Zen Mod Napisano Novembar 23, 2010 Autor Share #683 Napisano Novembar 23, 2010 Do the same with PCB yes I'll do ......... but only when i check what I have as idea for non-harmful servo Link to comment Podeli na ovim sajtovima More sharing options...
AR2 Napisano Novembar 25, 2010 Share #684 Napisano Novembar 25, 2010 Last year when I heard for the first time J2 at Nelson's place, I was very excited about that amp. Maybe I am too conservative in my expression - I was ecstatic about it. It sounded really great. As I had option to compare it to F5, F3, M2... I was positive J2 was it! Later in the year I build my F5 and F3 and tend to like them a lot. Both of these amps were my favorite, but F5 was kind of ahead of F3. Maybe because I do not have speakers that F3 would shine on, some highly sensitive full rangers that are slightly brighter. F5 on the ones I am using for everyday listening is something I would recommend to anyone. Really great amp. Last summer when I visited Zen Mod, he had great surprise for me - Babelfish J2 boards and two sets of Semi South JFETS. I do not have to say that I was more than surprised and too shy to accept the gift. But after some "arm twisting" I was off the road to SF with the precious package. I wanted to wait a moment when my workload would allow me to fully enjoy assembly of my present and to give it a proper attention. I got good parts, all Dale resistors, decided to use my Threshold case, and I was ready to go. I was really patient, what is really not my stronger side. Shortly after, I was ready to do the first test run, and to my disappointment it didn't go well. My measurement were weird, my DC offset was bad, amp acted erratically... OK Skype with Zen Mod, again measurements, resistor value changes, parts swapping, still bad... Ha I managed even to confuse Zen Modlu. It took about two weeks of testing until it become clear what was going on. The first problem - LED diodes were off, and they were trowing everything out of balance. Ended up eliminating two and landed on four with what I was getting the right voltage measurement. The other problem I had — during all this trial and error time I managed to burn two Semi Souths. I said OK, I will order more, but lets have one channel working just to hear it. What was left were two badly mismatched Semi Souths. We were able to make it work, but as such it was very unstable and prone to loose balance. I ordered 6 more Sami Souths, 4 to install and 2 just in case. When they arrived, install was breeze, amp acted as it should, by the book. All in all LEDs were the source of all problems. Finally I am trilled owner of working Babelfish J2. What is left to do is to tap some holes in my case, solve few mechanical issues, and that is it. In the meantime, I will listen. And listening I did. I was deliberating — do I post my findings? There are not too many people that were as fortunate to receive such a present from Zen Mod, and out of respect for Nelson he is not going to make these boards as a production run. Do I really tell you what I am hearing, or I keep that for myself? It is really hard to be quiet about this. My hand is typing without my decision to do it... Shortly - this is THE amp. This is the king of the amps. This amp is the ultimate nirvana you have been searching all these years. This is the holly grail of all amps. This is the tube amp that doesn't glow, but sounds like one and than better than one. If anyone tries to take this amp from you, you will be defending it until you have no more limbs to fight with, just like in Monty Python's Holly Grail... but you will still be able to spit. All my hats down to Nelson and Zen Mod. I am bowing down to the point I am touching ground with my nose. I do not know what Nelson did in his case, and I still do not know, and I know that Choky didn't know what Nelson did, but he was able understand and to add some, and maybe do it in his own way. He is definitely on the same wavelength with Nelson. He added his signatures in the circuit, free of market constraints that Nelson has to respect... And he did it in the big way. So how does it sounds? It sounds perfect. Nićega previše, Nićega premalo. It sounds right and complete. Singers voice has bass, has mids, has chest. Female singers has bre... upps, chests, you could feel them expanding and shrinking as the air travels through them. Voice is just real. Highs are magical. They are plentiful, but not dry or clinical, they are just magical. This is an amp for any speaker. It has everything in there, so speaker will take it if it can. There is so much base, and midbase you could take shower in it, but it is still not muddy or wooly. It is just right and warm and precise at the same time. That is it, I am not going to say anything about it, someone will come and try to take it. But I tell you I will fight until I could only spit. Zen Modla deserves for this one to be called Zeuss of Audio and to sit above the Olymp, but lets be local and practical, take him out to the Fruška Gora, that will do just fine. Here are the few shots of my current set up, that is waiting to be housed in the case bellow. Link to comment Podeli na ovim sajtovima More sharing options...
hifish Napisano Novembar 25, 2010 Share #685 Napisano Novembar 25, 2010 ...All my hats down to Nelson and Zen Mod. I am bowing down to the point I am touching ground with my nose. I do not know what Nelson did in his case, and I still do not know, and I know that Choky didn't know what Nelson did, but he was able understand and to add some, and maybe do it in his own way. He is definitely on the same wavelength with Nelson. He added his signatures in the circuit, free of market constraints that Nelson has to respect... And he did it in the big way. So how does it sounds? It sounds perfect. Nićega preciše, Nićega premalo. It sounds right and complete. Singers voice has bass, has mids, has chest. Female singers has bre... upps, chests, you could feel them expanding and shrinking as the air travels through them. Voice is just real. Highs are magical. They are plentiful, but not dry or clinical, they are just magical. This is an amp for any speaker. It has everything in there, so speaker will take it if it can. There is so much base, and midbase you could take shower in it, but it is still not muddy or wooly. It is just right and warm and precise at the same time. That is it, I am not going to say anything about it, someone will come and try to take it. But I tell you I will fight until I could only spit. Zen Modla deserves for this one to be called Zeuss of Audio and to sit above the Olymp, but lets be local and practical, take him out to the Fruška Gora, that will do just fine....Wonderfull! and many Thanks to the ZM and Papa - The One and Only!!!They've brought so much Joy and Happyness into our lives... :respect: :respect: Link to comment Podeli na ovim sajtovima More sharing options...
