Dx Blame ES .... based into the Blameless, i am trying a new amplifier

Status
Not open for further replies.
This is what bothers you.... that i may think i am the best...... now i understand your point.
🙂,better try to think, what is purpose of diode D1 in attached picture.. OR try it in real amplifier, with overdriven amplifier. Something for bootstrap lover.
 

Attachments

  • blam1.png
    blam1.png
    3.5 KB · Views: 383
Last edited:
Carlos

You insult people that tell you things you don't want to hear, by saying they are stupid, can't hold a soldering iron, know nothing about audio etc.

Why do you have to resort to insult, telling lies about people you don't even know.
Is that all you got?
Why do you think you have to care to defend what you are doing anyway.

If it is the worlds best Amp, it will be, no matter what people say. Nothing to defend there.

If it is the best amp you have ever listened to, noone can or wants to take that away from you. Nothing to defend there.

If the amp has "problems" you don't want to fix, so what. Noone cares. Nothing to defend there.
But you pretend the problems are not there (which is perfectly fine), and go insult those who point them out (which is somehow strange).

From time to time you ask for help and then insult the people trying to help you.
You can't get their suggestions to work and conclude from that, that the advice is wrong and the people who gave it are stupid and incompetent, instead of asking what could have gone wrong.
Of course not every suggestion will work ultimately. But not getting it to work doesn't allready mean that it doesn't work at all.
But thats what you conclude and use as a basis for saying, the others are stupid, instead of also considering yourself as a possible source of error.
 
Last edited:
Dear "ignoring" Carlos, try to look some posts as help, not as attack. "Sonics" you prefere are audible results of mistakes in your circuits. And exploded transistors are secondary , too? It is also result of "sonics". Open your mind..
 
Last edited:
Sorry Pavel, i am not reading you.... interests me the ones build things

You conversation is not interesting.... i have readed those last 6 years...really...not good.

Fairwell....be happy...if possible to you.

Oh..... dear AndrewT...i forgot to suggest you to build the Dx Blame ST...you will like it very much...then you can destroy sonics implementing the suggestions the theorists are posting...they hate my beloved amplifier so much that they are trying to destroy the audio quality.

Carlos
 
Last edited:
Dear builders, you that use to visit the thread and read with interest

because of you so many hits in a few monthes..... thank you by your presence.

The bootstrap really is what sounds good together the voltage amplifier stage(s).... i am trying CCS in the fokker.....not a good result...i have tried in the Dx Blame ES and also was not good result... seems it is good for differential, do not know why, but results bad in the VAS...... i am switching a bootstrapp and a CCS to feed the VAS and sonic difference is clear... will give you diagram in the future, together the fokker, then you can try by yourself and realise by yourself..you will agree with me because it is real and audible.

For a while i will try several types of VAS...this way i will be hundred percent sure and will let you know...it is always possible that my VAS is not perfect and not the best one.... because of that i will work....i am lucky i am not lazy..if i was and would following suggestions i would never learn...never realise the reality.

Fokker only sounds so good as the Dx Blame ST, when the VAS is feeded by a bootstrap.....but measure very well, a little bit better, when the CCS is in operation..this shows what represents waveform and sonics... a good, perfect waveform does not produce the best possible sound...also two amplifiers i have checked..the Dx Amplifier, one using CCS and other using Voltage regulator to the differential.... sounded the same, and measured the same too.

Fokker is sounding different, now the case is in the VAS..... CCS measured a little bit better and sounded worse.

This is for you, dear readers, builders, the real diyers..... the theorists will not be readed, not be answered.

I am interested in "what sounds"....if do not sounds...then i have no interest, practice is what i have, what i know and what i want..if sounds..then i am interested..theories does not sound..so, i am not interested.

regards,

Carlos
 
Last edited:
You can talk about theory, about LONG TAIL and SHORT TAIL, about VAS and about whatever and how long you ever want to:
But - you should assemble Carlos' AMPs and listen to them yourself.

My heatsinks finally arrived today and I will set up my BlameST tomorrow:

An externally hosted image should be here but it was not working when we last tested it.


I listened to the BlameES some time ago - Whoowh! - and Volker, who owns it, told me that the BlameES - in the meantime -
competes with a very HighEnd German ASR Emitter AMP driving his B&W 801.

This is the charm and magic about Carlos' AMPs: cheap and easy to build, spectacular and amazing sound.

Does the BlameES confirm to theoretical approaches?

Does not matter - in my eyes - as long as it sounds like it does.

Best regards - Rudi_Ratlos

An externally hosted image should be here but it was not working when we last tested it.
 
Hello Eva by the sea,
I don't follow the DYI pages very often, as most of the posts do not include a schematic diagram of the purported item of wonder. I believe Amplifier design and amplifier opinion are completely different levels of "art" so perhaps excuse those who confuse the issue...
I keep seeing references to Douglas Self and the blameless amplifier. Though I respect Mr. Self and have studied his work closely, if a person builds and simulates his 'blameless" design- it really ain't much.
This is a design of a mirrored front end, with proper current sources, and a competent output configuration. If you, or other DYI members are interested in this implimentation, and use LT spice for circuit simulation, I'd be happy to oblige a working simulation.

Paul Vonharnish
Cauldron Amplifiers
 

Attachments

  • MR58A.jpg
    MR58A.jpg
    325.5 KB · Views: 108
Last edited by a moderator:
I know if hard to find Eva by the sea...but i suggest you to open a thread

this way you will explore, will show, and will have feedback from your amplifier...here, the subject is the Dx Blame ES amplifier..now called ST, because Stable.

People is using the previous version..without problems..... the previous was stable, my transformer was creating the problems...now a days it is very distant from me..not bothering anymore.

You are welcome to show nice designs, will be much better for you, for me and for us, to have your own thread..then people will concentrate in your amplifier..here, despite i the place you find Eva...as she cannot resist to be near me, your amplifier is a little bit of topic.

I use to show my adress, my street, my face, my family, my home, my surroudings..i have anything to be keept hidden, i have not problems with the police, also i leave following the rules the society imposes me..so...i do not need to keep adress hidden, not to receive email or to vanish when someone needs me.

regards,

Carlos
 
Last edited:
They are almost the same....but, the previous one, the Dx Blame ES faced troubles

Latter i found the trouble was caused by a toroidal transformer, a defective one, when replaced the trouble finished....because of that transformer i have included some capacitors trying to control oscilations that was happening when the amplifier was reaching the maximum power when 20 kilohertz, square waves was applied in the input.

The Dx Blame ST (ST means stable) had reduction of several parts, removed the extra capacitors and an important resistance had the value increased..the first VAS transistor had the emitter resistance increased from 100 ohms to 220 ohms.

You should assemble the ST, the last one...the revision 1.5 schematic..because it is electrically more stable than the former one.

Several folks are using the previous model, the Dx Blame ES without have complains...no one has burned...and they have appreciated the sonics very much.

In the reality, my dear friend..that sittuation i was creating in my home, was not something we easily find in daily music listening... such high levels of 20 kilohertz are not usual, also full power, also entering clipping, saturation, also having capacitors em parallel with the output...so... i was really producing a torture.

The last model, the Dx Blame ST, modified one, can face the torture without oscilations..in the reality, removing that hell transformer...even the former model could face the torture too.

regards,

Carlos
 
Status
Not open for further replies.