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Old 20th August 2012, 04:52 PM   #6881
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I have a big coil in my Opus Magnum pre regulator that drops some voltage. Plus-Minus 30V come out of the pre regulator without load. The heat sinks in the Paradise get quite warm but not extremely hot.
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Old 20th August 2012, 04:54 PM   #6882
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Ricardo, ca. plus-minus 25V will come out of your pre regulator. That will be just enough or it would not work.
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Old 20th August 2012, 04:57 PM   #6883
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That is correct... 2x18vac is the minimum admissible.

25-18 = 7 Vin-Vout ok for the shunts.
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Old 20th August 2012, 05:02 PM   #6884
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As time goes by, BG's are sweetening and so do the highs... Imaging is quite good at this point.
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Old 20th August 2012, 07:22 PM   #6885
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Quote:
Originally Posted by Joachim Gerhard View Post
Bksabath, the topology and the "sound" of the Paradise R3 did not come in one day. Actually this thread goes back over 3 years. I tried virtually hundreds of circuits, first designed by me alone and then with the help of a lot of contributors. I not only build and measured the circuits but also listened to them until a pattern appeared that looked promising. Also i did not listen alone but i had a lot of guests, some famous, some less that helped in the subjective evaluation. I also gave out a lot of prototyps to other designers and journalists like Holger Barske, Wolf von Langa, Martina Schöner, Stig Björge, Frank Schröder, Thomas Fast, you name it. Also we spend a lot of time to make the circuit robust and easy to build. Over 200 persons will now build the Paradise R3 so we can collect even more data. Stefano is checking out if there is potential for a "super" version. I think we have a nice vineyard now, lets see how we can get the best out of the grapes.

Joachim don't get me wrong the excelence of the Paradise is not under question, I built beta (and same small contribution there) and am going to build R3 as well (is it not proff on how much I like it?)

Paradise is and will be on my system for a long long time and I am sure those 200 and over that are going to build it will be happy with it.

Me and Riccardo have the same listening impressions (For the ones thinking what a loads of bull after my listening impression post< you know who you are> this is much pie in the face and got to wait for GB number 2) and as you can see on Riccardo post 6880 he share my impression that Simplistic has a wider sound stage.

As I said changing sound stage width in the Paradise may actualy take same of the Paradise Flawor out of it.

To discover the magic wider sound stage ingredient and subtle use of it in the right quantity is pure Alkemy to me. Just curious neh?
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Old 20th August 2012, 07:30 PM   #6886
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For best separation it is essential to build double mono. I assume you have done that.
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Old 21st August 2012, 09:51 AM   #6887
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Paradise uses complementary transistors in the input stage.. I believe they work in simetry relative to the signal... Does it mean both sides NPN and PNP handle different parts of the signal ? If so there must be a crossover point right ?
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Old 21st August 2012, 01:01 PM   #6888
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Just recivied this PM
clearly same help wuld be apreciated by many

Maybe the Paradise build tread is needed sooner than expected....

PM qoute name deleted:>
Hi Kksabath,

did anybody give you an answer on your question???
"Will 2 off those 24 V 50 VA be ok for pardise V3 "

Because I'm not that deep in DIY I would order the same Transformers to be on the save side ...

Thanks
/XXXXXXXX

As I said I am not expert so please duble cek my reply

My reply:>Joachim uses trafos as folows in his post Quote:>
Originally Posted by Joachim Gerhard
I run a set of 4 Block transformers with 30VA and 2 x 12V. I have wired each transformer for 24V so two transformers make a plus-minus supply.

End quote
From this Joachim has 60VA avvaliable for each channel


I think that 30 VA 2X24 30VA shuld work
I have ordered 50 VA 2X24 to have a bit of margin
Riccardo uses one 120VA transformer see post 6879

2 transformers dual mono are better than one see Joachim post 6886

For VA calculations
VA= Vsecondary X Amps
so for the one I have ordered 50 VA divided by 48 V(24 + 24) = 1.041 A

For voltagge excluding the Diodes V drop
AC voltagge X 1.471 = DC voltagge 24 X1.471 = 35.304V DC
This is a bit hi but I am using the preregulator board with common mode chokes at imput and output so same of this vill be used by chokes.

Paradise can take more but heath sinks go realy hot.

bear in mind that I am not expert so why not ask the question on the post?
as you are new to this I am shure that YOU GET an answer

Feel free to PM for any help

Al the best
Al
end quote
Hope I got my fact straigt
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Old 21st August 2012, 01:07 PM   #6889
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PS only reason I take liberty to post anonimus PM (first time ever) is that I feel is good for general population.

Otherwise this does not happens
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Old 21st August 2012, 01:47 PM   #6890
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Quote:
Originally Posted by Bksabath View Post
Just recivied this PM
clearly same help wuld be apreciated by many

Maybe the Paradise build tread is needed sooner than expected....

PM qoute name deleted:>
Hi Kksabath,

did anybody give you an answer on your question???
"Will 2 off those 24 V 50 VA be ok for pardise V3 "

Because I'm not that deep in DIY I would order the same Transformers to be on the save side ...

Thanks
/XXXXXXXX

As I said I am not expert so please duble cek my reply

My reply:>Joachim uses trafos as folows in his post Quote:>
Originally Posted by Joachim Gerhard
I run a set of 4 Block transformers with 30VA and 2 x 12V. I have wired each transformer for 24V so two transformers make a plus-minus supply.

End quote
From this Joachim has 60VA avvaliable for each channel


I think that 30 VA 2X24 30VA shuld work
I have ordered 50 VA 2X24 to have a bit of margin
Riccardo uses one 120VA transformer see post 6879

2 transformers dual mono are better than one see Joachim post 6886

For VA calculations
VA= Vsecondary X Amps
so for the one I have ordered 50 VA divided by 48 V(24 + 24) = 1.041 A

For voltagge excluding the Diodes V drop
AC voltagge X 1.471 = DC voltagge 24 X1.471 = 35.304V DC
This is a bit hi but I am using the preregulator board with common mode chokes at imput and output so same of this vill be used by chokes.

Paradise can take more but heath sinks go realy hot.

bear in mind that I am not expert so why not ask the question on the post?
as you are new to this I am shure that YOU GET an answer

Feel free to PM for any help

Al the best
Al
end quote
Hope I got my fact straigt
The short answer is 'yes', a (somewhat) longer answer can be found here Mpp #6462
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