5.2 Ground connection
The back panel of the P1 unit is fitted with 4mm banana sockets. The black sockets are connected to audio ground while the yellow
and green socket is connected to mains earth. These sockets can be used to connect the ground of the turntable. Experimentation
will define which socket to use. A couple of banana plugs are provided with the P1 unit. The ground lead from the turntable can be
screwed to the banana plugs which in turns can be inserted into the back panel sockets.
5.3 X1 optional External Power Supply connector
This connector allows to connect the X1External Power Supply unit. A custom made interconnect cable delivered with the X1 unit
plugs into this connector, allowing to reach the next step in power supply regulation. The P1 unit detects at power up that the X1 is
connected and leaves its mains section off and uses to the X1 power supplies instead. Please note that the P1 AC mains socket must
still remain plugged to the AC wall socket.
5.4 Ethernet port
The Ethernet port is used in the following instances:
To control the P1unit settings via the CH Control Android App running on your tablet. Simply connect the P1 Ethernet port
to a standard Ethernet Router (equipped with a wireless access point so it can talk to the tablet) using an Ethernet RJ45
Category 5 cable or better. Using the CH Android App, the P1 settings can be accessed and adjusted on the fly.
In the True Monaural setup (see chapter 2.2), two P1 enclosures are used. In order for the units to automatically apply
the same settings to both channels, the two units must be connected to each other. The simple method is to use an
Ethernet crossover cable and connect both Ethernet ports together. Both units are arranged in a Master and Slave
configuration defined in the user interface menus (see section 7.6 for more details).
Both above points can be combined in case of a True Monaural setup where one also wants to control the units via the CH
Control App. In this configuration both P1units should be connected to a router (equipped with a wireless access point so
it can talk to the tablet). Both units are arranged in a Master and Slave configuration defined in the user interface menus
(see section 7.6 for more details)
5.5 Mains socket and voltage selection
Make sure that the voltage selector at the back of the unit is set to the correct mains voltage with respect to the AC voltage at your
location. Connect the power cord to the unit's mains socket and the power cord's plug to a wall socket.
5.6 USB port
The P1 unit runs a firmware that defines the unit's operation. The USB port is used to perform update to the P1 unit's firmware.
The firmware update is carried out via a USB stick containing the newer version of firmware. The USB Stick is inserted at the back
of the unit into the USB port and the update start command is activated via the front panel user interface.
Please note that the USB port has no other purposes than to update the P1 unit firmware. For more information on unit firmware
update, please refer to section 9 of this manual.
Rev 1.1 P1 User Manual 17
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