Lm3875 vs lm3886 - Page 2

ratza · 19th November 2009, 01:36 PM

I also have 8 ohm speakers and LM3886. The difference between LM3886 and LM3875 is minor, do not expect huge differences. Just pick one and build it.

fredex · 20th November 2009, 11:07 AM

I have built a LM3886 amp. It is 'blameless' compared to other amps. I think the sound you get is more to do with the power supply, caps, wiring etc. There is nothing much to complain about the chip itself which is as good as it gets I think.
cheers

hybridfiat · 20th November 2009, 01:47 PM

I vote LM3875. Ive made several of both and the LM 3875 is small but undoubtably there. Sound is better, the build is easier and simple.

ted4412wilt · 20th November 2009, 04:43 PM

Has anyone measured the response and distortion of LM3875 and LM3886 amplifiers? I wonder if the midrange for the LM3875 is boosted to give a more appealing if incorrect sound? National's graphs do not show any superiority of LM3875.

livenicely · 20th November 2009, 04:58 PM

Can we believe in national engineers schematic in lm3875 data sheet that it is professional . or they are more in markeeting than pro.

lanchile · 20th November 2009, 07:28 PM

Quote:

Originally Posted by ted4412wilt

Has anyone measured the response and distortion of LM3875 and LM3886 amplifiers? I wonder if the midrange for the LM3875 is boosted to give a more appealing if incorrect sound? National's graphs do not show any superiority of LM3875.

I build both amps carefully, and I used the best method to do the test...My ears!.I do not care if the LM3875/LM3886 has 0.000000009% distortion if at the end it is going to sound not so pleasant to my ears.Do not get me wrong here,That was just an example only. I am not saying that LM3886 sounds bad at all.But to my ears LM3875 sounds better But again,maybe to your ears the LM3886 is going to sound better.I even did some tests with some friends against good commercial amps like Acurus Di 100 (integrated) Portal Panache, Adcom 510 and the Bryston B60.Call me crazy but These IC's can kick some a$$.Some people say these chips are found in cheap radios,TV, speakers etc.But no matter where these chips are used or the price of these IC's that does not mean these IC's are bad.one thing is for sure....if they are used properly, they can give excellent results.LM3875 and LM3886 are very good IC's to build amps no doubt!.

planet10 · 21st November 2009, 04:18 PM

None of the above. LM1875 in my experience.

dave

livenicely · 25th November 2009, 03:30 PM

Poll results as compare to replies confusing

ratza · 26th November 2009, 05:58 AM

I told you that the difference is minimal. Choose LM3886 if you intend to drive 4 ohm speakers.

CJ900RR · 26th November 2009, 11:43 AM

As lanchile says, your ears is the best way to test! All our ears and flavours is different and you need to find out which one you like best, by building one of each and use your ears.

Personally, I think the difference is:

LM3886: More details, a bit harsh. But thats the way I like it.
LM3875: Humble, more soft in the sond. Good, but to gentle for my taste.

So, what's your taste?

View Poll Results: Best IC For Sound Quality?
LM3886	67	53.60%
LM3875	41	32.80%
TDA7294	17	13.60%
Voters: 125. You may not vote on this poll

19th November 2009, 01:36 PM	#11
ratza diyAudio Member Join Date: Dec 2007 Location: Sibiu, Romania	I also have 8 ohm speakers and LM3886. The difference between LM3886 and LM3875 is minor, do not expect huge differences. Just pick one and build it. __________________ Any solution is a compromise.

20th November 2009, 01:47 PM	#13
hybridfiat diyAudio Member Join Date: May 2008	I vote LM3875. Ive made several of both and the LM 3875 is small but undoubtably there. Sound is better, the build is easier and simple. __________________ Entia non sunt multiplicanda praeter neccissitatem

21st November 2009, 04:18 PM	#17
planet10 diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	None of the above. LM1875 in my experience. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

26th November 2009, 05:58 AM	#19
ratza diyAudio Member Join Date: Dec 2007 Location: Sibiu, Romania	I told you that the difference is minimal. Choose LM3886 if you intend to drive 4 ohm speakers. __________________ Any solution is a compromise.


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20th November 2009, 11:07 AM	#12
fredex diyAudio Member Join Date: Jul 2005 Location: New Zealand	I have built a LM3886 amp. It is 'blameless' compared to other amps. I think the sound you get is more to do with the power supply, caps, wiring etc. There is nothing much to complain about the chip itself which is as good as it gets I think. cheers

20th November 2009, 04:43 PM	#14
ted4412wilt diyAudio Member Join Date: Jun 2006 Location: Columbia, MO	Has anyone measured the response and distortion of LM3875 and LM3886 amplifiers? I wonder if the midrange for the LM3875 is boosted to give a more appealing if incorrect sound? National's graphs do not show any superiority of LM3875.

20th November 2009, 04:58 PM	#15
livenicely diyAudio Member Join Date: Nov 2009	Can we believe in national engineers schematic in lm3875 data sheet that it is professional . or they are more in markeeting than pro.

25th November 2009, 03:30 PM	#18
livenicely diyAudio Member Join Date: Nov 2009	Poll results as compare to replies confusing

26th November 2009, 11:43 AM	#20
CJ900RR diyAudio Member Join Date: Jan 2006	As lanchile says, your ears is the best way to test! All our ears and flavours is different and you need to find out which one you like best, by building one of each and use your ears. Personally, I think the difference is: LM3886: More details, a bit harsh. But thats the way I like it. LM3875: Humble, more soft in the sond. Good, but to gentle for my taste. So, what's your taste?

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