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Class D Switching Power Amplifiers and Power D/A conversion

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Old 21st March 2011, 08:10 PM   #21
diyAudio Member
Join Date: Nov 2010
Oh god i feel stupid >.<

So the idea i had from the begining is the best? :P
But if so, will this do it?

Just realised my coaxials stick out 75mm and not 100mm as i thought.
25mm x 2 = 50mm and just checked, that's enough to the magnets not pulling each other away too much
So don't think i will need those things

But is there anything else that could make the boombox better?
Im starting building it on wednesday so after that, its too late

Last edited by Zenolijo; 21st March 2011 at 08:19 PM.
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Old 22nd March 2011, 07:54 PM   #22
diyAudio Member
Join Date: Nov 2010
Ok then, i'll start the building tomorrow

Wish me good luck ^^
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Old 31st March 2011, 07:28 PM   #23
diyAudio Member
Join Date: Nov 2010
Got the AMP9-B now, starting soldering tomorrow, need to study the instructions a little more before being sure

Great delivery, ordered it yesterday at 7pm, got it today at 12am!!
41hz is in sweden like me, but still, one day is just crazy!
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Old 5th April 2011, 07:01 PM   #24
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Join Date: Nov 2010
I am almost done soldering, but i dont have any more solder :/
Going to buy a 250mA fuse, a fuse for when im running it on higher power(how much A do i need? im going to use both a 12v system and a 24v system, perhaps 6A?),
more solder and a heatsink

Also, im looking for a very cheap pre-amp.
Would this one work? $13.80 - Digital Audio MP3 Player Module with Remote Controller (1.5" LCD) - DIY Parts & Components

Will it work to plug in the speaker outputs to my amp input?
Will it be more than 12V output?
If so, will it work to put a resistor to make it 5V?
I think the amp max input should be at 5V, not sure.
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Old 7th April 2011, 07:00 AM   #25
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Join Date: Nov 2010
No awnsers -.-
Btw, wouldn't it word to connect a aux cable directly to the input?
The output of an 3,5mm is also 5V, so why wouldn't it?
And perhaps just connect a potentiometer so i can change the volume from more places than just my audio source, would that work?
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