Ben,
I believe some of SACD are remastered of old master tapes.
If CD was done in earlier days while master tape still in its prime. Then, there may be some CD sounds better than SACD version, plus recording/remaster engineer's ear has to do with his/her capability of remastering tape to a digital source.
On the other hand, dynamic range has a very rigorous scientific definition. I believe SONY's gives the exact number in dB in its introduction paper of every SACD. The advantage is definitely there, and scientifically measurable (For sure, this part is not just simple mental effect). A well recorded SACD is for sure having a more dynamic sound than CD. However, a good LP setup still has a larger dynamic range than SACD. If your friend is referring to LP, I agree, analog is still the best in this regard. I am not sure how your friend compares SACD and CD. But remember the trick in my privous post, enough punch yet resolution. In real life a drummer does punch its drum exactly the same twice. In CD, lots of drumming sounds single toned, but in LP or good SACD not only can sound louder also more expressions because of beter resolution. You can hear the difference of differnt beat. Drum is easy to hear, actually the same applies to all other instrument. (That's why I still like pi-li-pi-li LP).
Piano is another good instrument to hear. Hear all bass/cello in an orchestra winding up and down. I don't think you can hear more music on CD than a LP or SACD.
Also digital processing and coding technology today is much better than old days. Actually, you will gain more than 6 bits of information (or I should say music or expressioins), considering coding/deciding is more advanced now.
I believe some of SACD are remastered of old master tapes.
If CD was done in earlier days while master tape still in its prime. Then, there may be some CD sounds better than SACD version, plus recording/remaster engineer's ear has to do with his/her capability of remastering tape to a digital source.
On the other hand, dynamic range has a very rigorous scientific definition. I believe SONY's gives the exact number in dB in its introduction paper of every SACD. The advantage is definitely there, and scientifically measurable (For sure, this part is not just simple mental effect). A well recorded SACD is for sure having a more dynamic sound than CD. However, a good LP setup still has a larger dynamic range than SACD. If your friend is referring to LP, I agree, analog is still the best in this regard. I am not sure how your friend compares SACD and CD. But remember the trick in my privous post, enough punch yet resolution. In real life a drummer does punch its drum exactly the same twice. In CD, lots of drumming sounds single toned, but in LP or good SACD not only can sound louder also more expressions because of beter resolution. You can hear the difference of differnt beat. Drum is easy to hear, actually the same applies to all other instrument. (That's why I still like pi-li-pi-li LP).
Piano is another good instrument to hear. Hear all bass/cello in an orchestra winding up and down. I don't think you can hear more music on CD than a LP or SACD.
Also digital processing and coding technology today is much better than old days. Actually, you will gain more than 6 bits of information (or I should say music or expressioins), considering coding/deciding is more advanced now.