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CH P10 User Manual

Dual monaural twin-chassis phono-stage
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P10 Dual Monaural
Twin-Chassis Phono-Stage
User Manual

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Summary of Contents for CH P10

  • Page 1 P10 Dual Monaural Twin-Chassis Phono-Stage User Manual...
  • Page 2 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.

  • Page 3: Table Of Contents

    USB port Ethernet port 5.3 Local area network considerations Ground lift Inputs Outputs 5.7 AC Power How to configure and operate your P10 Control actions in normal mode To initiate operate or standby To select an input 6.4 To engage shortcuts (high pass filter, EQ curves, phase, etc.) 6.5 Switching the EQ curves 6.6 Selecting the Neumann pole 6.7...
  • Page 4 10 Phono-input optimization 10.1 Getting the best performance from the current-sensing inputs 10.2 Getting the best performance from the voltage-sensing inputs Using the Gain Wizard 12 Using the Loading Wizard 11.1 Interpreting the Loading Wizard display 13 Returning to factory defaults 14 Firmware update 14.1 Preparing the USB stick 14.2 Updating the unit’s firmware 14.3 Emergency firmware update procedure 15 Troubleshooting 16 Specifications P10 User Manual...

  • Page 5: Introduction

    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.

  • Page 6: Setting Up Your P10

    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.

  • Page 7: Mains Supply

    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.

  • Page 8: Maintenance And Service

    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 qualified technician if: The unit is not functioning properly.

  • Page 9: Installing Your P10 Components

    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.

  • Page 10: Placing Your P10, Connecting The Two Chassis Together And Installing The Spikes

    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.

  • Page 11: Positioning The P10 Chassis Components

    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.

  • Page 12: 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.

  • Page 13: Matching Your Cartridge To The Optimum Input

    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).

  • Page 14: The 50Khz 'Neumann Pole

    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.

  • Page 15: Power, Audio And Control Connections

    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: P10 audio unit rear panel connections (1) MC 1 XLR left input ...
  • Page 16 P10 power supply rear panel connections (1) Chassis ground terminal (4) IEC AC input (2) On/Off switch (5) Control DC Umbilical with multi-pin connector (red)  (3) Fuse holder and voltage selector (6) Analog DC Umbilical with multi-pin connector (blue) P10 User Manual...

  • Page 17: Usb Port

    5.1 USB port The USB port is not a digital audio input. It is dedicated to upgrading the firmware of the P10. Do not use it for any other purposes. For more information please refer to the firmware update instructions in the dedicated chapter of this manual.

  • Page 18: Outputs

    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.

  • Page 19: How To Configure And Operate Your P10

    The initial set up should be done using the front panel buttons and the menus shown on the display. Once configured for connection to and control by the CH-Control App, all parameters can be adjusted or re-set remotely. Button 1. Mute(NP) Operate/Standby (LP) Button 4.

  • Page 20: Control Actions In Normal Mode

    6.1 Control actions in normal mode In general use, the five 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. STEREO GLOBAL-FB H MM/MC 2 1.00 kU...

  • Page 21: Switching The Eq Curves

    EQ curves (and correct absolute phase) easily and quickly from the listening seat Using the CH-Control App – select the P10 icon on the left side of the screen and you will gain access to all of the unit’s parameters, including a menu of available curves.

  • Page 22: Navigating The Setup Menus

    Note that some parameters are input-specific, while others are global. For instance, you can individually adjust the input gain of each P10 input, while the feedback setup or absolute phase polarity are global parameters that affect operation of all inputs. All input-specific parameters are located in the INPUTS menu.

  • Page 23: Audio Settings Menu

    50kHz pole – a solution that has become known as the ’Neumann Pole’. The P10 makes it easy to select the 50kHz roll-off for any disc or curve on a record-by-record basis. Selecting the Neumann pole can have a significant sonic affect on some records and is well-worth experimenting with.

