"jimi" wrote in message ...
Hello,

I have Marantz CD6000 (not KI not OSE) and PM7000 amplifier. I'm wondering
about replacing NJE2114 in CD.

I found infos that LcAudio changed AD825 to AD8066 in theirs upgrades.

http://www.lcaudio.dk/ad8065.htm

I think about OPA2604, AD8620, OPA627, OPA2134,AD8066 in CD6000. 2604 and
the others is popular and well-known opamp in parameters, amplications,
sound, disadvantage and advantage. But what about new AD8066. What is 8066
in application and sound; in bas,mid, high; have it some emphasizes or some
minuses ? Which is the best op-amp to upgrade to achieve natural, warm
sound, no emphasize in middle and treble, no pain, no fatigue tone ? Have
you ever some experiences with changing op-amps in CD player ?



Thank you very much for all answers and suggestions

Best Regards

jimi

Hi Jimi

I personally would not change anything on pcb board if not nesessary.
Maybe if someone would make "good" modifications and really could
point that this and this mod. really makes sound better, I may try it.
Most cd players are not very well shealded, that is one way to improve
yours.
I discovered out that denon S10 have good shealding around reading and
transport mechanism (whole assy. where cd spins), and thought that why
other middle class players do not have anything around assy. I build
up a sheald out of aluminium foil and carton around my Marantz
CD17mkII assy., and it improved sound. Also ambient temperature around
transport mechanism decreased (heat is the worst enemy of laser head).

Sorry about off topic

BRGDS
Riku