High Power Chip Amp

Mark Allen · 28th September 2009, 04:43 AM

Is there a design here for a high power Chip Amp? Say three or four chips in parallel. The single chip amps just doesn't quite cut it for me or my Dynaudios... I have seen several from Asia on E-Bay but am extremely hesitant to order from China because of all the rights infringement going on over there.

Thanks for any suggestions,

Mark

mjf · 07:51 AM

hello.
there are some designs with tda7294 (or tda 7293 ,or lm3886) in parallel........
search in the forums.........
greetings.......

peranders · 08:33 AM

Alexw88 has made a triple LM3886 board and I have made a bridge unit so you can connect 6 pcs. of LM3886. Check my sig about BPA300 Round 3 group buy.

More info can be found in the application note AN-1192

Alexw88 website

Mark Allen · 29th September 2009, 03:07 PM

Am still trying to figure out if I can aquire all the same SMT compoments over here or not without having to buy huge quantities... The project looks really good though, I especially like the idea of the Lundahl transformers!! I can get those out of Canada.

Mark

star882 · 29th September 2009, 03:20 PM

For that much power, it really makes sense to go with a hybrid digital. The initial and operation costs would be much lower.

AndrewT · 29th September 2009, 04:14 PM

or go fully discrete or use LME49811 + discrete triple EF output stage.

Mark Allen · 29th September 2009, 04:55 PM

Guys... and Gals,

I am only wanting to build one because it's a project I have not done yet. I've always been intreguied by the thought of those chips in parallel and I once had the chance to sit and listen to the Rowland amp for a while which was a definite knock out!!! Digital... sure... but later on when it's perfected.

Mark

star882 · 29th September 2009, 05:51 PM

The new hybrid digitals (which are much different from the pure digitals) are very easy to get working and get you smug, not smog.

enzoR · 30th September 2009, 10:02 PM

star, you dont make sense :S

pacificblue · 1st October 2009, 11:31 AM

star882 is on the quest to bless the entire world with class D amps. I don't know, if he has a financial interest in it, but he wants to bring switched amp luck and happiness upon all solid state and chipamp affectionates, whether they want it or not.

28th September 2009, 04:43 AM	#1
Mark Allen diyAudio Member Join Date: Jan 2008 Location: Bountiful, You-Taw	High Power Chip Amp Is there a design here for a high power Chip Amp? Say three or four chips in parallel. The single chip amps just doesn't quite cut it for me or my Dynaudios... I have seen several from Asia on E-Bay but am extremely hesitant to order from China because of all the rights infringement going on over there. Thanks for any suggestions, Mark

28th September 2009, 07:34 AM	#2
mjf diyAudio Member Join Date: Jan 2009 Location: upper austria/near linz	hello. there are some designs with tda7294 (or tda 7293 ,or lm3886) in parallel........ search in the forums......... greetings....... Last edited by mjf; 28th September 2009 at 07:51 AM.

28th September 2009, 08:23 AM	#3
peranders Electrons are yellow diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 1	Alexw88 has made a triple LM3886 board and I have made a bridge unit so you can connect 6 pcs. of LM3886. Check my sig about BPA300 Round 3 group buy. More info can be found in the application note AN-1192 Alexw88 website __________________ /Per-Anders (my first name) or P-A as my friends call me BPA300 Group Buy Round 4, SMD-kit and DRV134 pcb, checking interest Sign up HERE Rectifier bridge RFB03 Group Buy Round 2, checking interest Sign up HERE Last edited by peranders; 28th September 2009 at 08:33 AM.

29th September 2009, 03:20 PM	#5
star882 diyAudio Member Join Date: Mar 2007	For that much power, it really makes sense to go with a hybrid digital. The initial and operation costs would be much lower. __________________ Get OpenOffice.org!

29th September 2009, 04:14 PM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	or go fully discrete or use LME49811 + discrete triple EF output stage. __________________ regards Andrew T.


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29th September 2009, 03:07 PM	#4
Mark Allen diyAudio Member Join Date: Jan 2008 Location: Bountiful, You-Taw	Am still trying to figure out if I can aquire all the same SMT compoments over here or not without having to buy huge quantities... The project looks really good though, I especially like the idea of the Lundahl transformers!! I can get those out of Canada. Mark

29th September 2009, 04:55 PM	#7
Mark Allen diyAudio Member Join Date: Jan 2008 Location: Bountiful, You-Taw	Guys... and Gals, I am only wanting to build one because it's a project I have not done yet. I've always been intreguied by the thought of those chips in parallel and I once had the chance to sit and listen to the Rowland amp for a while which was a definite knock out!!! Digital... sure... but later on when it's perfected. Mark

29th September 2009, 05:51 PM	#8
star882 diyAudio Member Join Date: Mar 2007	The new hybrid digitals (which are much different from the pure digitals) are very easy to get working and get you smug, not smog. __________________ Get OpenOffice.org!

30th September 2009, 10:02 PM	#9
enzoR diyAudio Member Join Date: Mar 2008	star, you dont make sense :S

1st October 2009, 11:31 AM	#10
pacificblue diyAudio Member Join Date: May 2008	star882 is on the quest to bless the entire world with class D amps. I don't know, if he has a financial interest in it, but he wants to bring switched amp luck and happiness upon all solid state and chipamp affectionates, whether they want it or not. __________________ If you've always done it like that, then it's probably wrong. (Henry Ford)

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