25-May-2015, 13:17
(24-May-2015, 16:30)philoouu Wrote:(24-May-2015, 15:26)Antoine Wrote: Earlier today I've tried to reproduce Triggrhappy01's findings regarding ICM but I couldn't reproduce it. HOWEVER, my REW measuring setup is using an external USB sound card connected to a set of analog inputs of the Devialet that are in 'bypass' mode (0 dB) so it could as well be that ICM is not working for inputs in bypass mode as I also could not measure a difference with ICM on vs. off using the remote. I've used earlier configs created from scratch for 8.0 but did configure DPM to be off.
I didn't put a lot of time into it as it's such nice weather here that I wanted to enjoy. Perhaps I'll repeat the REW measurements later using a different configuration, ie. connect the M-Audio Fast Track USB MKII soundcard to the same analog inputs but then configured NOT to be in bypass mode.
Also I didn't get to measuring power usage. To be continued!
PS: just started listening to some music (USB input like usual) and with the Devialet remote still configured to enable/disable ICM the difference is very, VERY clear with ICM on vs. off. ICM on dulls the music, removes life and air/ambiance An attenuation of frequencies >1kHz like triggrhappys measurements show could easily be/probably is the explanation of this phenomenon.
Antoine
Once you remove the ICM on/off from the remote, is the ICM on, off or does it keep the last setting you had when you could access to ICM with the remote ?
Thanks
Philoouu
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Hi Philoouu,
I didn't check this since I wasn't able to reproduce this in my measurements, because of my REW measure setup.
To be honest I'm a bit done testing and troubleshooting, i.e. doing Devialet's work so I've decided to report the issue to them (just filed it) and let them do the troubleshooting/verification and hopefully the fixing as well. Until they report back a fix/workaround I'll keep the ICM button on my remote, I didn't really need the button for anything else anyway.
PS Audio P3, Shunyata ΞTRON Alpha Digital and HC/Furutech power cables, Paul Hynes SR7EHD-MR4, DIY Roon Server & Roon Endpoint running AudioLinux Headless, Phasure Lush^2 USB cable, Audioquest Diamond RJ/E ethernet, Uptone Audio etherREGEN, Mutec MC-3+ USB, Shunyata ΞTRON Anaconda Digital XLR AES/EBU, Devialet Expert 250 Pro CI, Nordost Tyr Reference LS cables, Von Schweikert VR-5 SE Anniversary Edition, Anti-Mode Dual Core 2.0, JL Audio Fathom F112. More detail here.
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