  • Page 24: Display Settings Menu

    7.5 Shortcut menu The P10 allows you to establish up to six shortcuts, taking you directly to almost any parameter in any menu. The P10 is preprogrammed with the High Pass Filter and EQ curves (if available) as shortcuts one and two. After scrolling through the defined shortcuts (you can set a total of six different shortcuts), the next screen that the P10 displays is the entry port to the P10 menu, titled Detailed Setup.

  • Page 25: Network Menu

    If Yes is selected, the P10 will enter standby mode when it receives a Power Off command from the LAN. It will remain on if No is selected. This is useful if you want to keep your P10 on even when you turn off the rest of your system.

  • Page 26: The Ch-Control App

    IR remote Pair IR remote control: By default any P10 will respond to a command sent by any P10 remote control. In some situations, this code can be identical to the one of another appliance. Pairing a specific remote control with a specific P10 allows them to communicate on a private channel.

  • Page 27: Phono-Input Optimization

    10.2 Getting the best performance from the voltage-sensing inputs If your cartridge is better suited to the voltage-sensing inputs of the P10, then you will need to adjust both the gain and impedance loading values. You should start by setting the impedance loading, as this affects the output level of the cartridge.

  • Page 28: Using The Gain Wizard

    Select Gain Wizard in the Input’s menu. Start the wizard using the Middle/OK button on the P10 audio unit. The screen will show the instructions outlined above. Start the record playing and start the acquisition process by pressing the Middle/OK button again.
  • Page 29 The on-screen instructions will ask you to play Side 1 of the Set-up record and once it is playing, press the Middle/OK button to start the acquisition process. This will take a short time as the Loading Wizard measures the frequency response of the cartridge at 20 different points within the loading range. P10 User Manual...
  • Page 30 MM/MC LOADING WIZARD Place the CH calibration record on your turntableconnected to the P10 input MM/MC 2. Play the record, side 1 (noise) at 45 RPM Complete the gain wizard. Press OK when the record is playing or CANCEL to abort.

  • Page 31: Interpreting The Loading Wizard Display

    Due to the extremely fine range of loading adjustment available with the P10, once you have set the load using the Loading Wizard, it is possible to further refine it over time by listening.

  • Page 32: Returning To Factory Defaults

    13 Returning to factory defaults Please note that if you get lost in the menus, or you simply want to start over, your P10 can be reset to Factory default settings by using the RESET ALL SETTING item of the FACTORY SETTING menu. For a list of Factory default settings, please refer to the Specifications section.

  • Page 33: Firmware Update

    14.1 Preparing the USB stick The firmware of all the CH Precision units can be updated using the USB port located at the back of the unit. Before starting the firmware update, it is necessary to load a USB stick with files containing the new firmware.
  • Page 34 If the emergency firmware update procedure fails, try the same procedure again using a different USB stick. If the failure persists, turn off your unit and contact your authorized dealer for assistance. Note: The emergency firmware update procedure lasts 5-10 minutes, do NOT interrupt it! P10 User Manual...

  • Page 35: Troubleshooting

    P10 is not fully off. If any power cable gets disconnected by mistake while your P10 is on, just let it safely automatically turn off. Do not try to interfere with the emergency power down procedure of the device. Then wait a couple of minutes before plugging the umbilical power cables back.

  • Page 36: Specifications

    16 Specifications General  User control Five tactile push buttons,  CH Control Android app  Display          800×480 24bits RGB AMOLED  Power supply             Selectable 100V, 115V or 230V AC, 47Hz to 63Hz  Power consumption (Standby)    < 1W  Power consumption (Normal operation) Max 400W ...
  • Page 37 THD: unmeasurable (below noise floor) for MM/MC voltage input, gain > 50dB THD: unmeasurable (below noise floor) for MC current input, any gain Remote control Remote control type                                    Infrared. Uses RC5 codes. Range: 10m (line of sight)  Remote control batteries                           2x AAA type  P10 User Manual...
  • Page 38 Design and Specifications are subject to change without notice. Weight and dimensions are approximate. Illustrations are informative only and may differ from the actual production model. Enclosure designed by Momentum Industrial Design – www.momentum.ch FCC-Notice Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

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