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Old 30th November 2011, 07:34 AM   #991
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Quote:
Originally Posted by Arif Budiyanto View Post
Not yet, I have an old speaker protector, can I use it? Or should I build new one. I have your protect schematic already. If it is a must I will try to build one. I really need your advice.
Thank you in advance.
Best Regards,
Arif
You can use it, any protect will be better than nothing,
Regards
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Old 1st December 2011, 03:12 AM   #992
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To Sir Apex.

Sir good days to you...can you share pcb with AX17S...? thankking you in advance

tnx...benny
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Old 3rd December 2011, 12:58 AM   #993
RSK is offline RSK  Malaysia
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Default AX17S pcb
Just a simple contribution.
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File Type: pdf AX17S pcb.pdf (67.5 KB, 685 views)
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Old 3rd December 2011, 07:54 AM   #994
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Default AX17S
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Originally Posted by RSK View Post
Just a simple contribution.
Thank you for this pcb design.
Regards
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File Type: jpg untitled.JPG (210.7 KB, 1239 views)
File Type: jpg AX17S PCB.JPG (126.4 KB, 1130 views)
File Type: jpg APEX AX17S.jpg (535.6 KB, 1164 views)
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Last edited by apexaudio; 3rd December 2011 at 08:16 AM.
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Old 3rd December 2011, 04:42 PM   #995
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AX17S V2 pcb
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File Type: jpg AX17Sv2 PCB.JPG (208.6 KB, 1056 views)
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Old 5th December 2011, 03:39 AM   #996
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Quote:
Originally Posted by apexaudio View Post
AX17S V2 pcb
Hi Apex,
What is the difference with AX17 for the sound,
is this one has a deeper bass?
I'm not make the AX17's PCB yet, maybe its better a lot AX17S
or better I make the AX17 first & add servo latter?

Regards
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Old 5th December 2011, 08:14 AM   #997
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Quote:
Originally Posted by JOHN BALI View Post
Hi Apex,
What is the difference with AX17 for the sound,
is this one has a deeper bass?
I'm not make the AX17's PCB yet, maybe its better a lot AX17S
or better I make the AX17 first & add servo latter?

Regards
Amplifier must be neutral in sound, for deeper bass use speakers with deeper bass or 'loudness' circuit if you must.
No need to use servo, match transistors and add pot for set DC offset, with DC servo it's easyer (auto set).
Regards
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File Type: jpg APEX AX17V2.jpg (478.5 KB, 887 views)
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Last edited by apexaudio; 5th December 2011 at 08:41 AM.
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Old 6th December 2011, 02:32 AM   #998
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RSK thanks for sharing the PCB design...and to sir APEX also....
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Old 6th December 2011, 05:18 AM   #999
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Hi Mr APEX, i dont understand the utility of the pair Q3/Q5 (Q6/Q8) instead of only one transistor.... can you explain me?
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Old 6th December 2011, 08:11 AM   #1000
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Originally Posted by DIDULUS View Post
Hi Mr APEX, i dont understand the utility of the pair Q3/Q5 (Q6/Q8) instead of only one transistor.... can you explain me?
Q3/Q5 are used for 1mA CCS, Q7/Q8 are used for cascode circuit.
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Last edited by apexaudio; 6th December 2011 at 08:20 AM.
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