19-May-2015, 16:23
(19-May-2015, 09:51)Saint0 Wrote:Hello, I have older Focal Utopia speakers, a pair of Diva. Devialet borrowed my own pair to be SAMed, so I hope the correction is the right one! I have a similar experience, SAM does not change completely the bass, and I think it's because we have speakers with already a good bass response without SAM. However if you look at the boomers while playing double bass for instance, SAM correction can be seen immediately at times, movements of the speakers' membrane have a much larger amplitude with SAM.(19-May-2015, 09:28)Saint0 Wrote:(18-May-2015, 12:13)G51 Wrote: Hello, Saint0. Jeff Fritz, Editor of Soundstage.com, once evaluated the expert line (of course not V8.0.0) and said it was dead silent even in his sound-treated listening room. So what comes the problem of the low frequency heart-beat-like rumble and the sudden outburst of very loud noise we heard? Electrical interference from our home electricity network? The later firmware? Or any other factors? Saint0 did you plug the Expert line direct to wall socket or use a power conditioner?
I'm pretty sure power is clean. D250 is connected to PS Audio P5 with Shunyata Z-PC10 power cord, and the P5 goes to MIT 20A in-wall conditioner/surge protector. I'm surprised to hear the low frequency rumble & beating noise, as well as the glitches with SAM 2.0; both happened after the V8.0 update. Unit was clean and dead silent running V7 prior to the update.
I've contacted Devialet, they're supposedly looking into it. This is the first time I had problems with their F/W update.
I'd like to add that V8.0 is running OK under "nominal conditions" playing music at -33dB to -20dB. The operating temperature is 4 to 5'C lower than V7.1.1.
However, SAM has minimal effect on my Focal Scala V1. Sound stage opens up a bit with SAM, but not much changes in the bass. SAM 2.0 is even more subtle than 1.0, not sure if it's worth the trouble. I don't noticed much difference changing the SAM % either. I'm wondering if other Scala V1 users have the same experience?
Best regards,
Sylvain
Devialet 800, Focal Utopia Diva (SAM), Roon 1.3 (build 242, Devialet Air in Roon) + Audio PC (customized Windows 10) + Android app
France
France