I really do not care about amplifier topology. I want to design amplifier using topology that I knew. Make them as best as I can. It is about DIY audio. If you think all amplifiers sound same, it is likely you do not belong to this forum.
Several member can design CFA amplifier with very low THD, high slew rate, etc. Why the other jealous? Because they can not? 😀 😀 😀
Several member can design CFA amplifier with very low THD, high slew rate, etc. Why the other jealous? Because they can not? 😀 😀 😀
Here is simulated only, non global NFB PA using a current conveyor as the gain block and EC OPS. Never built.🙁
GainWire-NGNFB-classB-PowerAmp
Damir
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Thanks Scott, I never received nicer compliment and yet from best professional
electronic designer I know.
Damir
Too sad, Damir. Why did you abandon this project?* Power Amps without negative global feedback are not legion. It was an occasion to verify the validity of the "GNFB is bad" legend.
* (I can understand, we cannot be everywhere and building amps is more difficult with age. ;-)
Lets prototype and later build that one also. We can compare with Scotts CFB or even a CMA.
THx-RNMarsh
Why not your facility in Thailand to prototype it, if you want to make a business with it in the end?
All good 🙂, RNM now in his retirement has all the facilities anyone could want to get new projects and designs up, if Mr Obstropolous were to quit his gaslighting and put his self assessed 'superior' intellect toward a new design I am sure Richard would have no trouble bringing it to testing stage, we will see what evolves.
Dan.
Dan.
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I don't know, Joe can make a dynamic speaker perform more like an electrostatic by adding a zobel and you guys are arguing about semantics? 😉
Without level match or double blind.
It shows 07 05 2015 and 28 01 2017. Didn't you move since then? In such case, it should've been "where I did", no?
Who discovered gravity?
Who invented the Wheatstone bridge?
Who invented the electric light?
Who invented the Wheatstone bridge?
Who invented the electric light?
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yep I just moved 3 months ago and all my test gear shipped by boat. I should have it soon here. Never-the-Less, i can show you where i will do all same things. Right now I am bread boarding in my office. want to see my office, too? Geez guy. I have 4 EE here plus others. One just finished a streaming DAC.
Get a clue. I got better things to do than play games with you and Scott. put up something substantial your selves.
magnetaudio - “ Streaming DAC ”By Magnet...
-RNM
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Like any other serious and competent DIYer
. Anyways, if they can't design and prototype a high power CMA for you, you should consider firing them, they are no good....and what were you saying you are doing on this forum?
Might be, that I'm missing something, but IMO Tournesol was starting at the actual drive mechanism and worked backwards from that.
I don't want to repeat the discussion about the benefits of current drive (in the case of speaker drivers with moving coils) but it seems that current-drive indeed is able to reduce some speaker distortions.
So, to me it is less of an argument about the amplifier, but just about the driver in the speaker.
From that point of view an electrostatic speaker (which incorporates usually an push-pull electrostatic construction) - working best , based on the theory and corrobated by measurements afair, if no charge is moved during the operation - which of course is practically impossible but approximated.
Therefore it seems to be less likely that current drive will provide any benefits.
Mhm..... 🙂
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You should open yours, you will be able to distribute your good or bad points and "fire" those who displease you.
May-I propose-you a title ? "Hater's corner".
No risk of desertification.
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I confirm.
it is difficult to get, from outside, an idea of a transducer's mechanism and its characteristics if it is mounted in a sealed multiway active enclosure ;-)
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