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Old 28th August 2012, 09:04 AM   #711
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Hi Andrew T is this amplifier is not good for bass or low frequency. when i read some viewer
replay i think that is it not HI FI amplifier if that is true i am disappointed
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Old 28th August 2012, 09:15 AM   #712
AndrewT is offline AndrewT  Scotland
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I have not built any of Apex's amplifiers.
But as with all amplifiers, the filters determine the passband.
The ability of the amplifier to pass current from PSU to speaker determines the sound at the speaker.
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regards Andrew T.
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Old 28th August 2012, 09:30 AM   #713
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Hi Andrew T thanks for replay what should you suggest for me for up to 100 W in to 8 ohm
load which amplifier from diyaudio you suggest
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Old 28th August 2012, 09:39 AM   #714
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HI Apexaudio is this amplifier is response good for low frequency signal i mean some people replaying on this tread that this amplifier is not HI FI amplifier please give me suggetion
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Old 31st August 2012, 07:13 AM   #715
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Quote:
Originally Posted by olafk View Post
...for the compact version - not tested.

regards
Hi olafk,

Can you share your pcb layout in pdf file using 2n2922? Thank you in advance.

regards,
Boyet
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Old 31st August 2012, 07:18 AM   #716
olafk is offline olafk  Germany
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Originally Posted by boyet0173 View Post
Hi olafk,

Can you share your pcb layout in pdf file using 2n2922? Thank you in advance.

regards,
Boyet
Hi,

i will upload the file tonight.

regards, Olaf
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Old 31st August 2012, 02:22 PM   #717
44250 is offline 44250  Serbia
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Quote:
Originally Posted by sanbadgujar View Post
Hi Andrew T is this amplifier is not good for bass or low frequency. when i read some viewer
replay i think that is it not HI FI amplifier if that is true i am disappointed
have you seen the title of this thread? "QUASI Amplifier for Beginners" ,what does it tell you? For hi-fi try nx14,sr50-100-200 or say f100 . I have found a lot in nx14,it is one of my top 3 amplifiers that i have built and heard.
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Old 31st August 2012, 07:22 PM   #718
olafk is offline olafk  Germany
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Quote:
Originally Posted by boyet0173 View Post
Hi olafk,

Can you share your pcb layout in pdf file using 2n2922? Thank you in advance.

regards,
Boyet
Hi Boyet,

here are the files. Hope, you will have fun.
(Size is 110x85mm).

regards, Olaf
Attached Images
File Type: jpg Quasi_2SC2922_Layout.JPG (173.7 KB, 749 views)
Attached Files
File Type: pdf Quasi_2SC2922_Bottom.pdf (18.6 KB, 221 views)
File Type: pdf Quasi_2SC2922_Top.pdf (18.7 KB, 231 views)

Last edited by olafk; 31st August 2012 at 07:24 PM. Reason: data forgotten
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Old 1st September 2012, 09:06 AM   #719
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Quote:
Originally Posted by olafk View Post
Hi Boyet,

here are the files. Hope, you will have fun.
(Size is 110x85mm).

regards, Olaf
Hi olafk,

Thank very much for your kindness. I want to try this to my subwoofer. Again thank you.

Regards,
Boyet
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Old 3rd September 2012, 10:36 PM   #720
joeyt is offline joeyt  Philippines
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what is the power output of this compact module using -40v 0v +40v?
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