LME49810, LME49830 or LM4702? BiPolar or Mosfet output?

[bobodioulasso]

Bipolars mj15024 Motorola in a quasi complementary configuration.
2sc5171/2sa1930 as drivers.

 

[sendler]

My email reply was in my spam folder all along

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I still haven't gotten a reply to my emails.

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He did reply to my emails but my server (Verizon) sent them to my spam folder even though it was a reply with my sending address and original text included.
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So all is well.
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I will wait for the M-9810-C+ as he is out of LME49810 until the end of the month. I will also have to order a couple of M-9830-A+ to compare the sound of BJT vs mosfet side by side since no one here has reported on that.
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http://www.chip-pcb.cn/en/M-9810-C+.htm
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http://www.chip-pcb.cn/en/M-9830-A+.htm

 

[AndrewT]

Re: My email reply was in my spam folder all along

I will wait for the M-9810-C+ as he is out of LME49810 until the end of the month. I will also have to order a couple of M-9830-A+ to compare the sound of BJT vs mosfet side by side

I'm planning both as well.

 

[Segran]

I'll be waiting for your results from your comparison and measurements of the two. It will be interesting to see if you come to the same conclusion as I did on my home-brewn amps! 🙂

 

[sendler]

I'll be waiting for your results from your comparison and measurements of the two. It will be interesting to see if you come to the same conclusion as I did on my home-brewn amps! 🙂

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I would rather just take your word for it if you will let us in on the secret.😉

 

[Segran]

Sendler, not much of a secret 😉 as I have already posted my thoughts and results:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=102973&perpage=25&pagenumber=25 ,post 621

http://www.diyaudio.com/forums/showthread.php?s=&threadid=138227&perpage=25&highlight=&pagenumber=1, post 7&8.

Have made minor improvements since then on the MOSFET version, but haven't implemented these yet on the BJT.

 

[sendler]

Final decision for mosfet

Sendler, not much of a secret 😉 as I have already posted my thoughts and results:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=102973&perpage=25&pagenumber=25 ,post 621

http://www.diyaudio.com/forums/showthread.php?s=&threadid=138227&perpage=25&highlight=&pagenumber=1, post 7&8.
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I've spent many, many hours listening to the amp, still one channel MOSFET while the other is BJT. After careful consideration I find the MOSFET sound slightly, but distinctly, more agreeable to my (and my families) ears. Why I don't know but it seems to have something to do with odd/even harmonics.

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Very nice. That is the answer I was looking for when I started this thread. I will now go with the M-9830-B module which is in stock.

 

[fab]

Has someone tried Lateral mosfets instead of Vertical yet?
What about using the 9830 with drivers and BJTs?