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marantz cd72 mod help
marantz cd72 mod help
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Old 7th February 2003, 11:04 AM   #1
piewie is offline piewie  Belgium
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Default marantz cd72 mod help

I've got a marantz cd72mkII to which I want to add some modifications.
I've allready removed the old opamps and put opa2604's in, but I want to do more. I'll change the clock too, but meanwhile what else can I change? I've heard its better to remove the muting transistors and the output capacitors, but where are they located in my cd72? And which capacitors should I use to decouple the power supply of the opamps?
I there anybody who could help me with these questions?

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Old 9th February 2003, 03:33 PM   #2
dekbearder is offline dekbearder  United Kingdom
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Location: nottinghamshire
I have the original cd72, I brought it cheap a few years ago, the only problem is someone has taken some of the caps and resistors out around the dac and op-amps and without the service manual I don't know the values (If anyone has the manual or could tell me the values it would be much appreciated), is it worth modding one of these players, I have a selection of Blackgate, silmic and os-con caps aswelll as a selection of op-amps to try, my main cdp at the minute is a highly modded Arcam alpha 5+ tweaks include zero oversampling, valve output stage etc
Kind Regards
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Old 10th February 2003, 08:25 AM   #3
rbroer is offline rbroer  Netherlands
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I've owned the CD72SE and CD72MKII.

The biggest improvement to these players is to add low jitter clock. Changing opamps, caps etc. seem minor changes after that.
Rudolf Broertjes
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