Furutech IEC inlet upgrade


Has anyone tried to updrage the Cary 308T CD player (or any other CD player by Furutech or other IEC inlet? Does it require any soldering? All opinions will be appreciated.
transl
I recommend the Pure copper or silver IEGO IEC found here: http://www.audiocircle.com/circles/index.php?topic=53868.0

Pricing:
Ag-R301(BU) $90/ea (Solid 9999 silver)
Gu-R301(BU) $30/ea (Solid 9999 copper with gold plating)

Shipping:
$20 flat rate for any quantity to anywhere in the world.

No soldering required. I have 3 of the gold plated copper version and am happy with the results.
I am slowly changing some of my iec's to Furutech FL 09 iec's. It is physically larger than stock iec'c, so it requires a little work but it does not require soldering. I hear a little more air , better dynamics, and blacker background. Not a huge change,but probably worth the $70.