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Old 18th December 2010, 08:53 PM   #471
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Quote:
Originally Posted by jef9200 View Post
Hi, Apex.. i've try the regulated supply with a chinese kit (jims audio) that i couldn't make work correctly. Surprise !! works good now ! too much trebble for my taste, too cristalin ; but that'is a other story ! (Kef104AB).
Now i have to try one of your amp ...AX14 or FX100 ???
Now can you compare sound of AX14 and 'Jims Audio' ?
Regards
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Old 18th December 2010, 11:51 PM   #472
asia is offline asia  Philippines
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Originally Posted by apexaudio View Post
You can adjust output DC votage from +/-50V to +/-80V. If you set +/-65V there will not be voltage drop at full load.
Regards
sir apex,
thanks for very considerate answer,regarding ampere of the regulated supply,how much ampere for every 5200/1943 added ?
previous post you mention 3 pair can run 6 channel?
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Old 19th December 2010, 02:05 AM   #473
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Originally Posted by asia View Post
sir apex,
thanks for very considerate answer,regarding ampere of the regulated supply,how much ampere for every 5200/1943 added ?
previous post you mention 3 pair can run 6 channel?
5A for every 2SA1943/2SC5200, or use one pair in regulator for two pair in amplifier output. 3 pairs in regulator can run 6 channels AX14.
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Old 19th December 2010, 05:46 AM   #474
asia is offline asia  Philippines
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sir apex,
i must say you highly recommend this regulator even for b500 use,how many pair of 5200 for b500 or better upgrade regulator schematic for b500 use,please,... and so i can post recommend it to b500 builder in b500 thread,
sorry for talking of b500 here,but i believe all this amp is brothers,
regards
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Old 19th December 2010, 09:31 AM   #475
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sir apex,
i must say you highly recommend this regulator even for b500 use,how many pair of 5200 for b500 or better upgrade regulator schematic for b500 use,please,... and so i can post recommend it to b500 builder in b500 thread,
sorry for talking of b500 here,but i believe all this amp is brothers,
regards
For B500 use 2 pairs 2SA1943/2SC5200 in regulator.
Regards
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Old 19th December 2010, 02:29 PM   #476
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I found this pictures on the net... please share your expirience of building and listening AX14?
Regards
Attached Images
File Type: jpg ????0019.jpg (760.5 KB, 1626 views)
File Type: jpg ????0022.jpg (672.6 KB, 1363 views)
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Old 19th December 2010, 06:47 PM   #477
jef9200 is offline jef9200  Belgium
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Hi Apex,
Spend the day listening to AX14, My other amp is a symasym 5.3
Sound of AX14 is very good, bass are impressive, trebble and médium not agressive.very dynamic. (very much power for so a little board at 40VDC)
I'll made a complete amp. I've print a second regulated psu board and the second amp board.
It will be 2Xmono: 2XTransfo 30VAC 120VA (have them on stock), 2 reg PSU with 4X4700uf (find nichicon 4700uF/80V for 2Euros/p).
I think i'll be very happy with it.
Thanks for protection board, but i use velleman K4700 (very little board for two channels protection).
Thanks again, will give some news about the stéréo AX14.
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Old 19th December 2010, 08:13 PM   #478
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Quote:
Originally Posted by jef9200 View Post
Hi Apex,
Spend the day listening to AX14, My other amp is a symasym 5.3
Sound of AX14 is very good, bass are impressive, trebble and médium not agressive.very dynamic. (very much power for so a little board at 40VDC)
I'll made a complete amp. I've print a second regulated psu board and the second amp board.
It will be 2Xmono: 2XTransfo 30VAC 120VA (have them on stock), 2 reg PSU with 4X4700uf (find nichicon 4700uF/80V for 2Euros/p).
I think i'll be very happy with it.
Thanks for protection board, but i use velleman K4700 (very little board for two channels protection).
Thanks again, will give some news about the stéréo AX14.
You will be very happy with stereo sound of AX14, and you will build dual mono amplifier with regulated PSU, that will be best version of AX14. I expect good news about the stereo AX14, try it with another speakers and compare it with another amp...
Regards

Last edited by apexaudio; 19th December 2010 at 08:23 PM.
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Old 20th December 2010, 09:21 PM   #479
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Apex

Please advise
what's is the size of your ax14 pcb and its protection?

Do you have pdf file for pcbs?

thank you



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APEX Ultimate Fidelity Amplifier
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Old 20th December 2010, 10:10 PM   #480
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Originally Posted by dexter View Post
Apex

Please advise
what's is the size of your ax14 pcb and its protection?

Do you have pdf file for pcbs?

thank you
AX14 pcb size: 60x82,5mm
For protect go to thread DC Servo MOSFET Amplifier post #23.
Regards
Attached Images
File Type: jpg APEX AX14 SCH.jpg (426.5 KB, 1223 views)
File Type: jpg APEX AX14 MON.jpg (142.3 KB, 1076 views)
File Type: jpg APEX AX14 PCB.jpg (168.6 KB, 952 views)

Last edited by apexaudio; 20th December 2010 at 10:14 PM.
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