Do you use SAM?

[SwissBear]

Just to elaborate about my own findings in relation to SAM and without any attempt to contradict anyone, I have observed that SAM was :

• negatively affecting the acoustic phase as mentioned above
  
• significantly increasing the level of bass, which was not necessary desirable. To illustrate this last effect, here is a measurement made at the listening position with SAM (Red) and without SAM (blue). Please note that both curves are identical above 150 Hz, which was expected.
  

[img][/img]

Having said that, I also observed that SAM was significantly improving the cleanliness of the bass of my speakers (B&W 802D3). These clean basses were also contributing to much enhanced transients brought to the system by the Ref-10.

So on my system, I made the necessary corrections in amplitude and in phase (frequency and time domains) in order to correct for the adverse effects mentioned above, and continue enjoying the very positive effects brought by SAM in conjunction with the Ref-10 on the coherence of the sound stage and the superb transients.

After correction, both amplitude and phase are good, and the adverse effects of SAM have been eliminated. There is no masking of HF by SAM enhanced bass.
[img][/img]