LM3875, LM3876 or LM3886? Which one produces better sound? - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
View Poll Results: Which one of these chips produces better sound?
LM3875 21 51.22%
LM3876 3 7.32%
LM3886 17 41.46%
Voters: 41. You may not vote on this poll

Reply
 
Thread Tools Search this Thread
Old 19th August 2011, 11:58 AM   #1
diyAudio Member
 
Join Date: May 2008
Default LM3875, LM3876 or LM3886? Which one produces better sound?

In your opinion, which one of these chips is more pleasant to the ear? The LM3875, the LM3876 or the LM3886?
  Reply With Quote
Old 19th August 2011, 12:15 PM   #2
diyAudio Member
 
digits's Avatar
 
Join Date: Apr 2011
LM1875. then lm3875 then the 3886, have not played with the 3876
  Reply With Quote
Old 24th August 2011, 11:43 AM   #3
diyAudio Member
 
Join Date: May 2008
Thanks! I think I will consider using the LM3876 instead of the LM3886, since it is a version of the LM3875 with mute. Indeed the LM3875 has better S/N ratio than the LM3886, and the efficiency doesn't differ that much.

The only experience I have is with the LM3875. I will play with the '76 and see if there is any difference. I need the mute feature for my next project.
  Reply With Quote
Old 24th August 2011, 02:09 PM   #4
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
The typ & max noise (ein) is quoted as 2uV & <8uV {3875} cf. 2uV & <10uV {3886}, indicating they have very similar ein noise values.
When converting the S/N ratios, it appears that for the 3875, the ein ~=1.8uV and for the 3886, the ein ~= 2.4uV.

Both of these are close to the typ figures and seem to confirm that the 3875 is indeed slightly less noisy when tested to fig2 schematic.
__________________
regards Andrew T.
  Reply With Quote
Old 26th August 2011, 11:38 PM   #5
diyAudio Member
 
terranigma's Avatar
 
Join Date: Feb 2007
Quote:
Originally Posted by AndrewT View Post
The typ & max noise (ein) is quoted as 2uV & <8uV {3875} cf. 2uV & <10uV {3886}, indicating they have very similar ein noise values.
When converting the S/N ratios, it appears that for the 3875, the ein ~=1.8uV and for the 3886, the ein ~= 2.4uV.

Both of these are close to the typ figures and seem to confirm that the 3875 is indeed slightly less noisy when tested to fig2 schematic.
But you still prefer discrete? It would be informative if some solid-state person share an opinion about these chips and National's other LME4981X driver stages.
  Reply With Quote
Old 28th August 2011, 03:40 PM   #6
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
I prefer what can drive the load properly.
Chipamps do well @ low power and/or with high efficiency speakers.
Above that I move to the chip driver + output stage or full discrete. But even with these the amplifier must be selected and built to suit the duty.
__________________
regards Andrew T.
  Reply With Quote
Old 29th August 2011, 11:06 PM   #7
diyAudio Member
 
Join Date: Aug 2011
Location: Hilly Hastings, UK
Total noob question here, Is it possible to run 6 LM1875 as a left channel, and 6 as a right, with 1 direct 240 Volt input? running the amps on 25 watts each, getting 150 WPC at 8ohm, with 1.25 amps. and how would i wire it, parrallel or in series? (I've never built an amp before)
  Reply With Quote
Old 29th June 2014, 05:48 PM   #8
diyAudio Member
 
Join Date: Oct 2011
Default My vote for the LM3875

Quote:
Originally Posted by cumesoftware View Post
In your opinion, which one of these chips is more pleasant to the ear? The LM3875, the LM3876 or the LM3886?
I have built and heard both the LM3875 and LM3886 gainclone amplifiers and I must say I prefered the LM3875 it sounded more refined, warmer, sweeter etc. It was also quieter. The LM3886 just didn't give the same level of satisfaction i.e. nothing to write home about. I guess the better S/N ratio helps the LM3875 bring out the fine details in the music. Another promising gainclone IC you might want to look at is the LM4780 there are a lot of praises for this part amongst the DIY community and elsewhere in this forum.
  Reply With Quote
Old 29th June 2014, 05:53 PM   #9
JMFahey is online now JMFahey  Argentina
diyAudio Member
 
JMFahey's Avatar
 
Join Date: Mar 2009
Location: Buenos Aires - Argentina
They *may* measure VERY slightly different but any microscopic differences will not be apparent to the ear.
Any "evidence" to the contrary is purely anecdotical.
Finding one "warmer" than anoither is nonsense and 150% subjective.
VERY MUCH doubt anybody can tell one from the other in a blind test.
Sorry.
  Reply With Quote
Old 29th June 2014, 07:07 PM   #10
Mihkus is offline Mihkus  Estonia
diyAudio Member
 
Mihkus's Avatar
 
Join Date: Jul 2012
They all sound very similar but when I have to build small and cheap amp that sounds fairly good Id go for 3875 because it has everything you need.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Difference in sound, LM3886, LM3875 despotic931 Chip Amps 10 22nd June 2008 07:58 AM
LM3876 vs. LM3875 Wynand Chip Amps 3 12th July 2005 09:03 PM
Is LM3875 better tham LM3876 goldyrathore Solid State 12 12th July 2005 08:53 PM
LM3886 vs LM3875, difference in sound? Circlotron Chip Amps 4 14th April 2003 01:51 PM
LM3875/LM3876 load question. JoeBob Solid State 17 17th December 2001 05:04 AM


New To Site? Need Help?

All times are GMT. The time now is 10:48 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2