I have recently updated my MX122 AV Pre-Amp firmware to support DTSX and Auro-3D.
Its always risky to do the update yourself. I do know that there were people who failed during the update and had to send back to the service centre. You have been warned!!
» Click to show Spoiler - click again to hide... «
It DID actually happened to me when my update failed halfway with a "Connection Failed" shown on the AV Pre-amp display panel. Switched off... and when switched back on, it just tried to continue update but still failed after trying another 2 times and stopped with error and then it just freezed there, no longer function. Luckily I was prepared for this and did a full "factory reset" using 3 button presses on the unit itself. At least my AV Pre-amp can still be used and I can try to repeat update later. However, because the update failed halfway at "DSP2", DTSX was already displayed when playing bluray BUT NO SOUND !! Even DTS and DTS-HD MA no sound. All Dolby Digital, Dolby True-HD amd Dolby Atmos audio still worked correctly.
I continued to use my AV Pre-Amp for 2 days in a "half working" condition. Luckily there is a reset. If not reset, it would have remained "frozen" and need to be sent back to the service centre immediately.
I was not going to give up and continue to think of what went wrong and how to continue the update. I even emailed to McIntosh support seeking help. On the third day, they replied and asked me to press some buttons and check the full firmware version of the various parts. He sent me the firmware version details and asked me to compare with that list. Then... on that same third day , I had a "brilliant" idea. Why not connect my AV Pre-Amp to my mobile phone data internet using hotspot and tethering? I did... and wow... the update continued until everything was done successfully. Phew... problem solved and checked the firmware details ... all version match the list exactly so I emailed reply to McIntosh about this and thanked them for the assistance. Crisis avoided! I still don't understand why UniFi connection failed eventhough internet was still connected.
» Click to show Spoiler - click again to hide... «
Here is what I would advise to people who want to personally try to update the firmware... if possible, DON'T do it yourself and just send back to the professionals at the Service Centre to do it.
After that advice and IF anyone STILL wants to take the risk then do these ...
1) Before starting, find out how to do a factory reset. Get the combination button on the front of the unit which need to be pressed together. Ask the Service Centre or your dealer.
2) Do NOT use a slow or unstable internet connection. My UniFi 30Mbps is fast and also stable. My entire update took me about 35 min. If your connection is a "slow" 4Mbps speed... forget about updating.
3) If failed to continue update... do the "factory reset" and then try a different internet connection. My update failed when using my UniFi connection so I used my Maxis Data connection. If still failed, try bringing it to a friend's place to try using the connection there.
4) After trying ALL the above and still FAILED, then BAD LUCK... return it to Service Centre. Just do NOT blame me... I have already stated my warning and did NOT recommend anyone to it.
That's all about my personal experience with my McIntosh MX122 firmware update for DTSX and Auro-3D.
Next, below are my "fun" details of my experience with Auro-3D which I also want to share here.
My system uses 5.1.2 speakers with two Front Top speakers. I managed to find only ONE bluray that has Auro-3D 9.1 which is "Cold War II 2D+3D Blu-Ray" so I tested it.
DAMN ! Only got "Multi Ch In", no Auro-3D. It should not be the new firmware so I wondered what I did wrong here. Then I sent email to McIntosh again showing pictures of my settings. Hehe... the reply was that cause can be TWO things... (1) Bitstream Output must be set at the bluray player and (2) Auro-3D uses various Height speakers so the Layout Setting cannnot use "Dolby Speakers". I got (1) correct and changed my MX122 setting to use "Front Height" speakers and ... WOW... Auro-3d now worked.
» Click to show Spoiler - click again to hide... «
Here is what McIntosh support guy told me...
"Dolby speaker" can be used in the settings BUT at least two "Front Height" speaker must be set. "2 Front Height + 2 Dolby Surround" can be used. Won't work if "Front Height" is completely NOT set.
Regardless of how many additional speakers, at least two must be set to "Front Height" and when done this way... then Auro-3D, DTSX, Dolby Atmos, DTSMA, Dolby TrueHD and others all work! If only Front Dolby is set, NO Front Height... then only Auro-3D don't work, and all others still ok.
Auro-3D Bluray» Click to show Spoiler - click again to hide... «
So, how was the Auro-3D sound? I just cannot give an accurate answer on the experience. The reason is because of the Hong Kong bluray production. Most (maybe all) Hong Kong bluray recordings have audio that are excessively increased too much and altered too much until it really sounds "artificial" and annoying. Maybe many will disagree with me and loved such "effects" This is what I noticed from ALL of my Hong Kong bluray collection. What I can roughly say is that the Auro-3D sounds more wide and spacious and I can "feel" more from the top speakers which seemed to be a bit more lively. The Auro-3D bluray also have DTS-HD MA and I compared this. As far as this bluray is concerned, the overhead surround effects somehow sounded almost the same for Auro-3D and DTS MA.
What about blurays that don't have Auro-3D audio? I proceeded to test with a few using Concerts and then Movies. Whether it is Dolby Atmos or DTSX, these can be changed to emulate (false) Auro-3D. Mmm... here is my overall feeling. For bluray concerts with DTSMA/Dolby TrueHD, Auro-3D somehow sounded a bit better... better staging, more open and spacious with cleaner details but the vocals seemed to be less assertive. For movies, Auro-3D somehow elevates the low bass to cover more of the room space and the top height and surround sound effects such as thunder, gun fire, helicopter sounds, etc seemed to be more aggressive which sometimes can sound a bit overdone.
» Click to show Spoiler - click again to hide... «
I even tested Auro-3D on my Astro HD channels and CD Stereo music. With Astro set to "Dolby Digital 5.1", sound a bit improved but seemed a bit artificial too. When Astro is set to "Stereo Analogue" then Auro-3D sounds bad with sound effects all over the room and vocals too bright. Its similar situation for CD stereo too. Well... this is expected... Auro-3D/DTSX/Atmos don't work well for Stereo Audio sources.
Remember... what I have said here are only my personal views on my Auro-3D experience based on what my own ears tells me. Different people with different ears do have different opinions.
I may be wrong but I can say that Auro-3D bluray releases is rare! So far, I am lucky to only have one to test... miserable ONE! IF your AVR can be upgraded to support Auro-3D and need to pay for it, then I do NOT recommend to do it until more Auro-3D blurays are released. Of course, if its free... go ahead and upgrade! Well, only my personal opinion again
Regards.
This post has been edited by jamesleetech: Dec 7 2016, 11:15 PM