Mcintosh

dsd is all i know

DSD?

DSD = Direct Stream Digital; sigma delta modulation @ 1 bit, 2.8224 MHz sampling.  It is the SACD standard.  The C2500 has a pulse code modulation-only DAC that goes up to 32 bit, 192 kHz sampling.  PCM is the foundation of the CD Red Book standard (16 bit, 44.1 kHz).  The DAC in the C2600 has both PCM and DSD.

Regardless, the real magic of the C2300/2500/2600 series is the analog phono section.  One of the best out there.

Hope this helps!

I snagged a C2500 just after the C2600 was introduced.  I believe the main performance difference is the C2600 has a newer, and "better" ESS DAC chipset and it has the new headphone amplifier built in.
As I don't use the built in DAC and hardly ever listen to headphones, the C2500 seemed like a better choice for me.

Thanks for the replies but I'm talking about the MC2500 amplifier and MC2600 amplifier both by McIntosh