SF Amplifier

[OnAudio]

Its not quite an F5. Coming soon

 

[OnAudio]

There is a smart diamond in there driving a mosfet output

Guesses and or approximations on what will be posted are welcome

 

[manso]

So what is new ???

 

[OnAudio]

Thank you manso,

Let me not lean towards new. You see there are many ways to bake the same cake . Even using the same technique different bakers achieve a distinct signature.

kind regards,

Harrison.

So what is new ???

 

[OnAudio]

Not quite SKA, but using same output devices. Might possibly possess greater authority and grip ?

Now post those ideas

 

[OnAudio]

inception

Pardon me for posting such a humble concept . Simulations, ideas, comments, worries , concerns welcome.

kind regards,

Harrison.

 

[boyet0173]

Pardon me for posting such a humble concept . Simulations, ideas, comments, worries , concerns welcome.

kind regards,

Harrison.

Hi Harrison,

Interested to know how sound quality compared to other front end topology

Regards,
Boyet

 

[OnAudio]

Hi Boyet,

At this point in time I can only give projections. The diamond stage has its own characteristics. The mosfets have their own characteristics. There may be something about the behaviour of the diamond stage that the mosfets need.

kind regards,

Harrison.

Hi Harrison,

Interested to know how sound quality compared to other front end topology

Regards,
Boyet

 

[OnAudio]

I did put in a few hours, the checker however raised a few flags which will be addressed as time goes by.

 

[Jay]

I think the opamp will be the limiting factor. Good for those who already own hi perf opamp. To buy new i dont think so.

 

[OnAudio]

Hi Jay what the checker flagged was a probable weakness in the diamond topology

 

[OnAudio]

Transfered post six from paper to simulator. looks promising but still very young.

 

[OnAudio]

a forgotten design, are you still around lazy cat, didn't pursue it any further

 

[AKSA]

Keep going Harrison......
This is pretty good!
HD

 

[xrk971]

I think the opamp will be the limiting factor. Good for those who already own hi perf opamp. To buy new i dont think so.

Would bootstrapping the opamp to allow use of same +/-40v rails help?

Surjan Dogran's Easy Peasy 70v peak-peak Opamp for $1

https://m.eet.com/media/1152270/24127-45890.pdf

OnAudio: Nice design, would you mind posting .asc file for sim shown below?

Thanks,
X

 

[OnAudio]

Thanks

Keep going Harrison......
This is pretty good!
HD

 

[OnAudio]

Would bootstrapping the opamp to allow use of same +/-40v rails help?

Surjan Dogran's Easy Peasy 70v peak-peak Opamp for $1

https://m.eet.com/media/1152270/24127-45890.pdf

You could regulate the opamps supply from the higher rails

OnAudio: Nice design, would you mind posting .asc file for sim shown below?

Thanks,
X

Will check my library

 

[OnAudio]

Sorry don't have it

OnAudio: Nice design, would you mind posting .asc file for sim shown below?

Thanks,
X

 

[OnAudio]

Did anyone continue work on this, if am correct it might sound good, although not optimized yet

 

[OnAudio]

In readiness for the royal show down with POC, yes kinda got renamed from science fiction SF to FS, still the same