jh6you
jh6you,
would you describe the power supplies of the XSoz, how big are the transformers, the caps, etc..
the psu seems to be not symmetrical, only 32 volts against ground? but the picture of your amp shows two Caps, which tell me that the psu is symmetrical.
or do you use two psu`s in your amp and one cap for each channel?
did you match the irfp`s of Xbosoz and/or XZoz?
Ralf
jh6you,
would you describe the power supplies of the XSoz, how big are the transformers, the caps, etc..
the psu seems to be not symmetrical, only 32 volts against ground? but the picture of your amp shows two Caps, which tell me that the psu is symmetrical.
or do you use two psu`s in your amp and one cap for each channel?
did you match the irfp`s of Xbosoz and/or XZoz?
Ralf
jh6you,
nice work. Have you builded a ZEN or SOZ before?
What is the sound of you XSOZV2 in comparison to ZEN or SOZ.
Is it possible to change the orig. BoSOZ to a good unbal. to bal. transformer by only changing the input like you did?
Günter
nice work. Have you builded a ZEN or SOZ before?
What is the sound of you XSOZV2 in comparison to ZEN or SOZ.
Is it possible to change the orig. BoSOZ to a good unbal. to bal. transformer by only changing the input like you did?
Günter
Selfmade
Hi Günter,
when you read the former pages you will see, that he has no comparison to original SOZ, cause he has not build one.
In german: er hat keinen soz gebaut, deshalb ist es so schwierig aus seine klangbeschreibungen herauszufinden, ob er hiermit den SOZ getoppt hat.
Regards,
Ralf
Selfmade said:
Hi Günter,
when you read the former pages you will see, that he has no comparison to original SOZ, cause he has not build one.
In german: er hat keinen soz gebaut, deshalb ist es so schwierig aus seine klangbeschreibungen herauszufinden, ob er hiermit den SOZ getoppt hat.
Regards,
Ralf
Hi Gunter
Yes, I think so if you do not mind the “asymmetric” balanced output signal swing. Nelson Pass, however, definitely recommend us to apply the constant current source tails instead of the passive resistors of the original BOSOZ, when we are going to use the unbalanced input. Reason: The CCS tightly backs up for the “symmetric” balanced output signal swing. I hope this info will be useful.
JH
Ralf : I am another that soon will build and listen to the jh6you Xzen. Recently ,to start ,I try the ZenV2 and I'm pleased with the sound .It was the firt time I try the active current sources (Aleph cs in this case) . Then I converted the zen into Aleph.
Yes the Aleph has a good performance , i told to myself...
until I drive it with balanced signal: it begin to sound very good and much better than when I drive it unbalanced.
Jh6you, enjoy the music😉 I'm sure that is most simple listen than describe sensations , although there is not doubt for me that the xzens will sound wonderful!
Yes the Aleph has a good performance , i told to myself...
until I drive it with balanced signal: it begin to sound very good and much better than when I drive it unbalanced.
Jh6you, enjoy the music😉 I'm sure that is most simple listen than describe sensations , although there is not doubt for me that the xzens will sound wonderful!
Henrick ; driving X ZLS unbal to get X bal out?
Hi Henrick,
I wish to compliment you first of all looking at the wonderful job you did in the X ZLS and X Son of Zen.By the way , also all other mates in the forum who contributed to get this project done.
...for your version dated 3 october 2002;
I have a few questions;Henrick , do you think your X ZLS would even do a good unbal to balanced converter?Even if I run it with gate of Q102 tied to ground for example? I wonder if the X benefits are acquired this way 😕
Is it right that R 115 is now a piece of wire instead of a resistor?Which I would find right to get the X communication between the 2 halves for noise and distortion cancelation ?
I guess now Q101 and Q 102 must be matched pairs?
Do you think a CCS like the last one from JHyou would help for unbalanced input? Then we would have 2 CCS and still the piece of wire to get X communication?
Thanks for help.I am just thinking about transforming my ZLS into a X-ZLS and then listen to see if improved sonics. 😉
Best regards to all of you in the forum
Anael
Hi Henrick,
I wish to compliment you first of all looking at the wonderful job you did in the X ZLS and X Son of Zen.By the way , also all other mates in the forum who contributed to get this project done.
