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Chip Amps Amplifiers based on integrated circuits

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Old 29th June 2013, 10:57 PM   #2431
jemraid is offline jemraid  United Kingdom
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Goodness! Thats one hell of a transformer you've got there wherever di you get it from?

Jim
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FH3 build using very simple tools and a point to point Gain Clone with largish power supply. http://www.jasread.com/fh3/index.html
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Old 5th July 2013, 12:31 AM   #2432
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Hi guys, this is still a work in progress. ( i posted it in solid state by accident)
Its a 5.1 amp system, 5 LM3875T modules for my satellite speakers, and a 250 watt class D module for the subwoofer.
The entire system will soon be controller with an arduino to control speaker protecting, and power saving.
Ampduino!

Ignore that little module in the middle cable tied to the speaker lines, its a temporary 12 volt PSU to get it running for testing.

I still have to mount the power control system, soft start, speaker protection system, and on/off switch.
Oh and snubber caps on the rectifier bridges.

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Old 5th July 2013, 04:24 AM   #2433
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You think big in Oz don't you?

Well done!
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Old 5th July 2013, 04:35 AM   #2434
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Go hard, or Go home!

I am building satellite speakers next, but having issues making an enclosure for them.
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Old 5th July 2013, 12:33 PM   #2435
SRMcGee is offline SRMcGee  United States
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Location: Wynnewood, PA
Rainwulf:

I have been looking for something like those pins mounted on the inputs and outputs of the third photograph; what are they, and is there a corresponding female part?

Regards,
Scott
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Old 5th July 2013, 12:40 PM   #2436
AndrewT is online now AndrewT  Scotland
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Location: Scottish Borders
PCB pins.
usually have knurled section to "grip" the PCB.
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regards Andrew T.
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Old 5th July 2013, 12:58 PM   #2437
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Location: Victoria, Australia
Quote:
Originally Posted by Rainwulf View Post
Go hard, or Go home!

I am building satellite speakers next, but having issues making an enclosure for them.
If you are in Vic. I have someone to help you.
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Old 6th July 2013, 12:03 AM   #2438
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Quote:
Originally Posted by mhouston View Post
If you are in Vic. I have someone to help you.
Brisbane sorry, but thanks for the offer!

I have eyed of these 3 inch drivers at jaycar...
Shielded 3" 15W 8-Ohm Full Range Speaker - Jaycar Electronics

They come with full T/S params, but of the few speaker design programs on the internet i have found, one came out at negative 2.6 litres.. the other one came out at over 146 litres... im confused!

There doesnt seem to be many topics on diyaudio for computer satellite speakers, they need to be small, and not a huge bass response because i have a sub to take care of that.
I just want accuracy for positional audio in games. At the moment im using sony xplode 4 inch car speakers with a coaxial mylar tweeter.

Last edited by Rainwulf; 6th July 2013 at 12:05 AM.
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Old 6th July 2013, 12:19 AM   #2439
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Join Date: Jan 2006
Location: Victoria, Australia
Quote:
Originally Posted by Rainwulf View Post
Brisbane sorry, but thanks for the offer!

I have eyed of these 3 inch drivers at jaycar...
Shielded 3" 15W 8-Ohm Full Range Speaker - Jaycar Electronics

They come with full T/S params, but of the few speaker design programs on the internet i have found, one came out at negative 2.6 litres.. the other one came out at over 146 litres... im confused!

There doesnt seem to be many topics on diyaudio for computer satellite speakers, they need to be small, and not a huge bass response because i have a sub to take care of that.
I just want accuracy for positional audio in games. At the moment im using sony xplode 4 inch car speakers with a coaxial mylar tweeter.
I just built a extremely good sounding 2-way from 5" Jaycar drivers and their $10 silk dome in a 12Lt box. The speakers sound absolutely excellent. But my suggestion now would be the 6.5" woofer and silk dome in a 15Lt box.
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Old 6th July 2013, 12:25 AM   #2440
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I have used their $10 silk dome as a replacment in another set of speakers actually, and yes, they are pretty damn good! I need my satellites to be tiny though. I have started a new thread so this one doesnt get derailed.
Satellite speakers for computer audio

Last edited by Rainwulf; 6th July 2013 at 12:31 AM.
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