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L'Amp: A simple SIT Amp
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Old 23rd January 2012, 07:39 PM   #481
Zen Mod is offline Zen Mod  Serbia
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L'Amp: A simple SIT Amp
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Old 25th January 2012, 06:37 AM   #482
generg is offline generg  Germany
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L'Amp: A simple SIT Amp
O.k. guys,

I played the last days with the SIT in a MUfollower constellation.....

It was very interesting to play with the output node......
Output at the drain of SIT, between the resistors, at the source of the upper Semisouth...

Most bass for my Tone Tubbies came from the last possibility, overall clearest sound from the first possibility....
The MU allows to adapt the sound more to the chain or to the speakers.

But, I repeat ....... Overall clearest sound is still the thick film resistor solution......(I did not try bulbs)
Maybe the wattage or grip for my Tone Tubbies is a bit weak....there the MU gives more power.
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Old 25th January 2012, 06:58 AM   #483
serengetiplains is offline serengetiplains  Canada
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That's my sense of this audio stuff, generg. What actually really distorts the musical signal is everything that electrically codifies and processes that signal. The less of that stuff in play, the obviously empirically the better. I mean, you don't cascade five transformers into the middle of your design only because you can. And where an alternative between passive and active exists, the passive probably got the edge.
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Old 25th January 2012, 07:08 AM   #484
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Quote:
Originally Posted by serengetiplains View Post
.....cascade five transformers into the middle of your design only because you can......
is there anything wrong with that ?

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Old 25th January 2012, 07:24 AM   #485
generg is offline generg  Germany
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Quote:
Originally Posted by serengetiplains View Post
...... I mean, you don't cascade five transformers into the middle of your design only because you can. ....
why not "transform five cascades in the middle of design.....".

for people like me without much knowledge and much eagerness it is often the the logical solution...

thanks for your comment!
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Old 25th January 2012, 07:57 AM   #486
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Originally Posted by generg View Post
O.k. guys,

I played the last days with the SIT in a MUfollower constellation.....

resistors vs. plain CCS vs. Mu (out from SIT drain ) , speaking strictly about Lowther part of presentation ?

than Varislope included in Mu ....
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Old 25th January 2012, 08:32 AM   #487
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for the ones who have PSUD and knows how to use it
i have 22000uf 0.01 ohm / and 47000uF 0.01 ohm with a 10mh hammond choke between . what is the best config , 22000 or 47000 first cap ?
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Old 25th January 2012, 09:54 AM   #488
nicoch58 is offline nicoch58  Europe
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generally low first
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Old 25th January 2012, 09:58 AM   #489
nicoch58 is offline nicoch58  Europe
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PSUD little guide
http://basaudio.net/pubs/dhtrob_psu.pdf

Last edited by nicoch58; 25th January 2012 at 10:18 AM.
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Old 25th January 2012, 11:35 AM   #490
OlavHaal is offline OlavHaal  Norway
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Default generg........??

Hi Generg!

But, I repeat ....... Overall clearest sound is still the thick film resistor solution......(I did not try bulbs)
Maybe the wattage or grip for my Tone Tubbies is a bit weak....there the MU gives more power.

Is these the kind you used: Vishay Power Thick Film 2 Ohm Resistors(25watt)

or is there others that is easier and with higher watt pr. resistor?

Best

Olav
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