Sound quality: LM4780 vs LM3886

MWP · 17th August 2004, 11:36 AM

Hi all,
I did search for an answer on this, but all i got was millions of unrelated threads.

Simple question.... which one sounds better?
LM4780 or the LM3886?

Thanks.

tschrama · 17th August 2004, 12:27 PM

Hi,

I build both and I would vote for the LM4780 in bridged config...

efren sabio · 18th August 2004, 08:38 AM

Hi,

How about building both then use each for R & L channels?
I think listening to this kind of set up would be revelatory!

I have built the tda7294 & tda1514 and I want to try 3886.

Efren

Lars Clausen · 18th August 2004, 09:42 AM

Take a look on this site: http://www.elmatrd.ro/amplificatoare.html

If you want to experiment with chip amplifiers, the romanian company seem to have some good offers. For example the 2x40W kit is just 9$.

1 million Romanian money = 30$

And what about the 1 x 100 W kit with 2N3442 for just 9$. Incredibly cheap! Did anyone try this stuff?

Lars

sayang001 · 18th August 2004, 10:22 AM

This reminds me of some stuff I saw in Indonesia, usually the pcb quality / soldering is poor, and no-name or even fake components are used.

Jay · 18th August 2004, 11:47 AM

Quote:

Originally posted by MWP
Simple question.... which one sounds better?
LM4780 or the LM3886?

That's not simple...

I have built plenty of chip amps but I can't say which one is better than which. For every single chip there are many possible implementations and setups.

But I dare to say that LM1875 is sheet. Golden eared fellows should be able to disqualify this cheap from the other chips mentioned above

In my implementation of LM4780 and LM3886, I enjoyed the LM4780 a lot more.

MWP · 18th August 2004, 12:14 PM

Well it seems it doesnt really matter now.

I cant find a good source for LM4780's in Australia, so it looks like the LM3886 will be it.

Eeek, 16 * LM3886T's is going to hurt the wallet

squadra · 18th August 2004, 02:46 PM

Quote:

Originally posted by MWP
Well it seems it doesnt really matter now.

I cant find a good source for LM4780's in Australia, so it looks like the LM3886 will be it.

Eeek, 16 * LM3886T's is going to hurt the wallet

I have ordered mine from Apex Jr.
You could check if there are some left

richie00boy · 18th August 2004, 04:20 PM

Quote:

Originally posted by Lars Clausen
Take a look on this site: http://www.elmatrd.ro/amplificatoare.html

If you want to experiment with chip amplifiers, the romanian company seem to have some good offers. For example the 2x40W kit is just 9$.

1 million Romanian money = 30$

And what about the 1 x 100 W kit with 2N3442 for just 9$. Incredibly cheap! Did anyone try this stuff?

Lars

That 100W amp is just £4.80! OK it looks really cheap, but the design looks pretty good (certainly could have made it less parts). Would be great for a sub amp. Wonder how much shipping to England is...

glennb · 28th September 2004, 07:48 AM

The LM3886 and LM4780 use the same silicon die, LMP3886AT. There are two of them in the LM4780. They should therefore sound almost identical.

I've done a fair bit of technical research into the LM4780, see my web page at http://home.pacific.net.au/~gnb/audio/lm4780.html

Cheers, Glenn.

17th August 2004, 11:36 AM	#1
MWP diyAudio Member Join Date: Oct 2002 Location: Adelaide, South Australia	Sound quality: LM4780 vs LM3886 Hi all, I did search for an answer on this, but all i got was millions of unrelated threads. Simple question.... which one sounds better? LM4780 or the LM3886? Thanks.

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17th August 2004, 12:27 PM	#2
tschrama diyAudio Member Join Date: Jul 2001 Location: The Netherlands	Hi, I build both and I would vote for the LM4780 in bridged config...

18th August 2004, 08:38 AM	#3
efren sabio diyAudio Member Join Date: Aug 2003 Location: hongkong	Hi, How about building both then use each for R & L channels? I think listening to this kind of set up would be revelatory! I have built the tda7294 & tda1514 and I want to try 3886. Efren

18th August 2004, 09:42 AM	#4
Lars Clausen diyAudio Member Join Date: Oct 2003 Location: The Lab	Take a look on this site: http://www.elmatrd.ro/amplificatoare.html If you want to experiment with chip amplifiers, the romanian company seem to have some good offers. For example the 2x40W kit is just 9$. 1 million Romanian money = 30$ And what about the 1 x 100 W kit with 2N3442 for just 9$. Incredibly cheap! Did anyone try this stuff? Lars

18th August 2004, 10:22 AM	#5
sayang001 diyAudio Member Join Date: Mar 2003 Location: Amsterdam	This reminds me of some stuff I saw in Indonesia, usually the pcb quality / soldering is poor, and no-name or even fake components are used.

18th August 2004, 12:14 PM	#7
MWP diyAudio Member Join Date: Oct 2002 Location: Adelaide, South Australia	Well it seems it doesnt really matter now. I cant find a good source for LM4780's in Australia, so it looks like the LM3886 will be it. Eeek, 16 * LM3886T's is going to hurt the wallet

28th September 2004, 07:48 AM	#10
glennb diyAudio Member Join Date: May 2004 Location: Melbourne	The LM3886 and LM4780 use the same silicon die, LMP3886AT. There are two of them in the LM4780. They should therefore sound almost identical. I've done a fair bit of technical research into the LM4780, see my web page at http://home.pacific.net.au/~gnb/audio/lm4780.html Cheers, Glenn.

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