Marantz CD63 & CD67 mods list - Page 1677 - diyAudio
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Old 13th June 2011, 10:07 PM   #16761
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Hiya simon,
Nah it was bog standard What cn you modify simon nothing in there ?

alan
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Old 13th June 2011, 10:29 PM   #16762
SimontY is offline SimontY  United Kingdom
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You're kidding! CD4000 is a 100 player vs the 400/500 CD63KI of a few years earlier.

It may be empty but that's more space for power supplies, clocks, the family jewels etc.

What can you do?! Same as any - clocking, power supplies & regulators, output stage work, mechanical tweaks.
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Old 14th June 2011, 07:36 AM   #16763
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You can mod anything, nothing is unmoddable.

I'm currently upgrading the power amps out of the Hart Audio EVO-1 speakers (for Hart) - http://www.hartaudio.com/Speakers/Ha...dspeakers.html

Well I will be later this week

Brent
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Old 14th June 2011, 07:42 AM   #16764
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It was an empty box,a small tx and psu board the rest was strapped to he underside of the mech?. my eyes aint that good anymore.
alan
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Old 14th June 2011, 07:48 AM   #16765
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Anybody have an idea as to where i can obtain some large value caps for an amp ive got (marantz pm84mk2) 75v 22,000uf and 56v 16,000uf the originals are macron i think.
alan
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Old 14th June 2011, 07:53 AM   #16766
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Send Lee a PM

Brent
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Old 14th June 2011, 07:58 AM   #16767
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Thanks brent,
Its an old 80s class a worth repairing.
alan
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Old 14th June 2011, 08:01 AM   #16768
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Yeah Class A is uber

Brent
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Old 14th June 2011, 08:04 AM   #16769
Chivvyp is offline Chivvyp  United Kingdom
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Default DOS

I have to say I'm impressed with the DOS, really making my 67 sound smooth.

Has anyone here tried fitting one to a TDA1541 machine? Any advice? I know it's not a straightforward replacement due to the dac output type.

Regards

Pete
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Old 14th June 2011, 08:33 AM   #16770
Thomo is offline Thomo  United Kingdom
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I did it once Pete. The only real issue for me was gain, the DOS not having enough of it. You can increase those emitter resistors but you soon run into distortion. I think though you should be able to also increase the 4k7 resistors on the input fet to increase gain, but I haven't tried it.

Edit: you'll have to remove the filter section from the input too

Lee.
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