not screw the spikes in too far at this point or they will protrude from the feet and potentially damage the
supporting surface. Do not replace the top-caps yet.
Check that the voltage selector on the P10 power supply unit is set to the correct local voltage and that the
power switch is off (the 0 side depressed).
Now you are ready to place the units. Each chassis is heavy and the feet are tted with rubber rings to
protect the supporting surface, which makes it hard to slide the units. Having a partner to lift and help place
each chassis will make things considerably easier, as will placing the feet on the support discs (see below).
Place the power supply rst, carefully planning the path to be taken by the two umbilicals before positioning
the unit.
P10 User Manual 11
Gently pull the umbilicals into position to be connected to the audio chassis, noting which is which thanks to
the color-coded identication rings.
Move the audio unit as close as possible to the rack/support so that you can thread the umbilicals through
the rack (if necessary) before moving it back into position. Connect the left umbilical to the left input
socket and the right umbilical to the right input socket. The plugs on the umbilicals will only connect in one
position. Turn the connector in the socket until you feel it engage and then gently push it home until you
hear a locking sound.
DO NOT force the umbilical connectors into the sockets. This will risk damaging the connecting pins and
disable your P10.
If you feel resistance when you insert the connector, check that you are trying to connect the proper pairs
of umbilicals and connectors together. Please note that the two connectors have the same diameter but a
different number of pins, so it is not possible to plug an umbilical into the wrong socket.
3.4 Positioning the P10 chassis components
Each P10 chassis is supplied with a set of four support discs. These have a groove machined in the upper face
that ts over the rubber ring in the underside of each foot. Lift each corner of the chassis in turn and position
the disc beneath each foot. The groove that interfaces with the rubber ring will ensure that the footer disc
stays in place if you slide the unit.
As well as making the units easier to position, the support discs can also offer a superior interface between
the grounding spikes and the supporting surface. The spikes are designed to drain internally generated
energy away from sensitive circuitry and into a dispersive support structure, but if the supporting surface
is extremely hard or forms an impedance mismatch with the spike tips, the material and footprint of the
support discs can function as a lossy mechanical buffer, easing the passage of mechanical energy out of the
unit. As a rule, the support discs work well with very hard surfaces, but results will vary with system and
supporting surface. Once set up and warmed up, compare the sound of the unit(s) with and without the discs
in place.
Use the red screwdriver to wind down each of the four spikes until they touch the surface (or disc)
underneath. You will feel a slight resistance due to the chassis’ weight. Then turn each spike by the same
amount, for instance one more full turn. This should ensure that the load is evenly applied on all four spikes.
It is worth using a spirit level to ensure that the P10 units are perfectly level. If they are not, adjust the spikes
with the screwdriver. Once this is done, simply check that all four spikes show the same resistance to turning.
This means that the spikes are rigidly coupled to the supporting surface and equally loaded.
Replace the top caps. Their magnetic coupling will hold them in place.
P10 User Manual 12
P10
audio unit
P10
power
supply
cosmetic
caps
stacking
caps
support
discs
Stacking the P10 (or not)
3.5 Stacking the P10 (or not)
Also included in the accessory packs is a set of small, dimpled stacking caps for each unit. These polymer
inserts allow owners to stack the P10 units on top of each other, or on other CH components. However, this
will inevitably compromise performance and should only be done when space is at an absolute premium.
Stacking these units is also not advised because of the very sensitive nature of input signals that the P10
audio unit handles: Because it is essentially a magnetic eld amplier, the P10 audio unit and the cables
linking the cartridge to the phono-stage must be kept as far as possible from any magnetic eld. So leaving
enough room between the P10 audio unit and its power supply, or any device with transformers of electronic
circuits is highly recommended in order to achieve the best possible performance.
The optimum support for any CH unit is to mechanically ground it to a stable support surface that can absorb
and dissipate mechanical energy, either using the supplied spikes or an after-market solution, as described
above. But if lack of space makes it absolutely essential to stack CH components, then using the supplied
spikes and stacking caps will provide the best possible solution.
