High power gainclones?

Racket Scientist · 25th January 2011, 10:57 PM

Are there any high power gainclone variants out there (meaning more than 100 wpc into 8 ohms)?

wwenze · 11:35 PM

http://www.national.com/an/AN/AN-1192.pdf

Part 7, starting from page 9

Racket Scientist · 26th January 2011, 12:45 AM

Thank you so much for the helpful reply!

AndrewT · 26th January 2011, 10:32 AM

No,
there are National approved combination implementations that allow the extra current to be supplied to inappropriate loads that a chip amp was never designed for.

Why do National publish these BA, PA and BPA implementations?
I'd suggest to sell many more chips.

You would do far better to look at a better National product for higher powers and lower load impedances. The LME498xx series of driver chips with discrete output devices.

Original Burnedfingers · 26th January 2011, 10:59 AM

Can't you use the chip amp to drive a output stage composed of say MJ15024 and MJ15025's? and have the output stage running off a higher voltage?
I would think this would work and would save the complexity of a paralled bridged chip amp setup.

suntechnik · 26th January 2011, 11:27 AM

LME49811, LME49830 are specially designed OPAMPs to drive discrete output stage.

25th January 2011, 10:57 PM	#1
Racket Scientist diyAudio Member Join Date: Jan 2010	High power gainclones? Are there any high power gainclone variants out there (meaning more than 100 wpc into 8 ohms)?

25th January 2011, 11:32 PM	#2
wwenze diyAudio Member Join Date: Mar 2008	http://www.national.com/an/AN/AN-1192.pdf Part 7, starting from page 9 Last edited by wwenze; 25th January 2011 at 11:35 PM.

26th January 2011, 10:32 AM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	No, there are National approved combination implementations that allow the extra current to be supplied to inappropriate loads that a chip amp was never designed for. Why do National publish these BA, PA and BPA implementations? I'd suggest to sell many more chips. You would do far better to look at a better National product for higher powers and lower load impedances. The LME498xx series of driver chips with discrete output devices. __________________ regards Andrew T.

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26th January 2011, 12:45 AM	#3
Racket Scientist diyAudio Member Join Date: Jan 2010	Thank you so much for the helpful reply!

26th January 2011, 10:59 AM	#5
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Can't you use the chip amp to drive a output stage composed of say MJ15024 and MJ15025's? and have the output stage running off a higher voltage? I would think this would work and would save the complexity of a paralled bridged chip amp setup.

26th January 2011, 11:27 AM	#6
suntechnik diyAudio Member Join Date: Jun 2010 Location: St. Petersburg	LME49811, LME49830 are specially designed OPAMPs to drive discrete output stage.

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