Marantz CD63 & CD67 mods list

[Fidelity Audio]

YAY!

Brent

 

[Malefoda]

Starting to look good there matey

Stick a 30VA on the +/- rails (minimum)

Brent

Ricardo, I talked of that (we may have send our replies at the same time)

 

[Thomo]

Cheers Brent.

I have fitted 30va 2x12v tx, but it's buzzing as it still supplying everything else apart from the output.

Going to fit another reg to the dac soon. Does anyone reckon it's a good idea to use separate regs for dac analog L&R?

Cheers, Lee.

 

[Fidelity Audio]

I've not done that yet LOL

I do think it will only be a small tweak if anything. Try it and report back

Brent

 

[Glenn2]

Going to fit another reg to the dac soon. Does anyone reckon it's a good idea to use separate regs for dac analog L&R?

I did that, so I must've thought it was a good idea at the time, but I didn't try it both ways.

I think I looked at where the DAC's analogue ground pins went (to the RCA ground, but via separate left and right grounds) and decided it was better to have separate regs because there are separate grounds, if you catch my drift.

 

[Malefoda]

Same, it's separated on mine and has advantages for me: both are close to the cap they feed and easy to fit in the former big caps holes, it's lovely

And it should sound better... when I'll separate my DOS psus

 

[UV101]

Afternoon all! I've been very quiet lately!!! Just popped in to see whats new!

Did the other Ian sort his blown up DAC?

Nice new look to the forum too!

Ian

 

[bull041161]

Hi all just an up date simont has just been over and sorted my 63 it was just a dry joint. He's a good lad

 

[padman]

Hi Ian

I got a 63 transported all comps from the 67 and all bar a couple of tweaks finished rays list...

still not liking this player, now joined the not working list so had to order a cheapo clock, audio-gd, a mix up with accounts means i'm still waiting

Seriously hoping the clock will bring some kind of change in this player to get close to the 67 perfomance

 

[bull041161]

Hi padman i know what you mean about the 67 sounding better than the 63 my 67 hardly had any mods done only power rail caps opamps and HDAM by pass and it sounded s...t hot. Now the 63 has had loads done and its just starting to sound really good simont as just fitted me a c1 clock havent had chance to have a good listen but its defo gave the top end more detail

 

[Glenn2]

I found the opposite! Gave up on the 67SE and went back to the 63.
67 never really let loose, the 63 was always much more interesting.
The difference should be negligible - it's down to what we did to the players IMO. No two modded players are the same.

 

[bull041161]

Hi GLENN2 i know what you mean but i found the 63 needed a lot more mods to get it sound near the 67s sound.

 

[padman]

Hi Glen
My biggest grumble is the detail on the 63, also the 67 sounded much more "analogue" after only a few mods.
The 63 really hasn't changed all that much despite changing loads of components and using "better" BGs and tin hat amps.
on re clocking the dac and servo, if it jumps forward i may continue with regs and psu's
As i'm not an electronics engineer i don't understand why the 2 players are so different
The only thing done to the 67 not done on the 63 is splitting d/a supplies, i tried it but it failed to read the disc so put it back to original.
When did you find that "leap" in performance?

Cheers Ian

 

[Glenn2]

When did you find that "leap" in performance?

Three major mods for me were:
1) Clock (Tent XO2 + XO Supply)
2) Regs for each DAC section
3) Regulating the servo amps (already done for free on 67)

For op-amps, I like a toe-tapping sound and for me those LMs (even the tin hat ones) are total pants.
2xAD825 did it for me (although 2xAD8065 was very good, as was LM6172+OPA627). All SMDs.

 

[bull041161]

Hi padman know what you mean my 67 only had the tin hat opamps caps power rail caps and HDAM by pass and it sounded bloody good. But the 63 had all the same mods and it sounded **** till SIMONT fitted me 5 extra power regs and tonight he fitted me a c1 clock but its bit late to have a good listen but the short listen i did have it sounded very good i will let you know my findings. As im interested why 2 simler players can sound so different

 

[padman]

3) Regulating the servo amps (already done for free on 67)

Maybe thats what holds this player back??

I thinks it was splitting supplies that really made the 67

 

[bull041161]

Could be right as simon put 4 regs on the dac it made it sound better but then he added another for the servo and to me the one on the servo made bigger sound improvement than the 4 on the dac

 

[Glenn2]

The layout around the clock crystal is worse on the 63 too, but doesn't matter when you add a separate clock.

The acoustica clock hack is the best mod you can do on a 63 if you're not actually replacing the clock I think.

 

[Thomo]

Hi Glenn.

Are you still using opamps, or have you gone discrete?

Lee.

 

[Glenn2]

I went discrete on the 67, but with a Zapfilter. It made a big improvement, but the 63 with AD825 still beat it in the end. Even the Zapfilter couldn't shake off the slightly constipated sound that my 67 had, and that my 63 never had.

I don't use it anymore - I use a Squeezebox3 and a lightly-modded Dacmagic. To my ears it's better still, especially the imaging, which is holographic. But I digress....