digital transport ed consists of:

-upgraded main power supply with filtering and toroidal isolation transformer
-upgraded 27mhz main clock with its own dedicated transformer based power supply
-disabling of the analog audio board(can be reconnected should it be needed later)
-rear analog audio RCA outputs are capped off with terminating 24k gold shielded connectors, this finishes off the complete removes the analog signal chain from the component
-replace the IEC power input with a grounded version
-shielded grounded power cable is included
-the entire top chassis is shielded with copper shielding material
-vibration reducing/isolation feet are added to the bottom of the chassis

digital transport Meridian ed consists of:

-4x SPDIF output with high-end 24k gold RCA connectors, uses Shawns very capable board and high quality wiring inside(Oppo decodes all sound formats internally and the mod supports up to 192KHZ)
-upgraded main power supply with filtering and toroidal isolation transformer
-upgraded 27mhz main clock with its own dedicated transformer based power supply
-disabling of the analog audio board(can be reconnected should it be needed later)
-rear analog audio RCA outputs are capped off with terminating 24k gold shielded connectors, this finishes off the complete removes the analog signal chain from the component
-replace the IEC power input with a grounded version
-shielded grounded power cable is included
-the entire top chassis is shielded with copper shielding material
-vibration reducing/isolation feet are added to the bottom of the chassis

thanks

-Gary Murrell
http://www.custom-ht.com/oppopowerbuy.html
My Personal HT setup