I would guess subtle phase variations would determine the SQ in LF.
You would not see this on a lowly scope.
Electrically , this might be the woofers interaction between a CFA FB
network versus a DC blocker cap or a servo.
Capless NFB designs do have the better bass. Objectivists would discount
this , but they either don't have the equipment to measure it ... or
have not cranked a "spooky" amp.
OS
OS,
Isn't that one of the major differences between the VFA and CFA, the feedback loop being done with caps or resistors? I would have thought that would favor the CFA but you seem to prefer the VFA for the bass, that somewhat confuses me.
Isn't that one of the major differences between the VFA and CFA, the feedback loop being done with caps or resistors? I would have thought that would favor the CFA but you seem to prefer the VFA for the bass, that somewhat confuses me.
OS,
Have you looked at the Semelab MG6330-R/ MG9410-R output devices? They are rated 260V/ 15A/ 200W.
I see Allied Electronics lists them at $2.48 each.
Have you looked at the Semelab MG6330-R/ MG9410-R output devices? They are rated 260V/ 15A/ 200W.
I see Allied Electronics lists them at $2.48 each.
The difference between my auditioned kypton C , wolverine , and present
spooks are the fact that only the spook is servo'ed.
The other two have electrolytic DC feedback.
As I said before , I prefer the spook .
I DO want to try the Kypton ND , it handles DC same as the spook .
OS
Tested while drunk (with power)....
OMG -
The V3 slew is AWESOME ! Good to party with ...
Stay's cool.
Carl - the ON 3281/1302 would "floor you'. One extremely
powerful amp ... OMG !!!
"corporation approved" for sure !! 😱😎😎
OS
OMG -
The V3 slew is AWESOME ! Good to party with ...
Stay's cool.
Carl - the ON 3281/1302 would "floor you'. One extremely
powerful amp ... OMG !!!
"corporation approved" for sure !! 😱😎😎
OS
For the 2sa1381 2sc3503 I have both E and F rank parts. Any advantage/disadvantage to using the higher hFE parts?
Thanks,
Evan
PS. I have quite a few of these if people need some.
Thanks,
Evan
PS. I have quite a few of these if people need some.
I'm using E's and D's. It's a triple - current gain is already 100K+ ,
You might be 200k+ , Evan.
BTW , these new amps run nearly 8C cooler with the same case
and extrusions. I attribute this to the better HS USA AL and the
output distribution.
Really abused these amps last night.
I'm hard to please , but with these I'm impressed.
Evan , I'd save the E's to match with mouser E's (for VAS's).
OS
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I just have two , that cats brother "lounges" at the back of the PC's
power supply. Neither will chew on the wires (like JW's cat).
OS
Real life slewmaster build is lunched....I need to purchase some more electoniqc parts so i begun casing build : Project is about two mono bloc with each one Rcore 500Va 2x36V trafo and 18mF-0R2 10W-15mF filtering. For cas building i use MDF that will be primed with epoxy resin and than painted in white with automotiv 2K paint sprayguned. This afternoon i cut the differents MDF case pieces from sheet i had in stock. I join you under the project sketches, and first picture from cases. They need a lot more work before thay can host Slewmaster electronics...
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Hi evan did you plan to build some case in the way the work you show in your web pages? I wish i had a little amout of you talent and probably wood work equipement. I love wood work but handling raw wood in a little car basement garage is quite complicated....
Marc
my first few amps had nice case work....Since then I have gotten lazy. I may need to get off my a$$....These amps are worth the time.
E
Took a look at your web page...You also do some very nice work.
E
Took a look at your web page...You also do some very nice work.
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The two latest are gorgeus. I always falling in love with those Wood/Aluminum mix. I can't work with raw wood so the only solution for my is vennering but it became quite silly to deal with when i have to handel with cut off in middle of the pieces....
My Nmos 200
Marc
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Those last two are the most unique I've ever seen. I could only imagine
what your speakers look like ! 😱
OS
Nice veneer work Evan. I know how difficult that can be. Evan are your cabinets maple, that looks like curly maple in the pictures?
Here is a cabinet I made for a friend of mine, a graphic designer, he needed something out of the ordinary.
Sorry the pictures are so bad. That is Carpathean Elm Burl. Don't even ask the price of that veneer it was insanely expensive.
Here is a cabinet I made for a friend of mine, a graphic designer, he needed something out of the ordinary.
Sorry the pictures are so bad. That is Carpathean Elm Burl. Don't even ask the price of that veneer it was insanely expensive.
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