Marantz CD63 & CD67 mods list

[SimontY]

Originally posted by Glenn2
I said on this thread t'other day that I was warming to it but I've changed my mind again (sorry Simon ).

It really depends what you're listening to... but sterile is my overriding impression.

That's the main reason why don't like the BB op-amps. I prefer AD8610 over OPA627 for example.

Glenn

lol, you'd think I designed them or something!

I have 4 LM4562 in my system right now and perhaps it's too much, I'm not sure yet. Either way I know that going discrete is the ultimate in the CD63. OPA627 I found extemely musical, but once I'd heard this new level of detail and accuracy it would seem crazy to take a step back in fidelity. I've heard OPA2134, 2132, 2604, OPA627, LM6172 and these 4562 and the most 'musical' was 627 (has to be in inverted commas!), by a safe margin.

I think it's crucial to have everything else right to enjoy these op-amps. For example I made a change to my speakers recently and the sound has become quite cold and grating at times, but I'm holding out till I get some new parts to try something.....getting sidetracked here! The point is the changes should've been small (I reckon) but before the sound was warm with stunning bass weight - stuff like Money For Nothing sounded so perfect! And now Dire Straits isn't much fun to listen to. I think an accurate sounding op-amp like this lets you hear faults elsewhere very well. Just my 2p, feel free to disagree.

Simon /being aurally assaulted by Elton John!

[Fidelity Audio]

Being assaulted by Elton John are we!!

Something I would not have posted

Brent

[awpagan]

Originally posted by SimontY


Simon /being aurally assaulted by Elton John!

We've heard about Elton's tantrums

opamps seem to have a brand signature.
If you like the sound, it's the best for you.

Discrete outs have diffference in sound, Fet or Bipolar.

I prefer Fet's???????????????????? but

I prefer the equipment to just produce the signal that is provided, nothing added, nothing lost.
let the music speak for itself, good or bad.

allan

[Glenn2]

Originally posted by SimontY
Simon /being aurally assaulted by Elton John!

Preferable to being orally assaulted by Elton John...

[SimontY]

Originally posted by Glenn2


Preferable to being orally assaulted by Elton John...

LMAO. I'm not going to say what I'd like to at this point, it's very offensive and wrong.

[shepperd]

woe is me this is making me crazy! I have one of Brent's 67's. I put some 627's with high hopes, end up totally disinterested, order 4562's and now I hear they're a disappointement! I should have left well enough alone, now I don't know where to turn! I'm going to be forced back to vinyl

[Thomo]

Have you added a cap between the + & - supply pins of each opamp? This made a really big difference in sound to me.

Just a thought.

I am thoroughly impressed with my 627's. And I know Simonty likes them also.


Lee

[Glenn2]

Originally posted by shepperd
woe is me this is making me crazy! I have one of Brent's 67's. I put some 627's with high hopes, end up totally disinterested, order 4562's and now I hear they're a disappointement! I should have left well enough alone, now I don't know where to turn! I'm going to be forced back to vinyl

Don't fret - you'll probably love it. Most people seem to have eargasms when they hear it.

[shepperd]

Originally posted by Thomo
opamp? This made a really big difference in sound to me.
Have you added a cap between the + & - supply pins of each
Just a thought.

I am thoroughly impressed with my 627's. And I know Simonty likes them also.


Lee

Missed that one


how, where, with what?

[Thomo]

I am using 220nF pps as recommended by Ray's list posted at the beginning of the thread.

I think Brent used some larger value bi-polar black gates.

I am not sure what is the optimum but my small smd caps defo made a difference.

Lee.