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Class D Switching Power Amplifiers and Power D/A conversion

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Old 12th September 2011, 06:40 PM   #431
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Another just finished brick.
A Hifimediy T2 (stock), a SMPS300R from Connexelectronic, a Pesante enclosure from HIFI2000 and a lot of patience. Sounds very good, an very rich and detailled soundstage.

Click the image to open in full size.

Click the image to open in full size.

And yes, 220 V kills.
Statistics : Electrical Safety Council
and for more in-depth view
OSHA Construction eTool: Electrical Incidents - How Electrical Current Affects the Human Body

So, be careful and responsible (and forgive-me for going off-topic).
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Old 18th September 2011, 08:38 PM   #432
mravlca is offline mravlca  Slovenia
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Default ICEpower 125asx2

This is the way I implemented 125asx2 power module into the housing. It is made out of perspex, on the sides it is opened so that the module doesn't get baked.

BR,
Ales
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Old 18th September 2011, 08:43 PM   #433
luka is offline luka  Slovenia
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This is some I would like to WATCH all day long
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Old 18th September 2011, 10:10 PM   #434
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Quote:
Originally Posted by mravlca View Post
This is the way I implemented 125asx2 power module into the housing. It is made out of perspex, on the sides it is opened so that the module doesn't get baked.

BR,
Ales
Now that belongs in an art gallery, beautiful!
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Old 18th September 2011, 11:26 PM   #435
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Quote:
Originally Posted by mravlca View Post
This is the way I implemented 125asx2 power module into the housing. It is made out of perspex, on the sides it is opened so that the module doesn't get baked.

BR,
Ales

Very nice work, mravlca! Beautiful!

Also: you are someone of great taste. The Prodigy are amazing. I wish they'd come to North America some time. We didn't even get to see a screening of World on Fire at our movie theaters. Amazing band, very underrated.

Jim
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Old 19th September 2011, 07:46 PM   #436
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Quote:
Originally Posted by mravlca View Post
This is the way I implemented 125asx2 power module into the housing. It is made out of perspex, on the sides it is opened so that the module doesn't get baked.

BR,
Ales
Great design. I think you achieved the goal of every DIYer: not to hide in a black opaque box all the work invested in the construction (like me).
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Old 19th September 2011, 08:59 PM   #437
mravlca is offline mravlca  Slovenia
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Thank you all for great compliments!

@J.R. Freeman: The Prodigy are amazing group. BTW I also didn't see the movie World on Fire, but I am thinking to buy a DVD.

Best Regards,
Ales
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Old 30th September 2011, 03:37 PM   #438
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My boardClick the image to open in full size.
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Old 26th October 2011, 07:29 AM   #439
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my woofer amplifer:

2 x L15D (irs2092)
balanced input ,with one speaker terminal inverted ( to help with buss pumping issues)
40 0 40 V AC 800VA toroidal
3 x 10000uf 80V capacitors per rail.
30ohm slow start for around 150ms with seperate transformer.

Own designed chassis (1.6mild steel black powder coated ,with anodized faceplate)

tested for just over 300W rms per channel into 4 ohm resistive.

Click the image to open in full size.


My woofer EQ (technically not for this thread)

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Took the Marchand bassis circuit diagram and added a 2 channel parametric filter and designed my own board. For use with my twin 12" sealed woofer I built.

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Old 29th October 2011, 08:10 AM   #440
Baldin is offline Baldin  Denmark
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Quote:
Originally Posted by tamphist View Post
Click the image to open in full size.

Hifimediy T2 with cheap 3A 24V SMPS (brand: JAH)
decoupled with 2200 pF C0G + 10uF Tantalum + 20uF MKP and a Ferrite Bead.


Things on right are mediaplayer, DAC and couple of tomatoes.
Like the enclosures .... where to get these
Thanks Baldin
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