02-May-2019, 17:06
(02-May-2019, 16:30)Damon Wrote:(26-Apr-2019, 07:48)cyberkank Wrote: Yes. If I turn off Sam, the problem doesn't appear. The problem is more prominent if the volume is fairly high. (Volume -15db onwards)
I am not a good technical reference, but as I understand it, SAM affects frequencies from about 150 Hz down, and it works to expand, or extend the behaviour of the low frequency drivers to make them perform to their theoretical design capacity. This results in lower frequency reproduction and less roll off at the low frequencies. One could describe this as, 'more bass'. Logically, the speaker cannot produce the same 'amoun't of 'more bass' at louder volumes. The SAM effect tapers off at higher amp power outputs, and so what you describe is, I believe, the correct behaviour for the SAM circuitry.
I don't know what sort of sonic effect that is on your system- there are many variables and we all have different collections of factors that affect the system. 'Loud' is not the same for all systems or all ears or rooms, as we all know.
Slightly aside, I did have a pair of GamuT Phi 5 mk II speakers a few years ago. They were just not a good match for the Devialet. I don't know why, but the sound simply was not 'together'. I do recall reading that those speakers had a notably non-liner impedance curve, which may have affected the sound.
Yep you’re right re the frequencies SAM effects. I think it was the protection that SAM adds to the speakers that was being referred to. Either way, the reason the Magico’s blew doesn’t seem to be the same potential reason that the Raidho’s have blown.
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