Studio Reference Amplifier

[alex mm]

...... part marked in orange it's DB3 (diac) wich it's part of crowbar protection on output amplifier
Regards Alex.

 

[wiljj78]

DB3 Diac SeriesBreakover voltage
3: V typ = 32V

http://www.electronicecircuits.com/wp-content/uploads/2010/04/DB3-Diac-trigger-diode.jpg

...... part marked in orange it's DB3 (diac) wich it's part of crowbar protection on output amplifier
Regards Alex.

Thank you guys....

Regards,
Wiljj78

 

[samratsarkar]

Best Pre amp for SR-200

Dear Sir,
I would like to know the best pre amp design for this amp.
Please share a link of the pre amp.

Regards,
Samrat

SR50 is Studio Ref Amp for small studio monitors without cascode in VAS.

 

[overpower]

use the standard Power Guide.
Maximum output power ~ total device Pmax divided by 4 to 6.
For low voltage into a 4ohms speaker use 4 to 5.
5pr of 150W (a1943/c5200), gives Pmax = 1500W. Divide this by 5 to give 300W into 4ohms.

Using 5pr of 250W devices (mj21193/4) with good high voltage SOA, the Pmax = 2500W.
Giving 500W into 8ohms. A very different amplifier resulting from using a very different output device.

Why is forgotten such a Semelab`s MG6330/6331/6333 and compliment parts MG9410/9411/9413?
They are far better than MJ(L) On-Semis.
I can`t compare the incomparable - 2SA/2SC devices have a different nature, compared to the MJ(L). For example: they are already 10*times lower Ft.
But ON produces better devices than MJ(L)

 

[Junie]

Let me share photos of my SR200 paired with Tibi's Input selector. You can find my preamp build from here: http://www.diyaudio.com/forums/anal...r-volume-controlers-source-selections-85.html

 

[apexaudio]

Let me share photos of my SR200 paired with Tibi's Input selector. You can find my preamp build from here: http://www.diyaudio.com/forums/anal...r-volume-controlers-source-selections-85.html

Very nice, what about sound?
Regards

 

[Junie]

Mile it's studio reference sound

 

[apexaudio]

Mile it's studio reference sound

Yes, but you listen music at home

 

[thimios]

sr200 studio refer.

Hi mr apex i want to make a sr200 studio ref.
I have some MAT02 two pairs 2sa1295 and two pairs 2sc3264 .
I see to another post the version for sr200 with 2sa1216 and 2sc2922.
I want to have your opinion .
Thanks for all.
best regards.

 

[apexaudio]

Hi mr apex i want to make a sr200 studio ref.
I have some MAT02 two pairs 2sa1295 and two pairs 2sc3264 .
I see to another post the version for sr200 with 2sa1216 and 2sc2922.
I want to have your opinion .
Thanks for all.
best regards.

MAT02 is NPN, you need PNP transistor for SR200.
Regards

 

[thimios]

sr200 studio refer.

oh sorry i see more circuits and i worked on many amplifiers this days and i am confused.i have make nmos200.QUASI'S NMOS200 - YouTube and elektor. "Giesberts HEXFET AMP" hexfet amplifier - YouTube yesterday so......
This morning i make PCB for yours sr 200 studio ref. version with 2sa1216.....2sc2922.

 

[apexaudio]

oh sorry i see more circuits and i worked on many amplifiers this days and i am confused.i have make nmos200.QUASI'S NMOS200 - YouTube and elektor. "Giesberts HEXFET AMP" hexfet amplifier - YouTube yesterday so......
This morning i make PCB for yours sr 200 studio ref. version with 2sa1216.....2sc2922. View attachment 353876

Nice PCB

 

[thimios]

sr200 studio refer.

Thanks Mr .
I look forward to hearing these amplifier.
The problem is that i have only+/-55v at this time ,can i use this low voltage just for testing?
regards.

 

[apexaudio]

Thanks Mr .
I look forward to hearing these amplifier.
The problem is that i have only+/-55v at this time ,can i use this low voltage just for testing?
regards.

Yes +/-55V will be good and it is not 'only'
Regards

 

[thimios]

sr200 studio refer.

Thanks Mr that is good news
2 pairs 2sa1295, 2sc3264 with +/-55v

see you later when i finish this .
I hope soon..

 

[thimios]

sr200 studio refer.

Sorry Mr Apex become annoying but you did not the bigger question.
If I told you suggest me your best amplifiers, what would you recommend?

 

[apexaudio]

Sorry Mr Apex become annoying but you did not the bigger question.
If I told you suggest me your best amplifiers, what would you recommend?

AX11

 

[Arif Budiyanto]

Let me share photos of my SR200 paired with Tibi's Input selector. You can find my preamp build from here: http://www.diyaudio.com/forums/anal...r-volume-controlers-source-selections-85.html

I am soooo envy.....

 

[thimios]

sr200

Me too but Μr APEX confused me at all
In truth he sees AX11 better and more favourite amplifier???
The name sr200 studio reference what mean????

 

[Junie]

Well "I" preferred SR200 compared to my Symasym and DXmkIII, the Sr200 has tight/speed bass and clearly emphasizing mid/high. I cannot claim it's better than the rest since everyone of us has it's own opinion and after all our EARS are the judge. I'm building VSSA of Andrej and will make a comparison too.