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Paradise phono stage

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S

sq225917

Member
Joined 2004
planetx.co.uk
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
 
al2002

al2002

Member
Joined 2003
Thanks SQ. Much appreciated.

One other question, if I may: Where can I find performance (noise and distortion) data for this design?

sq225917 said:
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).
Click to expand...
 
Joachim Gerhard

Joachim Gerhard

Member
Joined 2009
suesskindaudio.de
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.
 
Howlindawg

Howlindawg

Member
Joined 2009
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.
 
RCruz

RCruz

Member
Joined 2006
Paid Member
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
 
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