Join Date: Jun 2002
Location: in my home theatre
Unfortunately SC-35/SC-1525 is a downgrade (sound-wise) from SC-05. The SC-05 use Wolfson WM8740 DACs and the SC-35/SC-1525 use Burr Brown DACs.
On the video side, the SC-35/SC-1525 is a major upgrade due to Marvell Qdeo K2 upscaler.
There is no difference at all between the SC-35 vs SC-1525 except for RS-232 (IIRC) and an additional 1 year warranty on the SC-35 plus the Urushi finish on the SC-35. Oh and the amber lighting on the SC-35 as opposed to white on the SC-1525
If you want a true upgrade in both video AND audio, I strongly suggest the SC-37. It uses studio-class DACs (the name excapes me at the time being). The same DACs used in high end Apogee ADC/DAC standalone units used by many major recording studios.
THX, ISF, Control4 Certified Professional; CEDIA Certified Instructor; CEDIA Certified Designer