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Old 15th May 2012, 09:07 PM   #611
Vostro is offline Vostro  South Africa
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First I want to Say Thanks to ApexAudio and all the STARS that keep woking on the PCBs and more.
I am going to build a stereo amp for my new Wharfdale Diamond 10.1 (100W), hoping they will
sound nice, havent heard them play yet.

I first looked at the AX series amp then found my way to this thread,
sounds like SR amp is more power and great sounding, maybe better than AX ?

As usual i got so lost trying to establish which ver of ciruit and pcb to use.

Apexaudio can you pls help me in the right direction as which pcb to build.

Ill post all pics of build as it progresses, Im hoping for a high quality build.

Id reallyn appreciate the help.
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Old 16th May 2012, 04:40 AM   #612
abetir is offline abetir  Philippines
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Click the image to open in full size.
Quote:
Originally Posted by QQ12e5k1 View Post
I've remove wire jumper in the bottom side.


Hi,

Will the bottom foil pattern come-up?..
I like your design rectangular yet compact I figure the output transistors are well spaced on the heatsink.

Nice work!
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Last edited by abetir; 16th May 2012 at 04:46 AM.
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Old 17th May 2012, 12:17 PM   #613
comasus is offline comasus  India
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Hi! Mile

can i use this type of piezo tweeter with sr200 directly? or i need to add a capacitor in series with it please help me
Ahuja Sound Solutions

Thank you
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Old 17th May 2012, 01:09 PM   #614
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Quote:
Originally Posted by comasus View Post
Hi! Mile

can i use this type of piezo tweeter with sr200 directly? or i need to add a capacitor in series with it please help me
Ahuja Sound Solutions

Thank you
Use 220nF/250V capacitor in series with it
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Old 17th May 2012, 06:12 PM   #615
shreya is offline shreya  India
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what are the voltage rating of all non polarised capacitors ?
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Old 17th May 2012, 06:30 PM   #616
comasus is offline comasus  India
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Quote:
Originally Posted by apexaudio View Post
Use 220nF/250V capacitor in series with it
Then what will be the cutoff frequency?
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Old 17th May 2012, 07:06 PM   #617
Vostro is offline Vostro  South Africa
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Im in the process of making 2x SR200 pcb's, with "Press 'n Peel" transfer method,
fingers crossed.

I have my pair of
Product - Products - Wharfedale Hi-Fi
sitting in my room now for 3 days, im dying to hear them,
going to connect them to my chipamp this weekend,

Does anyone have experience with these speakers and how do you think theyll match
with the SR200 amps?

They small and compact, its very small where I live and I only have a bedroom to myself.
So I thought they would be nice

How many output pairs should I use and what Supply Voltage.

Last edited by Vostro; 17th May 2012 at 07:10 PM.
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Old 18th May 2012, 09:32 AM   #618
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enjoy my SR 200
its sounds very good
its the best i have had heard
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File Type: jpg IMG_1998.JPG (172.8 KB, 204 views)
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Old 18th May 2012, 09:57 AM   #619
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Those heatsinks are nowhere near big enough, and there are no holes that i can see for air to enter the box, that fan wont be doing anything useful.
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Old 18th May 2012, 12:35 PM   #620
AndrewT is online now AndrewT  Scotland
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Quote:
Originally Posted by shreya View Post
what are the voltage rating of all non polarised capacitors ?
Whatever the manufacturer tells you it is.
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regards Andrew T.
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