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Old 13th March 2004, 12:09 AM   #1
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Default Gainclone PCB

Been lurking on the forum for a while and have seen many threads regarding gainclone PCB's. None of them seems to be complete though, the person who designed them forgot a trace here, a component there or made the tracks to narrow for high currents.
Is there someone out there who has layout files for a fully working PCB? It just needs to be a very simple layout like the one on the application note. I need to build 24 channels in one enclosure, so the PCB have to be small. They will be run from a dual supply of +/- 14 VDC driving 12 x 6ohm tweeters and 12 x 5" 4ohm woofers. For my surrond speakers...

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Old 13th March 2004, 02:20 AM   #2
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http://www.diyaudio.com/forums/showt...714#post347714
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Old 13th March 2004, 08:04 AM   #3
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Eeeeeh, Ok, I should have searched. Sorry.

Thanks though, just what I need and it was so sexy too, red and all.

BAF
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Old 13th March 2004, 08:42 AM   #4
Nuuk is offline Nuuk  United Kingdom
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It sounds like http://www.fedde.tk ]Fedde[/URL] is the guy you need to contact. He has PCBs finished and they are ultra-compact.

PS He is in Holland.
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Old 13th March 2004, 09:00 AM   #5
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Default I am not an EE

so this question is most likely stupid.
I understand the stereo set up of an amp you have 2 channels a left and a right.
But if you want to start to build a 4.1 , 5.1 6.1 or as it seems a 7.1
how does one go to split up the channels into rear, front and center etc... channels
do you need some kind of electronic splitter that splits each of the 2 incoming source channels into multiple or how does that work?
plpease not toooooo technical, I was born stupid!

J-P
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Old 13th March 2004, 09:06 AM   #6
Optical is offline Optical  New Zealand
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usually the source (computer/dvd player etc) will have the 5.1 7.1 whatever outputs..
so its a simple matter of having enough amplifiers for each channel
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Old 13th March 2004, 02:58 PM   #7
S.C is offline S.C  United States
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I "think" building a DAC which support mutipule channel will work too.
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Old 13th March 2004, 08:00 PM   #8
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Default out of a source?

I have been looking at an old Pioneer system with surround sound
front R L, rear R L and center speaker
I can hear definitely different sounds coming form different speakers (depending on the film ofcourse) but the dvd out is only 2 rca jacks for audio ( frankly I have never seen a cable leaving a dvd player that had more than 2 rca jacks for audio....




for a DAC can you give me an 'easy' schematic
I would like to look at that and I understand that for each speaker I would need it's own amp so for a 6.1 i would need 7 amps, but considering the small space a gc takes i could do all of that in a relatively small enclosure seperated from the powersupply


J-P
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Old 13th March 2004, 09:11 PM   #9
tg3 is offline tg3  United States
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The 'better' HT receivers have separate preamp outputs for each channel. If you're going to roll your own amps, then you should consider a HT preamp/processor like the Outlaw Model 950.

There are no DIY solutions for a HT receiver because of licensing issues.

Here is the rear panel of the 950 with all the preamp outputs (and other connectors).



Click the image to open in full size.
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Old 13th March 2004, 11:26 PM   #10
S.C is offline S.C  United States
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Quote:
Originally posted by S.C
I "think" building a DAC which support mutipule channel will work too.
Sorry man you missed my bold letter...... I think I just think it will work that way, but I don't have any actrual edvience. Sorry, I can't help u.
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