best mosfer complimentar pair for lme49830 output

cka3o4nuk · 3rd May 2011, 02:08 PM

Hello dear community looking for advice
now i building amps for mid-bass and sub-bass parts of my 4-way
some time ago i ve compared Toshiba and Renaissance variants for output
with Toshiba bass much more controlled and deeper bass
it has less rds on and more slope (steepness)
what for irf and other?
they will work 30-65hz and 65-600hz

ATAUDIO · 3rd May 2011, 02:43 PM

Ehm, seems IR ones have some issues on bass, at least according to this Thread
Bob Cordell's Power amplifier book
@Audio

lineup · 3rd May 2011, 02:45 PM

What supply voltage you have?
I think the usual IRFP240/IRFP9240 should work.
Follow the schematic for details.

cka3o4nuk · 3rd May 2011, 02:51 PM

shematic based on the apnote from national
http://www.national.com/an/AN/AN-1850.pdf
2sk1530 and 2sj201 already working i look for something best

ATAUDIO · 03:02 PM

Quote:

Originally Posted by cka3o4nuk

they will work 30-65hz and 65-600hz

With such low bass that you are looking for I would be tempted to short out C1. Of course then you should work out some kind of DC protection...
Let's see what's coming, I am intersted to such circuit, too
@Audio

3rd May 2011, 02:08 PM	#1
cka3o4nuk diyAudio Member Join Date: Aug 2008	best mosfer complimentar pair for lme49830 output Hello dear community looking for advice now i building amps for mid-bass and sub-bass parts of my 4-way some time ago i ve compared Toshiba and Renaissance variants for output with Toshiba bass much more controlled and deeper bass it has less rds on and more slope (steepness) what for irf and other? they will work 30-65hz and 65-600hz

3rd May 2011, 02:45 PM	#3
lineup diyAudio Member Join Date: Dec 2005 Location: the north	What supply voltage you have? I think the usual IRFP240/IRFP9240 should work. Follow the schematic for details. __________________ lineup

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3rd May 2011, 02:43 PM	#2
ATAUDIO diyAudio Member Join Date: May 2011 Location: Wien	Ehm, seems IR ones have some issues on bass, at least according to this Thread Bob Cordell's Power amplifier book @Audio

3rd May 2011, 02:51 PM	#4
cka3o4nuk diyAudio Member Join Date: Aug 2008	shematic based on the apnote from national http://www.national.com/an/AN/AN-1850.pdf 2sk1530 and 2sj201 already working i look for something best

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