Ok, so I sorted it out, please refer to this thread:
https://www.audiosciencereview.com/forum/index.php?threads/dirac-live-3-1-1-bugs.26027/
https://www.audiosciencereview.com/forum/index.php?threads/dirac-live-3-1-1-bugs.26027/
Release notes are posted now to the Bluesound site:BluOS 3.14.31 is available.
Changes?
YesDoes the distortion problem still exist after the BluOS update?
The changelog does not indicate an improvement in this area, but in the past not all changes were listed
You can use BluOS to set up a network file share (on a computer or NAS) that contains your music files as a source. Then you can just keep adding files there and play them with the M33.still waiting for a ship to bring me one of these, very soon hopefully.
Anyway I was wondering, if I connect an external storage via the USB connection ao I can play my own files, can I access this storage via the network or in any way? So that I can update it for example if I add new files to my collection?
Has anyone tried this?
This may well be the case, gain changes after a f/w update have also been observed in the past:Strangely I think I noticed some change in the perceived volume with the M10 using same volume as earlier after some recent firmware update.
I don't think my M33 became better, i think Dirac Live do has some imporovements.This may well be the case, gain changes after a f/w update have also been observed in the past:
Link
For me, this raises the question of how valid the reviews made in the past still are.
Has the M33 now become even better?
I had the same problem with my subs (JLA f112v2s). They would not wake up unless med/high volume selected. Ended up returning the M33, had to pay shipping and 15% restocking fee although this is clearly a defect in the design of the M33. So sub users caveat emptor.An FYI for those thinking of adding this beautiful subwoofer to your setup. I picked up a white KC62 to pair with an NAD M33, but sadly had to return it after seven days. There are a number of issues I experienced:
The KC62 is a marvel of mechanical engineering, but it feels like a beta product. I’ll definitely be looking at the V2 version of this subwoofer, when all the kinks are worked out.
- The KC62 won’t wake from sleep using the M33’s sub-out unless I increase the volumes to high levels. This is partially due to the M33’s low voltage output (max 1.1V) and the KC62’s wake threshold being too high (even their own KEF products struggle to wake the sub).
- We all know about the inter sample clipping issue which rears it’s ugly head when using the subwoofer outputs. The temporary fix is to turn on tone controls and turn the volume up 10db to compensate.
- There was a hum or ruffling sound from the subwoofer that would come and go. Changing the ground lift switch would sometimes fix the issue, only for it to reappear again randomly.
- When using the M33’s pre-outs, there was an ENORMOUS pop from the subwoofer when it would come out of sleep. This would be a full excursion movement of the woofer cones. The first time it happened, I’m certain it shortened my life by a few years. I posted a video of it on the KEF owner’s forum on Facebook if you’d like to see the incredible excursion of the little woofers.
As an aside, for those that dislike Dirac, I would think there has been some error in measurement or the filter creation process. The most recent version of Dirac has some bugs that result in the filter putting one channel out of phase. You can test this yourself if you’re getting funky outcomes from Dirac; just flip the wiring on one speaker and load Cheskey’s phase test single. You’ll know right away if you’re affected by the bug. While Dirac has confirmed this bug exists in 3.1.1, I’ve actually experienced this bug in previous versions as well, so it may be some interaction issue with the M33, or between Dirac and MacOS.
When Dirac is working correctly, it’s glorious, especially with the NAD curve which boosts the low end by 7-8db and gentles curves down at the high frequencies. I can never go back to listening to music without Dirac.
New BIOS upgrade today.. checking on the changes.
It's not listed in the BIOS changes log, but I can tell that something has been done to the Tone Controls. When engaged the sound no longer seems less sharp and no longer seems to lower the volume.
Maybe they have done something to fix the clipping issue that was apparent on some tracks too - will have to test later.
I wouldn’t say it’s a defect in the design. One of the biggest benefits of the M33 is that we don’t have to go through the hassle of matching components given each manufacturer has their own view of input and output voltages. This subwoofer issue just reminds that we need to pay attention to specs when buying equipment.I had the same problem with my subs (JLA f112v2s). They would not wake up unless med/high volume selected. Ended up returning the M33, had to pay shipping and 15% restocking fee although this is clearly a defect in the design of the M33. So sub users caveat emptor.
I just purchased a Perlisten D15 sub and noticed in the app that the input sensitivity could be adjusted. Hallelujah!