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Paradise phono stage

Hi,

I would like to build the Paradise, but it seems I am a little late...
Has anybody a set for sale?
Or ist there any chance for another groupbuy?

Or would it even be possible to get the layout-files for the PCBs? - I know this is a lot to ask, but I just give it a try.
Thank you.

Chancenvergeber
 
Al, the standard BOM hasn't changed. If I were you I'd shoot for 1% matching on the input stage.

There is a shunt stability mod for anyone experiencing HF oscillation, 2 470n film caps as shown below. (ignore the electros).

26057002053_6b800fbc37_b.jpg
 
Michael Böresen made all the simulations. He should have the Data.
By the way, at the beginning on MPP i made a phono with AD797, although a special circuit. The performance was flawless. Still many think here that the discrete Paradise sounds better. I gave many reasons why that could be. Excuse me that i do not want to repete myself 100 times. We turned every stone here, the over 10.000 posts show.
 
I'm a 'bit' late starting on my Paradise but I'm just about to start pulling together the parts for the main board and Calvins and have a few questions before I start shooting off orders.

  • Is the BOM R31, 30.04.2014 still the latest up-to-date version?
  • Any parts substitutions I should be aware of (for unavailable parts etc...)
  • For the LED's; I have a bag of >KingBright L-7104LGD< in the parts box. Are these suitable?

I'm slowly rereading the entire thread and hope to start ordering parts this weekend.
 
Hello Joachim

Still trying to understand the paradise schematic and need your input.

There are two voltage references that provide VCASCH and VCASCL.

The are made with a ccs and a zener in each case.

R11 Q97 D2 and R10 Q98 D1

What is the purpose of such a circuit ? In my simulations the circuit works perfectly without these subcircuits......

BTW.... Good sound in the MOC this year.... love your speakers 🙂

Ricardo