These instructions help you get the best possible sound from your I25.
The phase of the AC supply can make a significant difference to the sound.
Use the Polarity Pen supplied with the I25 to verify which pin is live on your AC power cable.
Ensure that the live pin of the AC power cable is connected to the left-hand pin of the power connector, viewed from the back panel:
Your Primare will start to sound best after an initial burn-in of approximately 24 hours.
You will notice a further smaller improvement in sound quality for at least another 3 days’ playing.
RS232 and trigger
The Trigger output allows the I25 to switch on other devices, such as a DD35.
Using the I25 with a DD35
Your I25 is an ideal companion to the Primare DD35 CD Transport. For best results link the two products together as follows using the two cables supplied with the I25:
To connect the trigger cable
The Trigger cable ensures that the DD35 switches on, or to standby, when you operate the button on the front panel of the I25.
- Connect the Trigger cable from the I25 TRIG OUT to the DD35 TRIG IN.
The following error message on the front panel display indicates an error condition:
DECREASE INPUT GAIN
Clipping has occurred on an input. Decrease the input gain; see Input gain.
Press and hold the standby button on the front panel to display the main firmware version number.
Press and hold the standby button on the front panel for 10 seconds to perform a factory reset of the I25.
You can also do a factory reset from the Prisma app, or from the GENERAL SETTINGS menu; see General settings.
Front panel display
The front panel display indicates the type of network connection:
LAN indicates that you are connected by an Ethernet cable.
WiFi indicates that you are connected by wireless.
The CON indicator on the back panel indicates the network status:
ON Indicates the I25 is connected to a network
OFF Indicates no connection to a network
Flashing indicates that the network needs to be configured using the Google Home app.
The Spotify Software is subject to third party licenses found here: