LM3886 vs TDA7294 - 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
Reply
 
Thread Tools Search this Thread
Old 27th November 2005, 07:18 PM   #1
Tobruk is offline Tobruk  Italy
diyAudio Member
 
Join Date: Oct 2005
Default LM3886 vs TDA7294

Hi,
which sounds better...?
Thanks in advance....
  Reply With Quote
Old 28th November 2005, 02:48 AM   #2
Leolabs is offline Leolabs  Malaysia
diyAudio Member
 
Leolabs's Avatar
 
Join Date: Dec 2004
Location: Bukit Mertajam
Send a message via MSN to Leolabs
Depends on matching speaker.Hard to tell which is better.


Dont mind change your user name to El Alamein,hehe
  Reply With Quote
Old 28th November 2005, 05:18 AM   #3
diyAudio Member
 
Join Date: Mar 2005
Location: Indonesia
Hi there,i'm eager to build this 7294's amp to compare with my LM3886.3886 has a great sound but i don't know about TDA 7294 sound. Can 7294 beat 3886??i still don't know. Some people said that 7294 better than 3886. But, i still very happy with my gainclone 3886.
regards
---------
TomZ
  Reply With Quote
Old 28th November 2005, 05:27 AM   #4
Jay is offline Jay  Indonesia
diyAudio Member
 
Join Date: Feb 2003
Location: Jakarta
It's different. 7294 is more flat throughout audio band. It's also a bipolar vs mosfet issue here. Mosfet amp doesn't easily satisfy listener. It needs suitable driver and may be speaker, and of course specific requirement.

Most listener (about 70% I guess) will prefer the 3886. But I like 7294 better than 3875. Haven't done a "fair" comparison with 3886 tho. I guess most listener will prefer 3886 over 3875
  Reply With Quote
Old 28th November 2005, 05:33 AM   #5
Jay is offline Jay  Indonesia
diyAudio Member
 
Join Date: Feb 2003
Location: Jakarta
Hi thomgun,

Please remember that ICs have "classes". The worst class is fake IC. Almost all (famous) IC you can get in the market (Jakarta especially) is not first class. So beware of that.

3886/3875 is available only during last year. And I haven't seen a bad "class" of 3886 yet. But 7294 has been in the market for so many years.
  Reply With Quote
Old 28th November 2005, 05:46 AM   #6
diyAudio Member
 
Join Date: Mar 2005
Location: Indonesia
Hi Jay!! How was ur project?After u said to me if u like TDA7294's sound, i want to try that chip. After search some article i found that this chip is DMOS. Maybe i will get the sound of a MOSFET with a simple schematic.
Maybe this cheap can beat LM3886's chip.
But, the biggest problem about this project, there is many fake chip. Difficult to find original chip.
Jay,is TDA7294 a very common IC in our country?

regards
---------
TomZ
  Reply With Quote
Old 28th November 2005, 05:55 AM   #7
diyAudio Member
 
Join Date: Mar 2005
Location: Indonesia
Ok JAY.But,it is difficult to find the original 7294.
I got 3886's IC from my friend which order this ic from NATIONAL directly.So,I'm sure i got original 3886.It's dangerous if our system using fake IC. The worst case is, this fake IC can be explode.

How to know which is original and fake IC?
  Reply With Quote
Old 28th November 2005, 06:02 AM   #8
diyAudio Member
 
Join Date: Mar 2005
Location: Indonesia
I'm also heard that 7294 have 2 version.How about that?
  Reply With Quote
Old 28th November 2005, 06:15 AM   #9
sangram is online now sangram  India
diyAudio Member
 
Join Date: Sep 2002
Location: India
7294 has higher power and drive capability than 3886. Also very very robust chips, specially if they're genuine (Elektor had some kits, those chips are 100% genuine) - mine has lasted about 8 years, driving different types of speakers and now doing bass amp duty in a band...

However it's horses for courses, and since they're not too expensive to build, ideally you should build both and check which one you prefer. I myself prefer building 7294 for others and National's line for myself. That way I get to tell people - 'These are the chips in the famous BOSE Acoustimass system' and they go 'Ahhhhhhh'. I bet they'll think that 47Labs is some cheap roadside outfit.
  Reply With Quote
Old 28th November 2005, 11:05 AM   #10
diyAudio Member
 
Join Date: Oct 2004
Quote:
Originally posted by sangram
7294 has higher power and drive capability than 3886.
According to the application notes the power supply voltage are about the same and there is a 1.5 amp difference in current.


tda7294 +/-40 10A
lm3886 +/-42 11.5A

lm3886 might deliver more power.
  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
LM3886 vs TDA7294 panson_hk Chip Amps 19 29th December 2007 06:40 PM
300watts Amplifier with TDA7294 or LM3886 Sebby Solid State 26 23rd September 2007 09:42 AM
compare TDA7294 & LM3886 billy Solid State 2 12th April 2002 12:02 AM


New To Site? Need Help?

All times are GMT. The time now is 05:39 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