Elliott Sound MOSFET Power Amplifier

rmihai · 17th September 2005, 02:27 PM

I am looking to build this project: http://sound.westhost.com/project101.htm

It seems to be exactlly what I need for my speakers.

Any experiences with it? Any opinions?

Please let me know. Any input HIGHLY aapreciated.

Thank you

pinkmouse · 17th September 2005, 02:48 PM

Did you search?

http://www.diyaudio.com/forums/searc...der=descending

More than enough opinions here I think...

still4given · 17th September 2005, 03:15 PM

The P101 is the first DIY amp I built. I think it sounds absolutely beautiful. I have no problem recommending it to people and it goes together very nicely. Rod is very helpful when needed.

Blessings, Terry

jackinnj · 17th September 2005, 05:11 PM

Hitachi no longer makes the Lateral MOSFETs used in the amplifier -- these are no manufactured by Renesas -- or you can use Exicons.

rmihai · 17th September 2005, 06:56 PM

I know Hitachi stoped manufacturing these latereal Mosfets. but I have a source from someone who bought large quantities more then 10 years ago.

jacco vermeulen · 17th September 2005, 08:40 PM

that would be me

Greg Erskine · 17th September 2005, 09:25 PM

Quote:

Originally posted by jackinnj
Hitachi no longer makes the Lateral MOSFETs used in the amplifier -- these are no manufactured by Renesas -- or you can use Exicons.

Rod actually states in his contuction pages "The ECX10N16 and ECX10P16 or ECX10N20 / ECX10P20 (from Profusion PLC in the UK) are at least as good as the originals - they may even be slightly better."

So there's no problem with output devices.

regards

mandat · 17th September 2005, 10:24 PM

What do you think about Holton's one?
Some time ago there was available schematic of Anthony Holton's MOSFET power amplifier at his homepage.
http://www.aussieamplifiers.com/
This amp scales perfectly up to 800W by paralleling the next complimentary MOSFET pairs.
P: 200W/8 Ohm & 400W/4 Ohm for eight pairs of IRFP240/IRFP9240
BWT: 4Hz - 56kHz (+/-3dB)
S/N unweighted: -122dB (20Hz - 20KHz)
S/N A weighted: -126dB (20Hz - 20KHz)
nominal Vin: 1.2V RMS (dla 200W/8ohm
THD: <0.07% (20Hz - 20kHz) (typ <0.005%)
DF: 200

You can see Holton's amp schematic here (post dated 22 Lip 2004, 10:05)
http://www.audiostereo.pl/forum_wpisy.html?temat=9991
If you are interested in receiving schematic of this amp&PCB, mail me.

You can change original transistors to BC550, BD911/912 and 5 pairs of 2SK1530/2SKJ201 you can get
P: 450W/4 Ohm or 300W/8 Ohm
BWT: +/- 3 dB 18 Hz - 72 kHz
+/- 1 dB 27 Hz - 53 kHz
S/N 92 dB

Upupa Epops · 18th September 2005, 09:26 AM

" Stone age " amps...

PMA · 18th September 2005, 09:48 AM

Upupa - how about this one?

http://web.telecom.cz/macura/tw_40.gif

Do not hesitate to click, it is a full version ..

17th September 2005, 02:27 PM	#1
rmihai diyAudio Member Join Date: Oct 2004 Location: Toronto	Elliott Sound MOSFET Power Amplifier I am looking to build this project: http://sound.westhost.com/project101.htm It seems to be exactlly what I need for my speakers. Any experiences with it? Any opinions? Please let me know. Any input HIGHLY aapreciated. Thank you

17th September 2005, 02:48 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Did you search? http://www.diyaudio.com/forums/searc...der=descending More than enough opinions here I think... __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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17th September 2005, 03:15 PM	#3
still4given diyAudio Member Join Date: Oct 2004	The P101 is the first DIY amp I built. I think it sounds absolutely beautiful. I have no problem recommending it to people and it goes together very nicely. Rod is very helpful when needed. Blessings, Terry

17th September 2005, 05:11 PM	#4
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	Hitachi no longer makes the Lateral MOSFETs used in the amplifier -- these are no manufactured by Renesas -- or you can use Exicons.

17th September 2005, 06:56 PM	#5
rmihai diyAudio Member Join Date: Oct 2004 Location: Toronto	I know Hitachi stoped manufacturing these latereal Mosfets. but I have a source from someone who bought large quantities more then 10 years ago.

17th September 2005, 08:40 PM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	that would be me

17th September 2005, 10:24 PM	#8
mandat diyAudio Member Join Date: Oct 2003 Location: Gliwice	What do you think about Holton's one? Some time ago there was available schematic of Anthony Holton's MOSFET power amplifier at his homepage. http://www.aussieamplifiers.com/ This amp scales perfectly up to 800W by paralleling the next complimentary MOSFET pairs. P: 200W/8 Ohm & 400W/4 Ohm for eight pairs of IRFP240/IRFP9240 BWT: 4Hz - 56kHz (+/-3dB) S/N unweighted: -122dB (20Hz - 20KHz) S/N A weighted: -126dB (20Hz - 20KHz) nominal Vin: 1.2V RMS (dla 200W/8ohm THD: <0.07% (20Hz - 20kHz) (typ <0.005%) DF: 200 You can see Holton's amp schematic here (post dated 22 Lip 2004, 10:05) http://www.audiostereo.pl/forum_wpisy.html?temat=9991 If you are interested in receiving schematic of this amp&PCB, mail me. You can change original transistors to BC550, BD911/912 and 5 pairs of 2SK1530/2SKJ201 you can get P: 450W/4 Ohm or 300W/8 Ohm BWT: +/- 3 dB 18 Hz - 72 kHz +/- 1 dB 27 Hz - 53 kHz S/N 92 dB

18th September 2005, 09:26 AM	#9
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	" Stone age " amps...

18th September 2005, 09:48 AM	#10
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	Upupa - how about this one? http://web.telecom.cz/macura/tw_40.gif Do not hesitate to click, it is a full version ..

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