A35.2 Stereo Amplifier User Guide

Additional information

These instructions help you get the best possible sound from your A35.2.


The phase of the AC supply can make a significant difference to the sound.

Use the Polarity Pen supplied with the A35.2 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.


The RS232 input allows you to connect the A35.2 to a controller system. Use a twisted (null modem) cable. For more information contact Primare at Primare at info@primare.net or visit www.primare.net.


For convenience the A35.2 can be powered on and off via a remote link cable, avoiding the need to switch it on or off separately from the preamplifier in the system. 

To power the A35.2 on and off remotely from a Primare processor or preamplifier connect the TRIG OUT signal from the processor/preamplifier to the TRIG IN socket on the A35.2, using a mono 3.5mm jack plug.

The TRIG OUT socket can be used to daisy-chain the remote output to further A35 series amplifiers.


The A35.2 includes an Auto Sense feature that will put the amplifier into standby if no signal is received for 20 minutes. The amplifier will automatically come out of standby if an input is sensed.

To enable Auto Sense

  • Switch the SENSE switch to the ON position.

Bridged mode

The A35.2 can be used in Bridged Mode, to give up to four times the output power to a single loudspeaker.

To configure the A35.2 in Bridged Mode

  • Switch off the A35.2 using the switch on the back panel.
  • Switch the OUTPUT switch to the BRIDGED position.
  • Connect the input signal to the L RCA or XLR input.
  • Switch the INPUT switch to RCA or XLR according to which input you are using.
  • Connect the loudspeaker between the RIGHT + and LEFT – speaker terminals.
  • Optionally switch the GAIN switch to the +6dB position to give a higher output.

The A35.2 will now operate in Bridged Mode.

NOTE: There is no need to connect a “SHORT” wire as indicated by the text on the back of the amplifier.


Printing or saving as PDF

You can print an on-line Primare user guide from your web browser, to provide you with a permanent copy to refer to away from your computer.

Alternatively, you can save a user guide as PDF files, to refer to when are you not connected to the internet.

To do so, simply choose Print, or Print followed by Save as PDF, from your browser’s File menu.

For the specific procedure for each of the most popular web browsers see How do I print or save a PDF copy of the on-user guides?.


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