Tweak on Marantz CD63 ..... Burr Brown OPA2134 + Elna RJH , a simple recipe to make it work at his best!

The last Marantz CD63 recipe to make it work at its best!

.....Just a little dumping here and there ....

Swap C106 for Panasonic FC  10/50V  and add the Elna cap C107 in RF Amp stage

Swap the C803/804 main cap for a secret brand  cap  ;-) 2200/35V, and C805/806 with a pair of Elna RJH 470/25V bypassed by a pair of green polyester 104 .

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 ok ........ just swap CD07 and CD04 for two Rubycon ZL 330/16V ..... just take off the old NJM2114 and set a pair of sockets in order to test different Opamp *    
............. I achieved one of the best result with OPA2134, but you could find many others working even better .....it's up to your taste!!!


 .....and now is the time to take care of the LPF circuit/output stage:
the first thing to do is  bypass the HDAM circuit by the
removal of Both R617 and R618.......  stoling the signal from the main path ...... then the signal will flow into a pair of resistors 470 OHM Allen Bradley and will be coupled by a pair of "secret brand cap" that I 'm going rename "MaoCap"  'cause I found out their high value in audio matter,further I think that few people know about them ........ sssshhhhhhh ....... pls do not ask me, I won't tell you!      ;-) .. ah they will be bypassed by two cheap, but worth crispy sounding ceramic cap 104 ..........great alchemy!

........but .... you are aware that something is missing???!!!!!
 Yeees the muting system is connected and working ..... that's not that nice!true??!!! ..... do not worry, I have provided to cut off both RCA plug from the signal path, first, and then the whole stuff muting are isolated from any other component !
...... yes too lazy to unsolder all transistors they will lay there uselessy ! :-)

Curious to know the result ?? 
You know ..... I do not believe in the look ...... I do not believe in rumors ....... but I do believe in my ears only!!
 Men..... believe me this device "took off" from a normal CD player, to become a real audiophile CD player!!! ................................ a great stuff to listen to music at high level indeed!
You can hear everything from the recording  and it plays everything without overdoing, but in a natural outstanding way!  ..............very open and natural, an outstanding sound texture..........both micro and macro details are not missing at all , tonally balanced, with great presence and voice ........a well balanced soundstage, with a very good  instrumental position on stage ...... 
In one word it sounds analoge!
 ....... analogue and musical......now you can listen to music not only sounds!  

* Follow the opamp comparison ..............


see also



http://maoaudiolab.blogspot.it/2012/09/marantz-cd53-upgraded.html
http://maoaudiolab.blogspot.it/2013/10/marantz-cd63-mkii-kisesotericnot-at.html