Destroyer x Amplifier...Dx amp...my amplifier - Page 515 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th May 2008, 11:16 AM   #5141
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Yep..... there are many good guys, skilled folks, very intelligent people that


said the same as you said.... i have to respect because i cannot plug my brain in those folks brain to perceive what they are perceived.... maybe they are better in hearing than i am.

It is very possible that i can be wrong.... but this is not that my bio chemical brain is showing me all time long.

One thing is have sure, i can be more happy inside my ignorance than others that had so big concerns about combination of multiple tollerances and things alike.... i can be happy with something less expensive and less sophisticated, for sure my happyness will cost less.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 11th May 2008, 11:43 AM   #5142
...truth seeker...
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
Default Good Morning Carlos

I think my hearing is of a quality similar to yours.

I attended a gathering of speaker builders a few years ago. We had the chance to listen to one pair of fine speakers through 2 different crossovers. The difference between the crossovers was one capacitor. One which was a bi-polar electrolytic. The other was a "special" film and foil type seen advertised and costing $$$.

A control switch could be operated from the listening position. Pushing alternate buttons switched a relay which selected alternate capacitors. The listeners knew when they changed capacitors, but did not know which capacitor they were "hearing".

I could not tell the difference. Many could not. There was among us an individual who got it right about 80% of the time. I had to ask myself: "What am I missing?" "What's wrong with my hearing?"

I wish I had spent more time with it to possibly "learn" to hear better. It still puzzles me/bothers me that there are some things I don't "hear".

Oh well, I still enjoy the music!

Regards
  Reply With Quote
Old 11th May 2008, 12:04 PM   #5143
rabbitz is offline rabbitz  Australia
diyAudio Member
 
rabbitz's Avatar
 
Join Date: Jul 2003
Location: Newcastle, Australia
Carlos

Women do hear better than men. All my designs are not signed off until the one who must be obeyed says it's OK.

She has directed me a lot of faults in the designs over the years and I'd hate to say it, she was right.
  Reply With Quote
Old 11th May 2008, 12:36 PM   #5144
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Yes Mongo...it is a pitty that i cannot perceive those things too


Rabbitz.... i agree they are better, women and children can evaluate better... i do use my wife and daugther to tell me differences, and i see some i cannot perceive.

I want to ask you, please, to send me your evaluation of your Cambridge XD into the first seconds you listen to it.

I really thing that we cannot give time to ears plus brain to adjust...but really i thing you will not be able to give me correct informations as you have "tuned" your speaker to the Cambridge

So, it is not more the Cambridge into a flat speaker, now a days you have a Cambridge with a matched speaker.

Yep... i think you may have another one entirelly flat, not tweaked... this will give me some informations i will love to know.

Send me by mail dear Rabbitz.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 11th May 2008, 02:29 PM   #5145
diyAudio Member
 
Join Date: Nov 2004
Location: Mount Isa, Queensland
sandyK wrote:

Quote:
The fact is, that even people older than you, even with damaged hearing, may be able to be aware of the existance of much higher frequencies than 20kHz. The upper harmonics,even as high as the 8 th harmonic in some cases, help to convey the differences between the "air' between them. I understand it is the rise and fall times of these waveforms that the himan ear responds to.
Thanks sandyK. It is a good explaination for what I have experienced.

I've always been sensitive to the high frequency performance of my fi-fi, and to the high frequency content of the music, so I was apprehensive of losing that ability as I grew older.

I'm now 74 and that time has not yet arrived. No doubt there has been a change, but not to the extent that it is very evident, when listening to music. Sure, my hearing of test tones is restricted, falling away in level above 12 kHz.

I can still easily detect changes to my system. For example, after recently improving the resolution of my Turntable front end, I now find the need to change the cartridge settings (VTA and bias) often, even during play.

I had already figured that the reason that I still have a good sense of the high frequencies in music might be the effect of harmonics in music signals. sandyK's quote reinforces this thought .

billabong.
  Reply With Quote
Old 11th May 2008, 05:11 PM   #5146
udailey is offline udailey  United States
diyAudio Member
 
Join Date: Mar 2008
I dont think Carlos is saying that expensive caps do not produce higher frequencies. This may not be what many of you intended to say, but reading the posts they end up being about frequencies that some can and can not hear. I have not yet read where anyone said a regular, say, Nichicon or Panasonic, could not transmit the same frequencies. So you know, there is no argumentative tone here. I just agree with Carlos that there is no music in a capacitor that gets added to the music recorded to your CD. The capacitor or resistor simply allows for a certain amount of capacitance or resistance. Its math. For instance, Black Gate... do they add something to their capacitor other than winding a conductor and an insulator? It would have to be the addition of some musical electrical component, otherwise its nothing different than a Sprague. They all buy their foil and insulator from the same place. Maybe Black Gate is much more accurate with their capacitance. A resistor is a resistor is a resistor. You can make one with a graphite pencil on a piece of paper and put your + and - on it as a pot moving one closer to the other along your pencil drawn line. The inside of a resistor is nothing more than a certain length of carbon. Carbon is not able to be altered. Its an element. The simplest thing on earth. More or less of it could make a difference, but there is no other kind of carbon. Its all just carbon.
I have to eat lunch. This carbon based creature is being called up from the basement.
Uriah

I will say that my Fostex sound way different than the first listen. The first listen was unbearable and unforgettable. Terrible. I played them whenever I would leave the house and after a week or so they sounded much better. But I think that is a different issue since they are something that moves and flexes and may not flex back to the same position every time they are used.
  Reply With Quote
Old 11th May 2008, 05:41 PM   #5147
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Thanks Udailey, i am glad to have UDaily with me


Was helpfull your text...needs courage to come and say that a resistance is a resistance and not more than a resistance when some folks thinks it has enormous inductance and huge capacitance too.

