LM3886 Vs LM4702 which is better in terms of quality and stability?

rhythmdiy · 31st October 2007, 03:13 PM

which one gives better quality, stability and power I would like to hear pros and cos of these two ultimate products...

can anybody explain about it?

thanks,
Ken

SpittinLLama · 31st October 2007, 10:02 PM

Completely different products.

LM3886 - chipamp, simple, fully integrated, fully protected. Limited to about 60W output power per IC. Sounds pretty good.

LM4702 - driver stage, requires discrete output stage, no protection for output stage at all (only thermal shut down for itself), sounds great when complete amplifier is done right.

Might want to read over the datasheets and learn more.

-SL

Dxvideo · 1st November 2007, 12:37 PM

Quote:

Originally posted by SpittinLLama

sounds great when complete amplifier is done right.

I am doubtful about that! I made a LM4702B amplifier with matched 2SK1058/2SJ162 pairs and high quality parts. But I am not satisfied from its sound..
May be bacause of using without buffer. But now I cannot advice that.

SpittinLLama · 1st November 2007, 11:10 PM

Dx.

You made one design with one type of FET?

Try BJT output stage and compaer. Try adding buffer stage. Try Toshiba 2SK1530/2SJ201 and compare. Try darlington output stage and compare. Try the LME49810 with all the above also and compare. Have done all this. These parts can sound great but that is also subjective so it just depends on how much time & money one wants to invest.

-SL

31st October 2007, 03:13 PM	#1
rhythmdiy diyAudio Member Join Date: Dec 2006	LM3886 Vs LM4702 which is better in terms of quality and stability? which one gives better quality, stability and power I would like to hear pros and cos of these two ultimate products... can anybody explain about it? thanks, Ken

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31st October 2007, 10:02 PM	#2
SpittinLLama diyAudio Member Join Date: Apr 2005 Location: In the Wild, Wild West	Completely different products. LM3886 - chipamp, simple, fully integrated, fully protected. Limited to about 60W output power per IC. Sounds pretty good. LM4702 - driver stage, requires discrete output stage, no protection for output stage at all (only thermal shut down for itself), sounds great when complete amplifier is done right. Might want to read over the datasheets and learn more. -SL

1st November 2007, 11:10 PM	#4
SpittinLLama diyAudio Member Join Date: Apr 2005 Location: In the Wild, Wild West	Dx. You made one design with one type of FET? Try BJT output stage and compaer. Try adding buffer stage. Try Toshiba 2SK1530/2SJ201 and compare. Try darlington output stage and compare. Try the LME49810 with all the above also and compare. Have done all this. These parts can sound great but that is also subjective so it just depends on how much time & money one wants to invest. -SL

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