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8th April 2006, 08:00 PM
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#1 |
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diyAudio Member
Join Date: Mar 2004
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Zen V9 J-fet poweramp finished.
I finished the Zen V9 yesterday. Initial listening sessions, sounds really promising. I think this is the best sounding Zen amp, I have heard yet
 I used the PDDA boards, thanks for sharing the layout Peter Daniel and Veteran. Everything went smooth, both channels worked right away. I will note also that the grounding scheme on that layout is just right. There isnt any trace of hum or any other nasty things. Here is a picture of the internals, while adjusting the first channel. The trafos are 2 pcs of 300VA 2x18 volts followed by 2 DIY rectifierboards using 30A Stealth diodes, snuppered with small Rifa's. Smoothing caps are 4x 15.000uF Rifa's. The amplifierboards are like Veterans schematic. I wanted the amp to have the F-amp look, hence the horisontal fins. I am very pleased with the sound of this amp. The top-end is really smooth, detailed and "airy", better than I have heard before from a Zenamp. Thanks Nelson, for giving us this fine circuit Steen
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8th April 2006, 08:05 PM
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#4 |
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diyAudio Moderator Emeritus
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Congratulations! That is one great looking build...
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8th April 2006, 08:20 PM
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#6 | |
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diyAudio Member
Join Date: Mar 2004
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Quote:
I am looking forward to hear some of you guys oppinion about this amp, too. I was pretty surprised to realise how good it sounds, even though I expected it to be good, from NP's writings Here is a closeup of the way the J-fets are mounted with the legs extended with solid 1mm copper wire. Steen
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8th April 2006, 08:49 PM
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#8 |
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diyAudio Member
Join Date: Nov 2002
Location: Viña del Mar, Torreon
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Really neat Steen, that case shines as good as a First Watt.
An best of all it sounds as it should, best of Zens? There seem to be other contenders for the title though, Carpenter’s ZV7T. Maybe John will make a ZV9 and report his findings. Congratulations!!!!
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8th April 2006, 08:49 PM
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#9 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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veeeeeeeeeeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrry ugggggggggggly!!!!!!
 
__________________
my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb
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