RETRO S50 – Firmware

The iFi XMOS firmware version 5.2 ‘Limoncello’ is ready for public download.

This latest firmware v5.2 ‘Limoncello’ is unified (read: works on the following machines):

• RETRO Stereo 50
• micro iDAC2
• micro iDSD BL & micro iDSD
• nano iDSD

iFi XMOS Firmware version 5.2 is NOT suitable for: iDAC, iLINK, AMR DP-777. So please do NOT FLASH these machines with v5.2.

Non-iFi customers should NOT download this firmware for other non-iFI XMOS devices. This firmware is proprietary XMOS firmware and is for iFi-specified products only. You risk damage to your machine if you attempt to flash your non-iFi XMOS dac with this firmware.

For the Retro Stereo50:

1) Firmware v5.2 ‘Limoncello’

The very latest in-house firmware[1] version 5.2 for ALL iFi products[2] is available. It is very similar to Gelato v5.1 but there some nice, minor improvements:

i. Small code optimisations.
ii. Fixed issues surrounding DoP standard; including ‘clicks’ when changing tracks and sonic differences to native DSD.

(Sub-versions 5.1A and 5.1B are not relevant to the Stereo50.)

No. Version Date Description Windows Download MAC
Download
5 5.2 ‘Limoncello’
(Latest version)
13 May. 2016 Minor Optimisations

Similar to v5.1 but with:
• Small code optimisations.
Fixed issues surrounding DoP standard; including ‘clicks’ when changing tracks and sonic differences to native DSD.

download download
4 5.1 ‘Gelato’ 18 Feb. 2016 Major optimisations
• All-new XMOS ‘deep-core processes’ software for different behaviour of SPDIF (after XMOS previously modified the USB section).
• Enables DSD256 for 48kHz based sample rates up-conversion when using DSD256 in DoP mode.
• Fixed issues surrounding DoP standard; including ‘clicks’ when changing tracks and sonic differences to native DSD and other minor bug fixes.
• Minor updates/fixes
download download
3 5.0 ‘Vanilla’ 19 August 2015 Major optimisations
• Various code optimisations
• Minor updates/fixes
download download
2 4.10 24 July 2015 Major optimisations
• DoP playback enhancements,
better XMOS ‘Star Clocking’ and core load distribution
download
1 4.06 18 February 2015 • Original launch firmware for customised XMOS download

Note: As with all such firmware upgrade, there is a risk of bricking your iFi product if something went wrong during the upgrade. If your iFi product is bricked, you need to send it back to the dealer/distributor for repair.

Hence we do not recommend the user to upgrade or downgrade the firmware just for fun. Only do the upgrade or downgrade when necessary.

Follow the upgrade instructions here.