We will shock many folks.... i think was not a very good idea to start this conversation.

I was thinking.... the one that have paid enormous money for a Teflon will feel unconfortable.....better not to feed the subject anymore...let them dream and be happy..... this is more important.

I have started the mess...and i will finish with that and now..if someone felt offended i can remove some post, considered annoying or offensive...but this conversations is CLOSED now!

I would invite my beloved friends to cooperate with me... i made a ship to start all that, but i am doing some to finish with the subject...help me, please, to start some conversation about the main thread subject..the Dx Amplifier.

Thank you all, in advance, by the comprehension and i am sorry to disturb some of you with my ideas.

Be sure that even having different ideas, i felt your friendship and interest to talk and discuss with me, extremelly valuable and pleasant to me...i enjoy you all folks, mates i have, fellows, partners into this beautifull long trip to sonics.

I respect your knowledge, even not understanding and having the real life experience you may had...so...we can march together beeing complementary in a very friendly way.

regards,

Carlos
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 11th May 2008, 06:01 PM   #5148
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default One more for the Dx crew.


Guararapes International Airport - Recife - Pernambuco
Brasil

Carlos
Attached Images
File Type: jpg one more.jpg (78.9 KB, 333 views)
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote
Old 12th May 2008, 06:01 AM   #5149
Harry3 is offline Harry3  Australia
diyAudio Member
 
Join Date: Mar 2005
Location: Sydney - Australia
I dont think Carlos is saying that expensive caps do not produce higher frequencies. This may not be what many of you intended to say, but reading the posts they end up being about frequencies that some can and can not hear. I have not yet read where anyone said a regular, say, Nichicon or Panasonic, could not transmit the same frequencies. So you know, there is no argumentative tone here. I just agree with Carlos that there is no music in a capacitor that gets added to the music recorded to your CD. The capacitor or resistor simply allows for a certain amount of capacitance or resistance. Its math. For instance, Black Gate... do they add something to their capacitor other than winding a conductor and an insulator? It would have to be the addition of some musical electrical component, otherwise its nothing different than a Sprague. They all buy their foil and insulator from the same place. Maybe Black Gate is much more accurate with their capacitance. A resistor is a resistor is a resistor. You can make one with a graphite pencil on a piece of paper and put your + and - on it as a pot moving one closer to the other along your pencil drawn line. The inside of a resistor is nothing more than a certain length of carbon. Carbon is not able to be altered. Its an element. The simplest thing on earth. More or less of it could make a difference, but there is no other kind of carbon. Its all just carbon.
I have to eat lunch. This carbon based creature is being called up from the basement.
Uriah

I will say that my Fostex sound way different than the first listen. The first listen was unbearable and unforgettable. Terrible. I played them whenever I would leave the house and after a week or so they sounded much better. But I think that is a different issue since they are something that moves and flexes and may not flex back to the same position every time they are used.
[/QUOTE]


Hi,
Blackgate caps were made by Rubycon using special proprietary material, that no one else used. Do a search on the web and you will get the technical data.
I do not agree that a resistor is a resistror. If you were correct we would not have a need for precision metal film low ppm resistors.
There is an isssue with the material being used in components that cannot be over looked as you have above.

Regards
Harry
  Reply With Quote
Old 12th May 2008, 08:13 AM   #5150
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default Dx Amplifier is the only amplifier that can put "Greek and Troyan" working together

in perfect harmony.... you can use the condenser you conclude as the best.... every capacitor will produce nice sound in this amplifier... it may even sound better if you select better resistances.

The amplifier has excelent sonics qualities, even if you made a mistake and select the worst capacitor on earth.

Build a Dx Amplifier and use Black gates, Teflon units, Silver Mica or ceramics.... and tell me if you dislike it.

Hundreds have built....now a days those units are reproducing alike flu viruses, hundreds are beeing constructed... no one said sounds bad...everybody happy, dancing and feeling good.

I suppose i have found, by accident, and do not know where is the circuit...but i think i have found the "Automatic Capacitor and Resistances effect cancelling system".... ACRACS!... as you can put the one you have (I have black gates here too... also Silver Mica and Teflon...also Panasonic ones.... also metal film) and will sound good.....use the one you prefer...maybe will sound even better.

Sounds very good with the poor condensers and resistances... i think may sound better with better parts.

regards,

Carlos

Attached Images
File Type: jpg dxhriipc7.jpg (61.7 KB, 308 views)
__________________
Power supply; ripple, filter, noise, stability and the use of capacitance multiplier... Portuguese and English; https://www.youtube.com/watch?v=sSm0ku1eIgg
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 06:24 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2