Official M2 schematic

[jps1964]

Encore une fois: Don-Audio is official distri. Wait and see..

Jean-Paul

 

[generg]

And do not forget the price is so cheap it is almost like giving them to you. It is hard to find a good meal at the price of two. The biggest cost is going to be shipping to Europe.

Exactly!

 

[jborden]

There are similarities between the input JFET section of the M2, and the Zen I-V, similarly the transformer and the "No DAC". It occurs that an M2 like circuit might be tied to the output of a DAC chip, or the DSC1 shift register/resistor ladder section and filter out the DSD clock (10-20 MHz)


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[jps1964]

... text font changed...

what is the nominal M2 V+/-?

Jean-Paul

 

[2 picoDumbs]

... text font changed...

what is the nominal M2 V+/-?

Jean-Paul

Anywhere between 22V and 24V

 

[jps1964]

PSU (for one channel):
- 1x 300VA toroid transformer
- 4x STPSC1206D (SiC 600V@12A TO220)
- 1x 10000µ (MKP bypassed)
- 1x 159ZJ
- 1x 15000µ (MKP bypassed)

What do you think?

Jean-Paul

 

[2 picoDumbs]

PSU (for one channel):
- 1x 300VA toroid transformer
- 4x STPSC1206D (SiC 600V@12A TO220)
- 1x 10000µ (MKP bypassed)
- 1x 159ZJ
- 1x 15000µ (MKP bypassed)

What do you think?

Jean-Paul

Zen Mod would say what's with the sissy capacitors.

you'll need 2 x 10000u and 2 x 15000u to create +/-22V power rails
I'd go with 4 x 15000u per channel bare minimum. Aaah just make it 8 x 15000u per channel

 

[jps1964]

... and using CMC?

WE-CMBNC Stromkompensierte Netzdrossel Nanokristallin - Produktkatalog Passive Bauelemente

Jean-Paul

 

[2 picoDumbs]

... and using CMC?

WE-CMBNC Stromkompensierte Netzdrossel Nanokristallin - Produktkatalog Passive Bauelemente

Jean-Paul

2603 or 2105 look good. I'm no expert on chokes, you could increase mH a bit more but then Ir comes down, best to keep a healthy safety margin.

Zen Mod could advise with more experience.

 

[WalterW]

I guess ZM is going to say no,no for ferrite...

 

[Zen Mod]

they're perfect as fuse

 

[2 picoDumbs]

My guess is at 100/120Hz rectified DC they filter nothing.

 

[jps1964]

... request for quotation done! Waiting for answer...

Jean-Paul

 

[jps1964]

... DON-AUDIO answer:
- 3 to 4 weeks for delivery
- 19€ netto one piece

Jean-Paul

 

[2 picoDumbs]

... DON-AUDIO answer:
- 3 to 4 weeks for delivery
- 19€ netto one piece

Jean-Paul

Is this pcb or transformer?
Is that for an order quantity of one pair?

What if you order 20 pairs? Any change to price for higher quantity?

 

[ElFishi]

EDCOR-USA quote 56 USD for shipping of 20 pieces (43 USD for shipping two).
Add 19% Einfuhrumsatzsteuer and a batch of ten pairs would come around 20 EUR each plus German postage. Not sure if customs are due once the order is over 150 EUR.

 

[generg]

As far as I know the custom fees are due beginning with around 50€.....

 

[ElFishi]

Falls Sie jedoch einen günstigeren Preis für einen Selbstimport kalkuliert haben (mit Beachtung aller Versand- und Nebenkosten), können Sie uns gerne kontaktieren. Wir rekalkulieren dann den Preis und erstellen für Sie ein indivduelles Angebot. Wir freuen uns auf Ihre Edcor- Bestellung. Don-Audio

Source:
https://www.don-audio.com/Neu-Edcor-transformer-Europa-Vertrieb-1

 

[generg]

Don't try to convince me, I like to order at Edcor USA

......🙂))))

 

[ElFishi]

As far as I know the custom fees are due beginning with around 50€.....

AFAIK:
imports to EU:

• total value (incl. shipping) < 22 EUR : no fees
• 22 EUR <= tv < 150 EUR: +19% Einfuhrumsatzsteuer = VAT
• 150 <= tv: + VAT + customs

customs could be 3.7% but the regulations are confusing.