MF A1, Kudos to Tim de Paravicini, Ode to my Youth, Babelfishing

[Russellc]

Choky,

I like the spectra at 1W 4R. Good work.




View attachment 1371613

Always liked trilogy referring to their smoking mixture as "pipe weed." That Tolkien was a rascal.

 

[hbtaudio]

Dear @Zen Mod ,
is your interpretation of an A1 better than what is currently available for purchase?



With regard to the Klirr spectrum? Personally, of course, everyone likes their own replica and their own tiny modifications best. For example, I like the TIP3055 & TIP2955 - how about a complete MOS-FET A1? From start to finish?



Regards,

HBt.

 

[JeyDee]

I am planning to, via remote wires, lend my dual Aleph J power supplies (+/- 22-23V rails, when loaded down) for the MF A1 Babelfish.

But, what would be the minimum and maximum ballpark recommended rail voltages?

 

[Zen Mod]

is your interpretation of an A1 better

frankly, I'm not familiar with that thread, but from short glance, that's about present regular A1 ........

I believe I wrote enough and gave enough info in opening posts ......... pretty easy to determine differences between measurements of original A1 (link to audiosciencereview), my own slightly tweaked ( graphs posted), present amp iteration ( link to Stereophile) and my Babelfish (with all graphs for "standard" and for proper Iq)

Even ignoring fact that I have criteria of even calling something Babelfish, let alone posting about, only if if I'm sure that there is substantial enough difference to original

mosfets in output - doable, yes .... but why?

that would be just too much difference, lesser Kudos to Tim de P. ............ and not a smidge of any improvement in sound, vs. bipolars in output

 

[Zen Mod]

minimum and maximum

I wouldn't go bellow 18Vdc rails and not above 25Vdc rails, without changes

though, I don't care - changing to higher rails would result in different amp, in fact ........ my interest in this one is, say, fully covered

 

[JeyDee]

Sounds very good. Then all is fine and good with my very smooth running, current, NOW, Dire Straits - Iron hand, playing PSUs.

🎺🙂🎸

 

[JeyDee]

Actually its probably closer to +/- 24V when loaded down with only one amplifier channel for each PSU.

But, then, thats still in the Good Zone. 🙂

 

[Zen Mod]

rails here are practically regular FW format - nominal 24Vdc

correction to my post above - 26-27Vdc with no change

above that, slowly thinking about few changes and actual part dissipation figures

 

[hbtaudio]

Dear great Zen-Master,
I don't want to step on your toes in your thread and in the Nelson Pass forum, so I'll put your interpretation and modification in the general solidstate forum.

Open discussion

I hope you don't mind going through your improved throw /litter. May I say that it is no better than the original? It doesn't matter how nice the PCB or the Schematic looks.
What surprises me is the fact that you use the Pass forum to post a third-party interpretation of the MF-A1 here.

So, don't be angry with me

HBt.audio

 

[JeyDee]

Yah, but? Well chill out. 🙂

If this was about building one REALLY fine music playing amplifier? Just build one of them all. And be done with it, very, very, happily, for the rest of your life!

That is If you are a truely fine builder.

This for me is about different flavours, different character, different tone and different spices to the actual music.

One very important part, the power amplifier, in the music system.

All of them With the smooth flow of class A amplification.

It is for fun. It is for entertainment. It is for the building adventure. It is for the grandest enjoyment in playback of music. 🎺🙂🎸

It is not about Dialysis!

🙂

 

[tombo56]

Open discussion

I prefer relentless amplifiers over relentless analysis (all buzz -> no honey). 😛

 

[JeyDee]

Yea well? 🙂

Remember this. I stole the Entertainment, not Dialysis part from you know who…

Yes….

From Mr. Pass. 🙂

 

[tombo56]

Yea well? 🙂

You didn’t get it. 😎
I prefer completed work presented here over proposed endless theoretical considerations in that another thread, that will not result with anything solid.

 

[JeyDee]

Okey, but now you force me, to be rude, honest, and, i have to tell you how it actually is:

I was not talking to you…

🙂

 

[tombo56]

I was not talking to you…

Quoting text you reply to is a good practice. 😉

 

[hbtaudio]

in that another thread, that will not result with anything solid.

You can't know that at all, or - are you a clairvoyant?


Just wait for the discussion, or join the discussion in my thread.

See you over there,
bye
HBt.

 

[JeyDee]

tombo56,

Yes that is for sure a good practice. But in this instance it was not possible to autoquote myself in the presceding post.

And you simply sneaked yourself in between. 🙂

So Chill. Sh*t happens.

 

[Zen Mod]

I don't want to step on your toes

Far from that ..... my toes are well insensitive for anything intrusive

feel free to contribute wherever you want
If I see something to learn from, be sure that I'll learn
Though, I had my fun with Babelfishing A1 .......... philosophy about amplifiers, I prefer to do that in solitude

 

[Zen Mod]

forgot to note Gain - smidge bellow 19db; meaning ~900mV for 1W@8R

mental slip, in post #13, speaking of B. A1

meant ~900mVpp for 1W@8R, which is ~330mVrms for 2V83rms

always thinking thus making notes in Vpp, often forgetting to translate to Vrms, when dealing with outer world

 

[Zen Mod]

it was not possible to autoquote myself

quite possible, speaking of anyone's last post in thread

select text with left click/drag
it'll pop few small buttons, click on "quote", and you get it in post body

as this:

when dealing with outer world