(23-Jun-2015, 23:43)Rufus McDufus Wrote: Seeing as there can't be too many variables in play here, perhaps the SAM percentage is just the level of bass boost? I thought it was the level of phase correction but have seen it mentioned on here a few times that even SAM at 0% is correcting phase. Would be nice to know exactly what it's doing. I'm not keen on the idea of any excessive bass boosting and to my ears it's always sounded like that's an element of it!
[sorry I'm going a bit off topic here]
I don't think it's a bass boost at all:
The pdf that came with 8.1 firmware explains the SAM % as the amount of extension.
0% means your speakers are operating at their normal frequency response. 100% means you are getting the maximum extension, the number devialet indicates as the new achievable low Hz with SAM on and at 100%.
So people experiencing boom, it simply could be the new found low frequencies not interacting with your room very well. Or maybe it just doesn't sound good and messes up other frequencies. Fortunately Devialet gave us the option to dial it back.
Jeff
Roon->HQPlayer->McIntosh C47->McIntosh MC301s>Transparent Super->Wilson Audio Sabrinas w/ Shunyata Denali, Rega RP8, Rega Apheta 2