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Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
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Old 14th July 2018, 11:57 PM   #21
Zen Mod is offline Zen Mod  Serbia
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Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
now , on to measurements

first 25W/8R

at that level (40Vpp) there is I think is some compression of sine crests , easily read in THD figure

remember crappy caps

Papa sez 25W/8R @ 1% THD for regular M2
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Old 14th July 2018, 11:59 PM   #22
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then Papa sez 40W/4R @ 1% THD

let's see that
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Old 15th July 2018, 12:00 AM   #23
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Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
let's try 50W/4R , can we get 1% THD ?
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Old 15th July 2018, 12:01 AM   #24
Zen Mod is offline Zen Mod  Serbia
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Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
I simmed some 21W as magic number on 2R , while still being in A class ;

let's see that :
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Old 15th July 2018, 12:06 AM   #25
Zen Mod is offline Zen Mod  Serbia
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that's it for tonight

will try on Monday to observe Klunk!! region via scope , across inline resistor or simply across rail wire ;

I'm not overly optimistic , caps being on sluggish side , but I'll try

in any cse , simply observing THD behavior , I think it is safe saying that simulations are confirmed , bloody thing being in A class in this brackets:

25W/8R
43W/4R
21W/2R

few watts up , or down .......


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Old 15th July 2018, 01:34 AM   #26
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Default just to add Posters

then maybe get some sleep .......



(seen exquisite ones in Mr. MR's listening room)
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Old 15th July 2018, 02:28 AM   #27
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Old 15th July 2018, 02:44 PM   #28
Russellc is offline Russellc  United States
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Babelfish M25 , AKA M2 on steroids , AKA M2-XA25 bstrd
Quote:
Originally Posted by Zen Mod View Post
that day I was able to complement just 10W tests .... couldn't get more at 8R , due to EMU output swing (non)capability

so :

10W/8R

10W/4R

10W/2R
What sort of measuring tools and setup are you using for these measurements? Might be helpful for "Adjusting P3 thread".....

Thanks,

Russellc
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Old 15th July 2018, 02:54 PM   #29
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I was realy gnawing about that through entire thread ... EMU1212 and interface box,shown up
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Old 16th July 2018, 11:25 AM   #30
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is amp that scary looking , so no comments ?
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