...for your version dated 3 october 2002;
I have a few questions;Henrick , do you think your X ZLS would even do a good unbal to balanced converter?Even if I run it with gate of Q102 tied to ground for example? I wonder if the X benefits are acquired this way 😕
Is it right that R 115 is now a piece of wire instead of a resistor?Which I would find right to get the X communication between the 2 halves for noise and distortion cancelation ?
I guess now Q101 and Q 102 must be matched pairs?
Do you think a CCS like the last one from JHyou would help for unbalanced input? Then we would have 2 CCS and still the piece of wire to get X communication?
Thanks for help.I am just thinking about transforming my ZLS into a X-ZLS and then listen to see if improved sonics. 😉
Best regards to all of you in the forum
Anael
Anael
Thanks for the compliment.
I will give You some answers, but it might take some days, since I am working hard these days, but at least in the comming weekend.
Hope this will do.
🙂
Thanks for the compliment.
I will give You some answers, but it might take some days, since I am working hard these days, but at least in the comming weekend.
Hope this will do.
🙂
Hi, Gunter
I still like Zen and Zen V2 particularly for their overall natural sounds. Nevertheless, I get nice characters in the combination of BOSOZ and XSOZV2. The sound is brighter, cleaner and has better transparency. There are good separations of each instrument, and superb details, and it returns back to a nice harmonic texture.
...Yesterday I had a visit to my favourite CD shop, who has a monster grade hi-fi system of Wadia 860, ML 383L, ML 333L and Tannoy Kingdom. O¡¦no! Treble attacks ears and bass sound is accompanying boong boong. Where is the harmonic texture? It was a miss-match. It can not be mine. I found myself wishing if I could have a chance to control Tannoy Kingdom with my new system...
Bass is pretty better. It is confirmed by, among others, the CD of Richard Bona, Reverence, COL 504497 2.
Sound stage is wider and deeper.
Better dynamics... Beauty of violin solo leads the roaring surf following behind, and the roar covers whole space as if to swallow the beauty. The beauty dances out of the roar, and briefly back to the quietness, and appears again like a song of paradise. The roaring surf tries to catch the beauty of the violin solo again...
JH
Hi jh6you,
thank you very much for your description. This is what I want to hear and what I expected from the circiut.
I think I´m going to build your XSOZV2, too. The circiut is simple and the parts easy to get.
What about the heat dissipation of one channel. 100 Watt?
Could you say something about the damping factor?
Is it possible to use IRFP 040. I have some laying arroud.
Many Thanks to everyone, who let this forum live. Especially Mr. Pass.
Regards
Günter
thank you very much for your description. This is what I want to hear and what I expected from the circiut.
I think I´m going to build your XSOZV2, too. The circiut is simple and the parts easy to get.
What about the heat dissipation of one channel. 100 Watt?
Could you say something about the damping factor?
Is it possible to use IRFP 040. I have some laying arroud.
Many Thanks to everyone, who let this forum live. Especially Mr. Pass.
Regards
Günter
Hi Gunter
Yes, 100W per channel is a safe estimation.
It is pity. I have no idea about the DF figure. However, as variation of R16 (1.5k) value makes us possible to adjust DF during the final listening test, I recommend you to install it in the convenient place for an easy replacement of R16. I could co-operate to find what value of R16 makes approximately how much of the AC current percentage in the active current source.
Nelson Pass always prefers IRFP040. I expect the 040 will be a good choice. Please do not forget to prepare the matching pairs.
I am sure that this project is born especially thanks to Mr Nelson Pass and also thanks to Henrik and other contributors to this thread.
JH
Yes, 100W per channel is a safe estimation.
It is pity. I have no idea about the DF figure. However, as variation of R16 (1.5k) value makes us possible to adjust DF during the final listening test, I recommend you to install it in the convenient place for an easy replacement of R16. I could co-operate to find what value of R16 makes approximately how much of the AC current percentage in the active current source.
