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Old 11th December 2012, 03:45 PM   #141
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In a word - none of them.

If you want a reasonable cheapie amp then go the chip-amp route. BUT there is so much better out there.
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Old 11th December 2012, 03:49 PM   #142
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could you please give some detailed info regarding the better options ?
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Old 11th December 2012, 06:22 PM   #143
Mooly is offline Mooly  United Kingdom
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csom........

I think you would find an LM3886 based amp a major step up from any of the TDA2030/50 devices.

As to opamps, the 5532 used correctly is very good but it can bettered sonically in certain circuits (I'm thinking I/V conversion and the like). I would suggest trying something like the OPA2134 as an alternative.

You might be better starting a new thread/s to address all your different questions
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Old 11th December 2012, 06:57 PM   #144
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Quote:
Originally Posted by Mooly View Post
csom........

I think you would find an LM3886 based amp a major step up from any of the TDA2030/50 devices.

As to opamps, the 5532 used correctly is very good but it can bettered sonically in certain circuits (I'm thinking I/V conversion and the like). I would suggest trying something like the OPA2134 as an alternative.

You might be better starting a new thread/s to address all your different questions
Thank you for your kind response and advice, Mooly.
I am astonished to see the NE5532 performance in my Preamp and Eq section. Infact I am really very very pleased with the result. So quiet and natural sounding. I am eagerly awaiting the availabilty of OPA2134 in my locality just to play with them as I read many good things about them on net

I am amazed to see that my casual diy Chip amp hobby project is outperforming my costly mosfet setup !! And I am moving to chip amp henceforth no more discrete for me

And as per your advice on LM3886, now I am decided to give them a try in no time and keep you updated about my learning /progress /problems if any in a new thread

Just one question, do i need to make six sets of LM3886 or i can use TDA2050 for high-pass section to drive the tweeters?

Best regards,
Som
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Old 11th December 2012, 07:13 PM   #145
bcmbob is offline bcmbob  United States
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If you are not in a hurry, let me suggest waithing till after the first of the year when the final version of the MyRef Freemem Edition will be available. It is well supported and is simply the best sounding amp I have owned over a forty year history.
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Old 11th December 2012, 07:22 PM   #146
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If you are not in a hurry, let me suggest waithing till after the first of the year when the final version of the MyRef Freemem Edition will be available. It is well supported and is simply the best sounding amp I have owned over a forty year history.
Oh thank you Bob,
I sure can wait! Since I am more than happy with my current preamp and Eq section, i can play with different chips for the time being when i have some time and some credentials )
And indeed i am so eager to try your masterpiece too. Thank you for the link to your awesome thread. I will be a daily visitor there
Best Regards,
Som
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Old 11th December 2012, 07:47 PM   #147
bcmbob is offline bcmbob  United States
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Wish I could take the credit, but the design is from Dario Inserra. I'm just the Senior Vice President of the propaganda department.

Dario wouldn't do it so, I just gave myself the position.
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Last edited by bcmbob; 11th December 2012 at 07:50 PM.
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Old 11th December 2012, 09:19 PM   #148
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I wonder why people have worked so hard on the MyRef series and still haven't upgraded the project to a high quality driver chip with high end outputs?
Hi Daniel,

simply because a My_Ref with discrete high-end outputs is simply a Musical-Fidelity A370 and no driver chip is necessary...

Click the image to open in full size.
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File Type: jpg MF A370 Sch.jpg (223.3 KB, 316 views)
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Old 11th December 2012, 10:33 PM   #149
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I wonder if you could do that with LM318 pushing TDA7293 in slave mode (not using the TDA7293's onboard predrive at all)?
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Old 11th December 2012, 10:40 PM   #150
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Originally Posted by danielwritesbac View Post
I wonder if you could do that with LM318 pushing TDA7293 in slave mode (not using the TDA7293's onboard predrive at all)?
According Mauro Penasa, first My_Ref versions (not published) were TDA based but only with the LM3886 he found the right chip for his goals.
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