The stacking caps simply screw into the top of the spike wells, taking the place of the cosmetic caps. When
a second unit is stood on top of them, its spikes can be wound down into the wells in the caps, providing a
stable, safe and easily managed stacking option that improves mechanical termination and satises aesthetic
and practical considerations. Make sure that you retain the cosmetic top caps and store them safely as you
may well require them in the future if (or rather, when) your system or circumstances change.
P10 User Manual 13
4 Matching your cartridge to the optimum input
Your P10 offers a choice of inputs and input types: inputs MC1 and MC2 operate in current mode.; inputs MM/
MC1 and MM/MC2 operate in the more common voltage mode. Each input can be individually congured to
match the connected cartridge. Each input type suits cartridges with different electrical characteristics.
Please note that each P10 input can be connected to either an RCA or an XLR terminated tonearm. XLR pin 2
and 3 are connected to the hot and cold leads of the cartridge’s coil (internally connected to the RCA pin and
ring, respectively), while pin 1 is for shielding purposes (connected by default to analog ground in the P10).
Any unused P10 input(s) can be turned off. This will make input scrolling and selection easier, while reducing
power consumption as the unused input module will not be powered in this case. To turn off an input, please
refer to chapter 7.3 (input specic options).
4.1 MC1 and MC2 current sensing inputs
A current mode input reads the current generated by the cartridge (not its voltage). Current mode inputs are
usually dedicated to MC cartridges but also work well with the (very few) low-output MM cartridges available,
such as those from SoundSmith. The current from the cartridge is amplied by a discrete transistor based
trans-impedance amplier. Using a current mode input provides a superior signal to noise ratio compared to
a conventional voltage input, better immunity and by its very nature, no requirement to adjust and optimize
impedance. The gain of the trans-impedance amplier is intrinsically dependent on the internal impedance of
the cartridge. The lower the internal impedance of the cartridge, the higher the gain that results. For this reason,
your P10 provides multiple gain settings, adjustable in 3dB steps. Although a current mode input will work with
a cartridge whose internal impedance measures 50Ω, this is not an appropriate match. In general, the current
mode inputs will be ideal for cartridges with an internal impedance of below 10Ω. With a cartridge between 10Ω
and 20Ωinternal impedance then you should compare performance between the current and voltage mode
inputs. Cartridges with an internal impedance above 20Ωwill normally give their best performance with the
voltage mode inputs – but as always, experimentation is the order of the day.
In order to help users achieve the optimum gain value and signal to noise performance, CH Precision provides
the Gain Wizard, a process that measures the signal-to-noise performance of the system (cartridge and P10
input) in conjunction with the supplied 7” 45 RPM disc.
4.2 MM/MC1 and MM/MC2 voltage sensing inputs
A voltage mode input reads the voltage generated by the cartridge. The voltage mode inputs can be used with
any MM or MC cartridges, as well as with step-up transformers. The cartridge output signal is amplied by a
discrete, solid-state voltage amplier. To accommodate the widest range of partnering cartridges and SUTs,
gain can be adjusted from +41 to +74dB (+6dB on balanced outputs) in 3dB steps. Each voltage mode input is
tted with a user-variable resistive load (variable between 5Ωand 100 kΩ), allowing users to adjust cartridge
impedance loading to provide the optimum (attest) frequency response, free of high frequency ringing.
In order to help users achieve the optimum impedance load value and gain for each input, in addition to
the Gain Wizard (detailed above) CH Precision provides the Loading Wizard, a process that measures the
frequency response of the system (cartridge, cables and P10 input) and displays the results of different
loading values as a series of graphs showing the atness of the system.
