Quick reply.. well not really
I just bought a couple of cool little monsters Integra made. Model is DSX-3
Slim unit, all digital power supply and amplifers. Even has a small subwoofer amp..
Anyway... I did a couple of firmware updates and it deleted the Dolby PL II, added Dolby Surround and Atmos and a couple of other modes. So I was like wth! I just lost a critical mode.. DPLII was the reason for most of my setup! Anyway... I been listening to all sorts of material, movies, music and literally just skipped right on passed the Dolby Surround mode because, well lets be honest, the name is like ... 35 40 years old? Da hell they thinking? I kept asking, why the hell did Integra just downgrade my unit with a 30+ year old surround mode?
So I got to researching and literally typed in "Dolby Surround upmix" cause the manual states this mode as such and the first page on google that pops up is a explanation of this new mode with a old name. Still, are they just completely dumb for naming it something that is that old and not great at all? They could have named it something like Dolby Surround*2 or similar.
Anyway. Before I read about this Dolby Surround I got updated on the DSX-3 I literally emailed Integra to ask if I could install the old firmware to get the DPLII back. I didnt really bother trying to use the mode cause of the name! Now, I can see that DSU aka Dolby Surround Upmix, is supposedly the next level up from DPLII. I have a big feeling of relief now LOL... I thought I was going to be super mad for a long time, all due to this misunderstanding of the old name
So what do I think of the DSU mode? Its subtle at times. It steers sound very fast. When I say strer I mean it has stereo rears! Very good crisp sound, Not muddy and sloppy. DPLII was rather bland or muddy at times but it was what we had and it worked ok. But now it does seem that DSU is a upgrade. Im still testing it out and getting a good idea of its capabilities, so far its working good. However... In my little apartment, I find a mode on this unit that is much much better called Dolby Surround Surround Enhancer. Yes Surround is named twice cause basically the unit enhances the mode to an extrame but is so good that in my opinion out does the regular DSU.. However, Its a 3 channel mode. It plays the left, right and center as well as the sub but throws the sound around and above you like you have surround speakers everywhere and does it so good that to me, it sounds even better that the regular DSU. In a larger room it might not work so well not sure. But in my apartment, I tell WOW~ Ive had gadgets like the Sonic Hologram Generator do something like this but not as good as what this DSX-3 does. Music and movies both just come out and you can point at the things flying across the room! Im still trying to figure out how the hell they made this mode sound so good. TO be honest that is why I bought 2 of these cause in one room I have 5.1 and the other I have 2.1 and wow does this unit impress!
Anyway... Still testing the regular Dolby Surround mode in comparison to other modes and its pretty good. I also like DTS Neural X which seems to be very similar. Will take a while to know which one is better but to be honest, all these modes are fantastic. I remember back in the day when surround modes were all mostly useless and I just used maybe 2. DPLII and Logic 7. DTS was the best but for turning 2 channel into surround, Logic 7 and DPLII was pretty much the only 2 we had. Now, it seems technology has kicked in 5th gear and giving us a new thrill.....
Thanks for this thread.. Very informative and glad that I now know what DSU really is...