XR Series Firmware

XR Series products can be updated directly by the user at home. The rear of the products have mini USB ports allowing connection to a Mac, PC or laptop.

In order to update, please follow the instructions here.


CD Player update instructions || Amplifier update instructions


firmware upgrade xr amplifiers for mac v2

Firmware files

CDi/CDt-XR – v.1.5 (servo)

CDi/CDt-XR – v.1.5 (UI)

i7/i9/Pre-XR – v.1.6
(Resolving issue of DSD playback when there is also a SPDIF signal connected)