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Dan d'Agostino MOMENTUM: Sonic Character like pure ClassA/SE despite low Idle Power ?
Dan d'Agostino MOMENTUM: Sonic Character like pure ClassA/SE despite low Idle Power ?
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Old 17th September 2014, 08:49 PM   #141
WatrixReloader is offline WatrixReloader  Germany
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..and btw according to the Pics the guessed Transistors Sanken 2SC6145 and 2SA2223 are correct.
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Old 2nd March 2015, 10:20 AM   #142
WatrixReloader is offline WatrixReloader  Germany
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I've found a high-res pic http://img3.audio.de/Dan-D-Agostino-...d-64845804.jpg
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Old 2nd March 2015, 11:05 AM   #143
WatrixReloader is offline WatrixReloader  Germany
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must be another amp
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Originally Posted by WatrixReloader View Post
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Old 17th March 2015, 11:28 AM   #144
tommy1000 is offline tommy1000  Denmark
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Quote:
Originally Posted by jacco vermeulen View Post
Judging by the hurd of TO92s in parallel, there's a fair bit of KAV300i heritage in there.
Yes, I think it is based on the 300i using more transistors in parallel to get a different distortion profile.
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File Type: pdf kav 300i.pdf (42.5 KB, 243 views)
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Old 10th January 2016, 04:48 PM   #145
tiefbassuebertr is offline tiefbassuebertr  Germany
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check out this thread:
http://www.diyaudio.com/forums/solid...ransistor.html
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Old 12th June 2019, 08:10 AM   #146
tiefbassuebertr is offline tiefbassuebertr  Germany
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Quote:
Originally Posted by tiefbassuebertr View Post
I am still looking for the schematic.
Any news ?
post #844 under
bipolar (bjt) transistor families for audio power output stages
shows a good picture.

Despite the high price range, no outdoor power supply with additional choke (air coil) is used here. The internal torodial transformer near by the signal pads and only rectifiers/caps for the ac/dc converting are great disadvantages in general.

On this price range I expect an outdoor power supply equipped with parts like follow:
1) Transformer (6-8 pcs per channel)
Netzgerat ABN Transformator 12 VAC, 500 W, IP20 | Netzgerate Innenbereich (CV) | Netzgerate | Zubehor | Deko-Light
or
https://www.ebay.de/p/Deko-Light-Tra...ell/1506440513
2) Electrolytics e. g. from this brand in Germany
Aluminium-Elektrolytkondensatoren von FTCAP - FTCAP GmbH
and the versions under
https://www.ftcap.de/fileadmin/user_...16.11.2016.pdf
or
https://www.ftcap.de/fileadmin/user_...nschluss/G.pdf
3) Chokes
https://www.intertechnik.de/shop/wei...768,de,65,3415

I strongly recommend to Mr. Dan d'Agostino to take a look at Nelson's "XS 300" - go to
https://www.passlabs.com/products/amplifiers/xs-series

Last edited by tiefbassuebertr; 12th June 2019 at 08:20 AM.
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