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Old 19th June 2010, 10:23 AM   #11
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I saw that it is not a MOSFET amplifier but the spec look fine .
Also, it is compatible with my power supply

I still haven't found any MOSFET project to suit my needs.

I am not a beginner in electronics, but have much more experience in digital electronics and embedded design and programming.

Anybody with a reference towards a good MOSFET amplifier?
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Old 19th June 2010, 10:43 AM   #12
AndrewT is offline AndrewT  Scotland
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It looks to me that you have not bothered to look up either the ESP site, nor the Quasi Thread.
What do you want?
A delivery to the doorstep!
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Old 19th June 2010, 12:09 PM   #13
Bone is offline Bone  United Kingdom
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Here's one for you AN948 from International Rectifier:
Complete with PCB.
Attached Files
File Type: pdf 60W Hexfet.pdf (66.3 KB, 118 views)
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Old 19th June 2010, 05:14 PM   #14
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Default Not quite so..

Quote:
Originally Posted by AndrewT View Post
It looks to me that you have not bothered to look up either the ESP site, nor the Quasi Thread.
What do you want?
A delivery to the doorstep!
I have searched for a good amplifier design, including ESP pages, but the PCB is not available for free. I can make the PCB myself, I don't need to buy it. I am looking for a complete project description and information just like the Leach amp, Symasym, etc.

I do not have time to build several amps until I get satisfied with one of them.

That's why I've joined the forum, to have others opinion, to build an amp that others claim that works, which fits my power supply, not to get anything delivered at my doorstep!!

I think i will build the Symasym finally.

Thanks so far for the references!
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Old 19th June 2010, 06:54 PM   #15
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Here 300W amp, IRFP240/9240
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Old 19th June 2010, 07:47 PM   #16
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Quote:
Originally Posted by dolhastelian View Post
I have searched for a good amplifier design, including ESP pages, but the PCB is not available for free. I can make the PCB myself, I don't need to buy it. I am looking for a complete project description and information just like the Leach amp, Symasym, etc.

I do not have time to build several amps until I get satisfied with one of them.

That's why I've joined the forum, to have others opinion, to build an amp that others claim that works, which fits my power supply, not to get anything delivered at my doorstep!!

I think i will build the Symasym finally.

Thanks so far for the references!
I apologize for forum folks behavior. I have been through this fire fight for days with some guys, that can't understand our good intention.
But don't be upset. Most of them are nice ones, and will help you. Guys like apexaudio (Mile), for example.
All you have to do is build your amp and post the results.
For a complete project, with PCB and all you need (except parts and assembling!...), take a look here: Greg's Web Site
I have built the DX Blame ST, that uses -35+35Vdc rail voltages, and sounds superbly. You may also find good advice here: Dx Blame ST - Builder's thread - post pictures, reviews and comments here please. and here: Dx Blame ES .... based into the Blameless, i am trying a new amplifier
Have a nice stay in this forum.
All the best,
Max.
(sorry for rough english)
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Old 19th June 2010, 07:50 PM   #17
jandr49 is offline jandr49  United Kingdom
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I've just built SymAsym 5.3 as a first amp using only the project page and the original thread. They gave me everything I needed and I had no problems, however I had to modify the PCB pad spacing slightly to fit available components. I'm very pleased with it but can't compare its performance as its the first decent amp I've had.

HTH

Richard
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Old 19th June 2010, 08:26 PM   #18
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Quote:
Originally Posted by dolhastelian View Post
I found Symasym project on the web.

Has anyone built this amp?

Are the specifications real?

I would like to built it. Any comments?

Thank you!
Hi dolhastelian,

The Symasym has been an extremely popular amp here at DIYAudio.

The main thread can be found here:

http://www.diyaudio.com/forums/solid-state/60918-explendid-amplifier-designed-michael-bittner-our-mikeb.html

To find the thousands of other posts about this amp use search.

Select Search (top right hand corner)
Select Advanced search
Type Symasym
Select Search Titles Only
Press [Search now]

regards
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