150W MOSFET Amplifier with IRFP250x2 - Page 13

44250 · 07:03 PM

AX12(B80) in progress:

Hope i will soon finish it and tell something about it´s power and sound,the NX sounds great,it has a lot of power and very very clear sound in all stages,and i am very happy to have an amplifier as NX!

44250 · 23rd December 2011, 07:12 PM

And one more thing,the AX12 will work at 2 x 50-60W of power due to smaller transformer power. I am building it to hear how it works,and to hear how the darlingtons work in pair!

apexaudio · 23rd December 2011, 09:07 PM

Nice progress, with single pair of outputs and without overcurrent detect new pcb can be very small.
Regards

nazirdigi · 28th January 2012, 07:14 PM

Quote:

Originally Posted by apexaudio

For all aplication especialy for subwoofer I recomend you Kelvin amplifier without VI limiter. You also need active X-over for subwoofer.

hi apex sir,
can u share the kelvin amp pcb top and bottom layer in pdf.

44250 · 29th January 2012, 09:12 AM

Quote:

Originally Posted by 44250

And one more thing,the AX12 will work at 2 x 50-60W of power due to smaller transformer power. I am building it to hear how it works,and to hear how the darlingtons work in pair!

AX12

APEX AX12 u 44250 izvedbi/done by 44250 strano - YouTube
APEX AX12 u 44250 izvedbi/done by 44250 doma?e - YouTube

44250 · 29th January 2012, 09:24 AM

One more thing-i was listening this amplifier yesterday whole day,and in a few moments in a few songs i was pleasantly surprised how deep can it go! One thing is for sure-this amplifier that i have built deserves a proper transformer and more than 10 000uF per rail in PSU,to get it´s maximum performance although it sound good as it is. Cheap and very very good amplifier-I RECOMMEND IT!

apexaudio · 30th January 2012, 10:13 PM

Quote:

Originally Posted by 44250

One more thing-i was listening this amplifier yesterday whole day,and in a few moments in a few songs i was pleasantly surprised how deep can it go! One thing is for sure-this amplifier that i have built deserves a proper transformer and more than 10 000uF per rail in PSU,to get it´s maximum performance although it sound good as it is. Cheap and very very good amplifier-I RECOMMEND IT!

Nice work, but you post in wrong thread. AX12 is from thread: 100W Ultimate Fidelity Amplifier
Regards

44250 · 31st January 2012, 08:22 AM

Quote:

Originally Posted by apexaudio

Nice work, but you post in wrong thread. AX12 is from thread: 100W Ultimate Fidelity Amplifier
Regards

Done!

100W Ultimate Fidelity Amplifier post #1154

Sorry for mistake...

23rd December 2011, 07:12 PM	#122
44250 diyAudio Member Join Date: Jan 2011 Location: Ugrinovci-Zemun-BELGRADE	And one more thing,the AX12 will work at 2 x 50-60W of power due to smaller transformer power. I am building it to hear how it works,and to hear how the darlingtons work in pair! __________________ I'm sorry for possible grammar errors... visit http://www.facebook.com/profile.php?id=100002606156494 http://www.facebook.com/media/albums...32238633531205

23rd December 2011, 09:07 PM	#123
apexaudio diyAudio Member Join Date: Feb 2010 Location: Serbia	Nice progress, with single pair of outputs and without overcurrent detect new pcb can be very small. Regards __________________ http://www.facebook.com/APEXaudio.MileSlakovic

29th January 2012, 09:24 AM	#126
44250 diyAudio Member Join Date: Jan 2011 Location: Ugrinovci-Zemun-BELGRADE	One more thing-i was listening this amplifier yesterday whole day,and in a few moments in a few songs i was pleasantly surprised how deep can it go! One thing is for sure-this amplifier that i have built deserves a proper transformer and more than 10 000uF per rail in PSU,to get it´s maximum performance although it sound good as it is. Cheap and very very good amplifier-I RECOMMEND IT! __________________ I'm sorry for possible grammar errors... visit http://www.facebook.com/profile.php?id=100002606156494 http://www.facebook.com/media/albums...32238633531205

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