P10 User Manual 14
4.3 The 50kHz ‘Neumann Pole’
In addition to the two zeros (turnover frequencies) and the pole normalized in the RIAA (or other)
pre-emphasis curve used in cutting records, in practice production plants had to stop the ever-increasing
gain at high-frequency above the audio band in order to prevent cutting equipment from overheating and
cutting heads from ringing. This was done in various ways, but generally involved adding a second, high
frequency pole to roll off the extreme high end – normally at around 50kHz. It was a technique used by
various different lathe manufacturers, but became known as the “Neumann pole”. Adding the 50kHz pole
to the pre-emphasis curve suggests the use of a corresponding 50kHz zero in the de-emphasis/replay curve
– often referred to as the “enhanced-RIAA” or eRIAA curve. The P10 allows users to add the 50kHz zero for
any disc or curve on a record-by-record basis.
P10 User Manual 15
5 Power, audio and control connections
With the two (or four) P10 units placed and levelled, you are now ready to connect them to your system and the
AC power. The rear panel layout is shown below:
(1) MC 1 XLR left input
(2) MC 1 RCA left input
(3) MC 2 RCA left input
(4) MC 2 XLR left input
(5) MM/MC 1 XLR left input
(6) MM/MC 1 RCA left input
(7) MM/MC 2 RCA left input
(8) MM/MC 2 XLR left input
(9) XLR left output
(10) RCA left output
(11) BNC left output
(12) Ethernet port for network connection/Control App
(13) Ground lift switch
(14) Multi pin socket for analog PSU connection (blue)
(15) Multi pin socket for control PSU connection (red)
(16) Signal ground connection
(17) Chassis ground connection
(18) USB port for rmware upgrades only
(19) RCA right output
(20) BNC right output
(21) XLR right output
(22) MM/MC 2 XLR right input
(23) MM/MC 2 RCA right input
(24) MM/MC 1 RCA right input
(25) MM/MC 1 XLR right input
(26) MC 2 XLR right input
(27) MC 2 RCA right input
(28) MC 1 RCA right input
(29) MC 1 XLR right input
P10 audio unit rear panel connections
15141312114
24 19 16
2
28
1098765
26 25 23 22 21 18 1720
3
27
1
29
You will note that as well as the array of conventional inputs and outputs, there are a number of other sockets
available which are used for control and update functions.
P10 User Manual 16
(1) Chassis ground terminal
(2) On/Off switch
(3) Fuse holder and voltage selector
(4) IEC AC input
(5) Control DC Umbilical with multi-pin connector (red)
(6) Analog DC Umbilical with multi-pin connector (blue)
P10 power supply rear panel connections
6 5 34
21
P10 User Manual 17
5.1 USB port
The USB port is not a digital audio input. It is dedicated to upgrading the rmware of the P10. Do not use
it for any other purposes. For more information please refer to the rmware update instructions in the
dedicated chapter of this manual.
5.2 Ethernet port
The Ethernet port is used for two closely related functions.
Connection to a local network router allows control of the P10, its functions and conguration through the CH
Control App, loaded on an Android device.
In True Monaural conguration (standard or extended) the connection to an Ethernet network allows the two
separate audio chassis to communicate in a Master/Client relationship, so that control settings track each
other. One unit should be set as ‘Master’ and the other as ‘Client’, in the ‘Network / Role’ menu.
In a situation where a four–chassis P10 is not connected to a network, an RJ45 Mirror lead (NOT a standard
RJ45 lead) connected between the two audio units will allow control synchronicity. In this case, select ‘Direct-
Link’ in the ‘Network / IP Settings’ menu of both audio units.
5.3 Local area network considerations
We recommend that you construct a dedicated local network for both system control functions and music
streaming. It can be operated from locally located network switches, galvanically isolated from your
main household network using affordable and readily available optical converters. This will improve the
responsiveness of your setup, and keep as much high frequency noise out of your audio system’s ground
plane as possible.
5.4 Ground lift
The grounding switch allows owners to combine or separate the signal and chassis ground. In any audio
system, it is generally best to combine the signal and chassis grounds at one point only, usually in the
preamplier, in order to break ground loops and kill potential hum.
