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Old 28th July 2012, 07:08 PM   #6391
FdW is offline FdW  Netherlands
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For a more precise replacement of the BC327/337 use the BC807/817-40 that come with LTspice.
BC807=BC327 http://www.nxp.com/documents/data_sh...807W_BC327.pdf
BC817=BC337 http://www.nxp.com/documents/data_sh...817W_BC337.pdf
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Old 28th July 2012, 09:17 PM   #6392
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I am back from a busyness trip and just catching up. Tonight i have to go to a party but tomorrow i am free again.
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Old 28th July 2012, 09:19 PM   #6393
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Stefano, i see that you simulated the version with the "Stange Servo" around the output buffer. Michael, didn┤t we change that so that the servo works on the input household ?
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Old 29th July 2012, 12:30 AM   #6394
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Ok, I will update the model and repost results here later.
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Old 29th July 2012, 02:25 AM   #6395
MiiB is offline MiiB  Denmark
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The strange servo works in parallel with the RIAA into a low impedance point, the very reason why the gain is to low, and it impacts the RIAA curve as well. That's the reason I changed it back. Also I believe the servo is less intrusive when i works as an adjustment though the household, compared to when it works in the signal path.
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Old 29th July 2012, 02:28 AM   #6396
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I agree with you. It looks less intrusive although even when used at the output buffer it should have a non very intrusive effect since the signal level is already higher by then.
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Old 29th July 2012, 02:18 PM   #6397
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I am in Paradise
well not right now but was a minute ago.

I got rid of his from my Paradise V2
As a temporary mesure I have aded a common mode choke to each of the channel after the single pre-regulator board.

Considering the big change this made I am going to trow a lot on next V3 build, 2 better trafos better and 2 off pre-regulators is going to be just the start.

If you are going to build this split the suply and consider this Garbage in Garbage out.

I was wondering if some one may have Magnum hopus thingy that is in need of disposal which I will do free of charge

Apart from jokes here is just what you may want to read....

Consider that it is Sunday Morning neighbours in and She is in the mood to re-arrange ornaments (mildly pi55ed of stage)

I pushed the F5 to about 2.5 V on my Polk LS15i and it is the first time Paradise V2 and my FiFi pre are running.

Difficoult to put it in to words Paradise is Just there as Joachim said.

And then same more...
Not only it sound good (if sound is the right word) Music is all there details that where hiden before are there like fingher hitting Bass string and brushing agains it, can not just hear notes I can see the string moving.
Pink F Pulse 7243 8 327001

The T that happens when musiscian close the holes on bag pipes or flute is also there.
Chieftans 2 Claddagh Records CC7

Sound good is maybe to be reserved for other phono stages I have eard that add coloration with Paradise is maybe more a question of flavor, it is a tad warm with lush Bass, and still very fast and defined (maybe a change on output caps on my preamplifier is just what is needed)

There is quite a lot of things that Paradise does prety well
Black Sabath Black Sabath is one of the loudest records I got, other stages won't cope to well with it. Paradise is ... just there it does its job and some how desapear.
Black Sabbath Vertigo VO6 (oh Yeah the original one played 6 no sorry 7 times so far, got couple of spares for evveryday use)

His and pop and sratches are no problem at all.
The Temptations STLM11218 1972 40 years old

So for now first impressions
Is fast
it does not oveload
it des not ad color
It can play old records and reproduce the smallest details with a pricise sound stage.

This is for now as Just when things where getting interesting
Ist a couple of minutes in to the Grand Wazoo Reprise Records K44209
I got girl friend going "juck was that eeck" so time for breack

Maybe I was used to the wrong sound out of my TT, the sound stage I had before was way bigher than my room,( temptations STLM11218) now I just need to save up for a wider room, 3 meters is not enough.

Maybe I can brighten up (and I fell it is wrong already ) things a litle bit just by changing the RIAA caps with Mica or Teflon and Z foils ?

In the mean time I just cant wait for next week when I will be working Nights and have ther Road Just for myself during the day.
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Old 29th July 2012, 02:44 PM   #6398
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Thanks for the listening impression !
I am very pleased that you like it.
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Old 29th July 2012, 02:55 PM   #6399
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Quote:
Originally Posted by Bksabath View Post
changing the RIAA caps
First Q to ask yourself is if you happen to know someone with a rather bulky storage of hip and be square 1% PS caps.
(that fit nicely in either one position of that pretty array of 8)
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Old 29th July 2012, 03:03 PM   #6400
hesener is offline hesener  Germany
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Originally Posted by Bksabath View Post
I am in Paradise
.
;-))))

In the meantime, we are up to 32 sets in the group buy... I expect some more after your post
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