C-series firmware update: C Series v1.5.2


Release date: May 2022

Priority: Low

Includes two separate files (V1.5.2) for both C-series firmware and website and a third file containing the changelog and release notes.

Neither updates are fully compatible with previous versions of the other, so must be installed & used together.

Please follow the link below to download the zip file containing the latest firmware and website updates for C-Series amplifiers and follow the install process.

C Series v1.5.2 Firmware


  •  alp.bin
  • cwebsite.bin
  • v1.5.2 Release Notes.txt

Description of change:

  • Support for mDNS addressing by driver name on link local networks
  • Improves compliance of authentication to current RFCs
  • Fixed a bug where Dante input channel 2 was not routed into the amplifier
  • Fixed a bug where more characters were allowed in driver name using front panel menu than web interface
  • Fixed a bug where trailing spaces were added to the driver name when updating from the front panel menu
  • Minor corrections to help text and firmware updates links on website

Instructions for use:

  1. Click the button to download the zip files required.


  1. Load “Alp.bin” and “cwebsite.bin” from the zip file into the root directory (not in a folder) of a USB drive.
  2. With the C-series unit switched on, insert the USB drive into the “USB Update Only” socket on the rear panel.
  3. On the front panel, press and hold the “Back / Standby” button until the Standby menu appears.
  4. Scroll and select “Restart”.
  5. The unit will restart – DO NOT TURN OFF THE POWER. The front panel LED will flash amber, then the unit will start as normal. This should take only a few seconds. The LED will continue to flash amber while the revised website is loaded. All previous user settings will be maintained and applied.
  6. Remove the USB stick from rear panel.

If you have any queries please contact us: support@ampetronic.com or call +44 (0) 1636 610062