5.5 Inputs
Make sure that the P10 is switched off and disconnected from the wall socket.
Connect each set of tonearm leads to the input you have chosen. On a Dual Monaural P10 the left inputs are
the top sockets and the right inputs are the lower ones. In a four-chassis, True Monaural (or True Monaural
Extended) set up, you will connect the left inputs to one chassis and the right inputs to the other. You have
four sets of inputs (and twice as many in the four- chassis, Extended conguration).
The 4mm banana plug with a buttery nut allows for multiple ground connections. It can be removed from
the rear of the P10 for easier connection of multiple grounds and selection of the grounding point (chassis or
signal ground).
P10 User Manual 18
The inputs are all numbered. When making connections, ensure that you note which turntable or tonearm/
cartridge is connected to which input, so that you can identify each one correctly in the conguration menu.
You can later name each P10 input to identify the connected turntable or tonearm/cartridge and hide/disable
the ones you won’t use for now.
5.6 Outputs
The P10 is equipped with one pair of balanced XLR, RCA and 50ΩBNC outputs. This allows for connection to
all standard line-stages.
If you need additional outputs (for instance, to use one set of turntables to run two separate systems) then
the four-chassis extended conguration will provide twice the number.
5.7 AC Power
With all the signal inputs and outputs connected, you can now connect the IEC power cord to the input socket
on the P10 power supply and switch the units on. First switch on the rocker switch on the rear of the power
supply unit. You should see the red bar in the CH logo in the top-left corner of each front panel illuminate.
Your P10 is now in standby mode and ready to be turned on and congured.
P10 User Manual 19
6 How to congure and operate your P10
The P10 phono-stage can be operated in any of three different ways:
From the front-panel buttons
From the CH-Control App (Android only)
From the supplied IR remote control (for switching basic settings only)
The initial set up should be done using the front panel buttons and the menus shown on the display. Once
congured for connection to and control by the CH-Control App, all parameters can be adjusted or re-set remotely.
In use, your P10 has two operating modes: Normal mode and Menu mode.
Button 1. Mute(NP) Operate/Standby (LP)
Button 2. Up
Button 3. Next/OK
Button 4. Down
Button 5. Cancel/Exit
1
2
3
4
5
P10 User Manual 20
6.1 Control actions in normal mode
In general use, the ve front panel buttons can be used to switch the P10 from standby to operate, select inputs,
alter operating parameters, select short-cut functions or enter the Menu mode.
6.2 To initiate operate or standby
Push the top button to turn the unit on from standby. Push it for three seconds (long push, “LP” in this manual)
to turn the P10 back to standby.
6.3 To select an input
Press the Up or Down buttons to cycle through the inputs.
6.4 To engage shortcuts (high pass lter, EQ curves, phase, etc.)
Short push on the Middle/OK button to cycle through shortcut options. Display will show selected shortcut
function: Use Up and Down buttons to alter parameter value. Note that the current input is automatically pre-
selected for all input-specic parameters that are congured through a shortcut.
STEREO
e-RIAA 1.00 kU
GLOBAL-FB H7
MM/MC 2
Normal mode display elements
7
6
1 2 3 4
5
(1) Operating mode (in dual monaural) or handled
channel (in true monaural) or
(2) Indicates if output stage uses global feedback
(GLOBAL-FB) or local feedback (nothing is displayed
in this case).
(3) Absolute phase polarity indication. If the (H)
symbol is present, polarity is reversed.
(4) Mute or Mono. If the 7present, the P10 output is
muted. A single dot in a square will indicate that the P10
is running in mono mode, summing L and R channels.
(5) Impedance setting for MM/MC inputs.
(6) Selected record replay EQ curve. Shows use
of Neumann pole (e- prex) and selected curve if
optional curves are installed. Whole display also
changes color (auto or user selectable shades) to
indicate alternative curves.
(7) Input source name. Each input source can be
renamed through the P10’s menu.
Table of contents