Vix Napisano Novembar 25, 2010 Share #686 Napisano Novembar 25, 2010 Fantasticno! Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 25, 2010 Autor Share #687 Napisano Novembar 25, 2010 Link to comment Podeli na ovim sajtovima More sharing options...
sp300b Napisano Novembar 25, 2010 Share #688 Napisano Novembar 25, 2010 Link to comment Podeli na ovim sajtovima More sharing options...
hifish Napisano Novembar 25, 2010 Share #689 Napisano Novembar 25, 2010 :respect:Kudos to that too (in my case!)! Link to comment Podeli na ovim sajtovima More sharing options...
bata bane Napisano Novembar 25, 2010 Share #690 Napisano Novembar 25, 2010 Excellent description AR2, bravo But if you ask me, somebody put Germanium in those Fet cases, now after listening J2, I am compleatly sure abot that Link to comment Podeli na ovim sajtovima More sharing options...
generg Napisano Novembar 25, 2010 Share #691 Napisano Novembar 25, 2010 You see Zen Mod,Your Friends AR2 has not forgotten you ........... How do you feel now after this wonderful description. I hope you read it ten times at least .......Best for you Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 25, 2010 Autor Share #692 Napisano Novembar 25, 2010 naah ......... he's just over-enthusiastic ......... that's just another Babelfish .besides - I don't like to blush Link to comment Podeli na ovim sajtovima More sharing options...
sp300b Napisano Novembar 25, 2010 Share #693 Napisano Novembar 25, 2010 that's just another Babelfish .You old man...It's much more a Shark than a ...fish Link to comment Podeli na ovim sajtovima More sharing options...
generg Napisano Novembar 26, 2010 Share #694 Napisano Novembar 26, 2010 Poor Zen Mod, he always wanted a babel fish for better understanding between people and now he produced a babel shark.. But who knows what a device can do that produces so much enthusiasm, you see AR2 wants us to defend it at any price if someone wants to take it away........Brothers let us build many babel sharks so there is no robbery ..... Link to comment Podeli na ovim sajtovima More sharing options...
Magura Napisano Novembar 26, 2010 Share #695 Napisano Novembar 26, 2010 Did anybody say "breasts" ? Magura Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 26, 2010 Autor Share #696 Napisano Novembar 26, 2010 breasts ! Link to comment Podeli na ovim sajtovima More sharing options...
Sipi Napisano Novembar 26, 2010 Share #697 Napisano Novembar 26, 2010 why ? Aaahh, that's why... Link to comment Podeli na ovim sajtovima More sharing options...
Sipi Napisano Novembar 26, 2010 Share #698 Napisano Novembar 26, 2010 There's a nice shampoo dispenser Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 27, 2010 Autor Share #699 Napisano Novembar 27, 2010 Generg - what's the story with your little Sonidos ? Link to comment Podeli na ovim sajtovima More sharing options...
generg Napisano Novembar 27, 2010 Share #700 Napisano Novembar 27, 2010 I made only a small test, before they fell on my right foot.........they had some advantages, not so hot highs, and a little bit more volume, but not the fantastic resolution of the Thiel Koax.now they are waiting for a second try, I will give them when I have finished Babel J2 with your boards, I will try them with one and two output devices.......but even for me being retired it is not possible to work on all frontiers at the same time.My wife finds them much more ugly than the ready made Thiel..... so there is still another frontier to consider...ha,ha Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 27, 2010 Autor Share #701 Napisano Novembar 27, 2010 you can always bribe that frontier ( don't forget that all FRs are shining after 200 hrs at least ; Sonidos aren't exceptiongood thing is that you don't have shout from start , to fight with) Link to comment Podeli na ovim sajtovima More sharing options...
sp300b Napisano Novembar 28, 2010 Share #702 Napisano Novembar 28, 2010 Very important thing that I forgot to mention ! Seems to me that BJ2 warming of a heatsinks is much less in comparison to Babelfish, although both of them were using the same supply power and the same operating conditions (Id = 2A). Most obviously this is thanks to the superb SJEP120R100 design which proves to be high efficiency and minimal loss devices. Really seems that SIC is very promising new technology. Fraunhofer researchers succeeded in reducing the power dissipation of conventional inverters by 30 to 50 percent when compared with results obtained using traditional silicon-based transistors. Link to comment Podeli na ovim sajtovima More sharing options...
Zen Mod Napisano Novembar 28, 2010 Autor Share #703 Napisano Novembar 28, 2010 Link to comment Podeli na ovim sajtovima More sharing options...
sp300b Napisano Novembar 28, 2010 Share #704 Napisano Novembar 28, 2010 Let's check the opinions of the others on Big Diy (link) Link to comment Podeli na ovim sajtovima More sharing options...
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