amp selection?

albireo13 · 3rd August 2010, 08:22 PM

I'm fascinated by the discussions here, especially regarding class A power amp designs. I'm thinking of building one ... 15-20watt/ch into about 8ohms. Which design would be a good reference to start with? I can look into tweaks and mods.

Thx,
Rob

Melon Head · 3rd August 2010, 09:21 PM

F5

vdi_nenna · 6th August 2010, 02:09 PM

The F5 is fantastic. The Mini Aleph is also good starting point. It can be scaled to your wattage requirement. Chipamp.com has boards on sale right now. Looking to get some myself.

tmblack · 6th August 2010, 10:18 PM

I would start with a simple one like a BA-1 as a reference. Also depends on the speaker you are driving and your budget.

Bill Fuss · 7th August 2010, 12:08 PM

Aleph J is my favorite. It does depend on taste and listening habits. The F5 was not my cup of tea but it is a fine amp non the less.

Don't underestimate the heatsink requirements with any of the Class A designs.

albireo13 · 7th August 2010, 12:32 PM

I've been doing searches on different suggestions and it takes awhile to wade through all the postings. Is there somewhere where schematics are posted of different designs?
That would be a great thing to have .. an archive of different design schematics.

Rob

Bill Fuss · 7th August 2010, 12:48 PM

Hi Rob,

In a perfect world it would be a great idea, but nowadays there are too many willing to steal someone's intellectual property for commercial gain. Stolen designs from Pass pop up on Ebay almost every day. You will have to continue reading the threads and give us more hints about what would suit you, and your preferences.

There is plenty of help available if you decide to jump in.

3rd August 2010, 08:22 PM	#1
albireo13 diyAudio Member Join Date: Feb 2010	amp selection? I'm fascinated by the discussions here, especially regarding class A power amp designs. I'm thinking of building one ... 15-20watt/ch into about 8ohms. Which design would be a good reference to start with? I can look into tweaks and mods. Thx, Rob

6th August 2010, 02:09 PM	#3
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA Blog Entries: 1	The F5 is fantastic. The Mini Aleph is also good starting point. It can be scaled to your wattage requirement. Chipamp.com has boards on sale right now. Looking to get some myself. __________________ I build, therefore I am.

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3rd August 2010, 09:21 PM	#2
Melon Head Banned Join Date: Nov 2006	F5

6th August 2010, 10:18 PM	#4
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	I would start with a simple one like a BA-1 as a reference. Also depends on the speaker you are driving and your budget.

7th August 2010, 12:08 PM	#5
Bill Fuss RIP Join Date: Oct 2005 Location: Central Florida	Aleph J is my favorite. It does depend on taste and listening habits. The F5 was not my cup of tea but it is a fine amp non the less. Don't underestimate the heatsink requirements with any of the Class A designs.

7th August 2010, 12:32 PM	#6
albireo13 diyAudio Member Join Date: Feb 2010	I've been doing searches on different suggestions and it takes awhile to wade through all the postings. Is there somewhere where schematics are posted of different designs? That would be a great thing to have .. an archive of different design schematics. Rob

7th August 2010, 12:48 PM	#7
Bill Fuss RIP Join Date: Oct 2005 Location: Central Florida	Hi Rob, In a perfect world it would be a great idea, but nowadays there are too many willing to steal someone's intellectual property for commercial gain. Stolen designs from Pass pop up on Ebay almost every day. You will have to continue reading the threads and give us more hints about what would suit you, and your preferences. There is plenty of help available if you decide to jump in.