These instructions help you get the best possible sound from your I15 Prisma MK2.
The phase of the AC supply can make a significant difference to the sound.
Use the Polarity Pen supplied with the I15 Prisma MK2 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 I15 Prisma MK2 to switch on other devices, such as a DD15.
Using the I15 Prisma MK2 with a DD15
Your I15 Prisma MK2 is an ideal companion to the Primare DD15 CD Transport. For best results link the two products together as follows using the two cables supplied with the I15:
To connect the trigger cable
The Trigger cable ensures that the DD15 switches on, or to standby, when you operate the button on the front panel of the I15 Prisma MK2.
- Connect the Trigger cable from the I15 Prisma MK2 TRIG OUT to the DD15 TRIG IN.
The following error messages on the front panel display indicate an error condition:
Try the following
- Power off I15 Prisma MK2 and disconnect the speaker connections.
If this solves the problem, check the speaker wiring.
If the problem persists
- Power off the I15 Prisma MK2 and disconnect all input connections.
If this solves the problem, there is a DC offset on one of the inputs.
If the problem persists
- Contact your dealer for service arrangements.
Indicates that the amplifier is overheated.
- Turn off the I15 Prisma MK2 and let it rest for a few minutes.
- Ensure that there is adequate ventilation around the I15.
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 I15 Prisma MK2.
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 I15 Prisma MK2 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: