23425 
 
 
AVR10/AVR20/AVR30/AV40 Software Release Notes 
 
– 3 – 
Arcam, The West Wing, Stirling House, Waterbeach, CB25 9PB, UK  
 
Host Version 1v40/09 
LCD/IAP 0.78/0.04 
DSP1 02.03 / 02.08 
DSP2 00.01 / 00.23 
DTS/IMAX 3.90.50.1/390.508.2.0 
OSD 0.03 
DAB 303 / 561 
NET 0.100.764 
BT 0.7 (or higher, depending on build) 
 
Fix list: 
IMS20998: DTS files do not play from media players. 
IMS21617: Audio lost when going from playing top menu (Dolby demo disc) Panasonic DPUB820. 
IMS21759: Hi-res audio +Dirac+Auro-3D has audio artefacts. 
IMS21788: Dirac Live filter applied, change filter or audio format, subwoofer pop noise. 
IMS21698: Auro11.1 & 13.1 streams channel format not displayed correctly. 
IMS21801: Dirac Live filters not applied to subs on ch13/14. 
IMS22036: No LFE from DTS HD MA, with 7.1.6 speaker layout & Dirac EQ. 
IMS22064: No sub out using ch13/14 with Auro-2D and DLBC. 
IMS22105: “pop” noises if modes cycled through many times. 
IMS22107: RS232/IP 0x29 returns data with incorrect length. 
IMS22170: Atmos+DLBC missing channels on higher channel count systems. 
IMS22114: RS232/IP Input Config web gui Auro Strength setting corrected. 
IMS22256: AVR configured to Menu > General Setup > Control > Off hangs up when MODE button pressed. 
IMS22274: OSD shows Dolby Volume when accessing Dolby Audio Processing. 
IMS22283: Dolby Atmos 7.2.4 “Transformers Age of Extinction” sub distortion during first 30 seconds. 
IMS22318: RS232/IP Cannot set small L/R speaker with front/rear subs. 
IMS22335: When restoring secure backup, not all keys except DIRECT cancel (as message suggests).