Don Bingaman
Grip
- Joined
- Aug 12, 2002
- Messages
- 20
Keith,
You may be right on the Classe or Accuphase units, but I've heard the first Marantz player and this 555ES is better. What I MEANT to say was that you can't beat the current Sony DSD chipset, (unless Ed Meitner decides to get back into the consumer market ! If you are listening Ed, PLEASE !!!) I'll also bet the SCD-XA777ES is competitive with anything out there right now.
The area where the other guys may have paid more attention is the analog buffer / output stage. Sony uses IC's for this, but theoretically, a matched discrete differential FET-type stage could be an improvement, (ala Pass). Also, once the DSD processor produces a pure bitstream, it should be possible to just run it through a high pass filter to get back to analog. A very high quality low pass filter built out of discrete components may have some advantages relative to Sony's current-pulse DAC's. Reportedly a European company (Vacuum-State Logic) has developed a mod kit for Sony's first generation stereo SACD players which does just that, using a simple 3rd order Butterworth filter, (-3 db at 100Khz), and a discrete output stage. I have not heard one, but Stereophile's Peter Van Willenswaard says it which sounds better than Sony's stock players. They are supposed to be working on a similar kit for the current generation players for all you Modkateer's out there, and I may try one out, if it will fit inside the C555ES chassis ! If and when I do it, I'll report my results right here !!
You may be right on the Classe or Accuphase units, but I've heard the first Marantz player and this 555ES is better. What I MEANT to say was that you can't beat the current Sony DSD chipset, (unless Ed Meitner decides to get back into the consumer market ! If you are listening Ed, PLEASE !!!) I'll also bet the SCD-XA777ES is competitive with anything out there right now.
The area where the other guys may have paid more attention is the analog buffer / output stage. Sony uses IC's for this, but theoretically, a matched discrete differential FET-type stage could be an improvement, (ala Pass). Also, once the DSD processor produces a pure bitstream, it should be possible to just run it through a high pass filter to get back to analog. A very high quality low pass filter built out of discrete components may have some advantages relative to Sony's current-pulse DAC's. Reportedly a European company (Vacuum-State Logic) has developed a mod kit for Sony's first generation stereo SACD players which does just that, using a simple 3rd order Butterworth filter, (-3 db at 100Khz), and a discrete output stage. I have not heard one, but Stereophile's Peter Van Willenswaard says it which sounds better than Sony's stock players. They are supposed to be working on a similar kit for the current generation players for all you Modkateer's out there, and I may try one out, if it will fit inside the C555ES chassis ! If and when I do it, I'll report my results right here !!