Nelson Pass always prefers IRFP040. I expect the 040 will be a good choice. Please do not forget to prepare the matching pairs.
I am sure that this project is born especially thanks to Mr Nelson Pass and also thanks to Henrik and other contributors to this thread.
JH
Hi Gunter
In order to find your DF and R16, I recommend to try five different values of R16:
750, 1.1k, 1.5k, 2.2k, and 3k, or similar storehouse values.
The lower R16, the higher DF (tighter bass).
JH
In order to find your DF and R16, I recommend to try five different values of R16:
750, 1.1k, 1.5k, 2.2k, and 3k, or similar storehouse values.
The lower R16, the higher DF (tighter bass).
JH
jh6you
jh6you,
i hope i can use the x Bosoz as unbal - bal converter in grounding - of the input??!!!
Have you taken special parts in your circuits? or are all standard parts which one can buy in electronic shops?
Even the Caps- no expensive parts?
Regards,
Ralf
jh6you,
i hope i can use the x Bosoz as unbal - bal converter in grounding - of the input??!!!
Have you taken special parts in your circuits? or are all standard parts which one can buy in electronic shops?
Even the Caps- no expensive parts?
Regards,
Ralf
Ralf
I used high quality of ELMA 2 x 11 step switch to make the input volume attenuator.
I used cheap metal film resistors of +/- 1% tolerance for all.
I used cheap electrolytic capacitors for all.
I used tin-plated 0.7mm dia solid wires all the way.
🙂
JH
I used high quality of ELMA 2 x 11 step switch to make the input volume attenuator.
I used cheap metal film resistors of +/- 1% tolerance for all.
I used cheap electrolytic capacitors for all.
I used tin-plated 0.7mm dia solid wires all the way.
🙂
JH
jh6you
....thank you ,jh6you.
do you think, better parts will improve the sound?
next days i will buy the parts an give it a try.
hope if the sound of my Soz will be topped.
When i finished i will let you all know the comparison to my soz.
Do you think it`s possible to connect your Xbsoz to XSOZ of Hendrik?
Regards,
Ralf
jh6you said:
....thank you ,jh6you.
do you think, better parts will improve the sound?
next days i will buy the parts an give it a try.
hope if the sound of my Soz will be topped.
When i finished i will let you all know the comparison to my soz.
Do you think it`s possible to connect your Xbsoz to XSOZ of Hendrik?
Regards,
Ralf
Ralf
In my opinion, the better resistors might improve the sound barely,
but the better capacitors could improve the sound somewhat.
I used the good quality attenuator switch, considering error-free
contacts and durability only.
You can set up to XSOZ of Henrik. I hope Henrik will confirm.
Expecting your good result...
JH
In my opinion, the better resistors might improve the sound barely,
but the better capacitors could improve the sound somewhat.
I used the good quality attenuator switch, considering error-free
contacts and durability only.
You can set up to XSOZ of Henrik. I hope Henrik will confirm.
Expecting your good result...
JH
jh6you
jh6you,
i think i need a bit more time than you for reaching a listenable beta state.
Why have you put the attenuator in the input.
i have put mine in the output of bosoz, cause here in low sound levels, there ist no "SSSSSSS" hearable on the tweeters.
do you think a symmetrical 5k pot in the output will work as well as your 3k2 pot?
Ralf
jh6you,
i think i need a bit more time than you for reaching a listenable beta state.
Why have you put the attenuator in the input.
i have put mine in the output of bosoz, cause here in low sound levels, there ist no "SSSSSSS" hearable on the tweeters.
do you think a symmetrical 5k pot in the output will work as well as your 3k2 pot?
Ralf
Ralf
Anael
I will answer You when I am no so tiered in my head.
I will be back.
Jh6you didn´t make an XBOSOZ but a BOSOZ with CCS´s at the tail. This one will not be able to drive my version of the XSOZ, You will loose too much gain, You need my XBOSOZ or something with an outputimpedance < 30 Ohm singleended. BOSOZ, with or without CCS, have a outputimpedance at around 750 Ohm singleended.
Anael
I will answer You when I am no so tiered in my head.
I will be back.
