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Old 17th November 2011, 12:55 PM   #1801
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Location: Near the Mountain
Quote:
Originally Posted by irvynejay View Post
yes your correct that's my post on your forum

no im not mad why do i have too?
So its really you,
cool
so welcome to solfegio FORUM
I will say hi there...
hope you enjoy
here we go Apexaudio Vertex Amp 2 Step - SOLFEGIO | www.solfegio.com
if anyone interested too
may I invited to your forum at Philippines too, please?

Regards

Last edited by JOHN BALI; 17th November 2011 at 01:00 PM.
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Old 17th November 2011, 01:41 PM   #1802
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vertex amp is already posted here earlier than other forum

Vertex Amp By apexaudio
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Knowing GOD is not being good,Knowing GOD is just knowing him as my friend

Last edited by irvynejay; 17th November 2011 at 01:44 PM.
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Old 19th November 2011, 08:41 AM   #1803
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Location: Near the Mountain
Default B500 ROCK MY HOUSE

Thanks to Apex

I'm so happy now
my B500 now Playing USB thumbdrive & FM
power rail +/-70V DC
from 2 trafo @600VA 57V ac each
load 8r
its cool, not so hot
No Humm, no hiss
just the music
loud & clear
(I think heat sink is small so I don't go to 4r yet)

Some question,
Why I can't measure any voltage across 0r33 resistor when the volume minimum?
Any suggestion which component to be change?
attached image of some measurement

Also its need or not to add "Apex Speaker Terminal" on the output amp like AX series?
If need, any changes or its just same as AX Speaker Terminal?


Thanks
GBU & PEACE
Attached Images
File Type: jpg APEX B500 SCH.jpg (248.5 KB, 1052 views)
File Type: jpg PLAY FM.JPG (486.0 KB, 1003 views)
File Type: jpg HV+ & HV- 2.jpg (169.4 KB, 849 views)
File Type: jpg TOP VIEW.JPG (330.0 KB, 795 views)
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Old 19th November 2011, 10:26 AM   #1804
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Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by JOHN BALI View Post
Thanks to Apex

I'm so happy now
my B500 now Playing USB thumbdrive & FM
power rail +/-70V DC
from 2 trafo @600VA 57V ac each
load 8r
its cool, not so hot
No Humm, no hiss
just the music
loud & clear
(I think heat sink is small so I don't go to 4r yet)

Some question,
Why I can't measure any voltage across 0r33 resistor when the volume minimum?
Any suggestion which component to be change?
attached image of some measurement

Also its need or not to add "Apex Speaker Terminal" on the output amp like AX series?
If need, any changes or its just same as AX Speaker Terminal?


Thanks
GBU & PEACE
Nice work.
There is no voltage across 0R33 becouse outputs work in class B, use 1k pot instead R22 and set 10-20mV for work in class AB (BIAS 50mA).
Add 'Speaker Terminal' on any amp, there is DC protect (crow bar) and Zobel Network.
I like your MP3 player, I want to get one.
Regards
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Old 19th November 2011, 02:04 PM   #1805
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Location: Near the Mountain
Quote:
Originally Posted by apexaudio View Post
Nice work.
There is no voltage across 0R33 becouse outputs work in class B, use 1k pot instead R22 and set 10-20mV for work in class AB (BIAS 50mA).
Add 'Speaker Terminal' on any amp, there is DC protect (crow bar) and Zobel Network.
I like your MP3 player, I want to get one.
Regards
Oh that why,
I will work it in class AB later
for now its okay anyway
my speakers are subwoofers
they like this amp

Thanks again
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Old 20th November 2011, 01:01 AM   #1806
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Join Date: Dec 2010
Location: Medan, North Sumatera
I like your amp..
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Old 20th November 2011, 07:15 AM   #1807
Qmara is offline Qmara  Indonesia
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Join Date: Aug 2010
Quote:
Originally Posted by JOHN BALI View Post
Thanks to Apex

I'm so happy now
my B500 now Playing USB thumbdrive & FM
power rail +/-70V DC
from 2 trafo @600VA 57V ac each
load 8r
its cool, not so hot
No Humm, no hiss
just the music
loud & clear
(I think heat sink is small so I don't go to 4r yet)

Some question,
Why I can't measure any voltage across 0r33 resistor when the volume minimum?
Any suggestion which component to be change?
attached image of some measurement

Also its need or not to add "Apex Speaker Terminal" on the output amp like AX series?
If need, any changes or its just same as AX Speaker Terminal?


Thanks
GBU & PEACE
Hi JOHN, i want to know about your USB thumbdrive & FM did you build it (DIY) or bought it ?

i want that one for my amp... thank's
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Old 20th November 2011, 07:59 AM   #1808
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Quote:
Originally Posted by Qmara View Post
Hi JOHN, i want to know about your USB thumbdrive & FM did you build it (DIY) or bought it ?

i want that one for my amp... thank's
I bought it in Denpasar @ my uncle elec-shop.
Anyone want to buy from me ...? or want to trade it with IR2117 & some u fast diode that hard to find here.
I just have one of it left, want to give it to Sir Apex as a gift he...3x .
Wish he come to Bali, maybe some vacation.


Matur Suksma
Attached Images
File Type: jpg U player + IR.JPG (282.9 KB, 731 views)

Last edited by JOHN BALI; 20th November 2011 at 08:09 AM.
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Old 20th November 2011, 09:51 AM   #1809
Qmara is offline Qmara  Indonesia
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Join Date: Aug 2010
Quote:
Originally Posted by JOHN BALI View Post
I bought it in Denpasar @ my uncle elec-shop.
Anyone want to buy from me ...? or want to trade it with IR2117 & some u fast diode that hard to find here.
I just have one of it left, want to give it to Sir Apex as a gift he...3x .
Wish he come to Bali, maybe some vacation.


Matur Suksma
o ic, there's any in other town, or just on your uncle store ? thank's
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Old 21st November 2011, 09:15 AM   #1810
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Location: Serbia
Quote:
Originally Posted by JOHN BALI View Post
I bought it in Denpasar @ my uncle elec-shop.
Anyone want to buy from me ...? or want to trade it with IR2117 & some u fast diode that hard to find here.
I just have one of it left, want to give it to Sir Apex as a gift he...3x .
Wish he come to Bali, maybe some vacation.


Matur Suksma
Thanks, I need vocation but better post me
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