Firmware – CT-5300
(only for Serial numbers that start with 2090xxx)

For CT-5300 Models with other Serial Numbers, please use CA-5300 Firmware

CT-5300 Firmware — for Serial numbers that start with 2090xxx

Current Version: V1.04 (Front Panel) – R6 (Heatsink)
Last Updated:
  • 14 September 2011 (Front Panel Software)
  • 2 April 2010 (Heatsink Software)

For all other Serial Numbers use CA-5300 Firmware

Update BOTH software components

The CT-5300 amplifier has 2 internal software components: the Front Panel (FP) Software and the Heatsink (HS) software. Both must be updated. Make sure to update the Front Panel Software FIRST, prior to updating the Heatsink Software.


  • CT-5300- Firmware ZIP Archive
  • (Only for for Serial numbers that start with 2090xxx. The ZIP Archive includes Firmware, Installation Instructions, Release Notes and Amploader 3.5 utility.)

How to check the currently installed Firmware

The unit must be connected to a Classe system using CAN-Bus. On a unit with a TFT screen press MENU/STATUS/MORE to view a list of CAN-Bus devices in the system. Select the amplifier and press SELECT/STATUS to view the current version. If the amplifier does not show up on the CAN-Bus list it should be updated.

Installation Program

This Firmware update must be transferred from a local Windows PC to the unit using the “Classé Amploader 3.5” utility. The Classé Amploader 3.5 utility is a small standalone application that can run from your computer Desktop or your Program Files folder. It is included in the ZIP archive.