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Old 30th April 2013, 12:20 AM   #681
i2k92 is offline i2k92  Indonesia
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Very inspiring photos.

I have a questin for the Hypex guys :

I plan to assemble a stereo amp with dual UCD180 & dual SMPS300RE from Connex, still waiting for SMPS delivery (Connex SMPS are great, but they delivery must be improved). For the enclosure, I found a beautiful full aluminium Pass Lab like chassis on eBay.

The input will be balanced, directly feed by a balanced output DAC. I want to have a passive vol control, as the input is balanced so I need a 4 gang pot which is not easy to find. I found these : Alps motorized 4 gang 100K dan balanced attenuator 50K.

Which one is more suitable ? I'm not sure if the ground pins on the ALPS are connected to each other or not. If yes, would that be a problem for a dual monoblock config ?
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Old 2nd May 2013, 01:00 PM   #682
xrk971 is offline xrk971  United States
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Quote:
Originally Posted by dfuhr7gm View Post
Hello,
this is my fist yet unfinished work.
It's a TAS5630b-amp in stereo mode, everything is hand soldered (the chip was a hell of a job to solder!).

It will be driven by the TI reference SMPS which was designed for exactly this amp.
I am going to expand my planned setup with a 4-channel TAS amp to make a full 6.1 surround system, which will be driven by a Hafler matrix surround decoder.

The question of the casing is still unsolved.

These are the pics of the board:

(Obviously I am unable to post pics linked from dropbox; at least this worked)

I hope I will be able to finish the whole system this year; it won't be easy, as I am 18 and just approaching my final exams.

Nice work with soldering this. Did you just use TI's Eval board Gerber file for ordering your own PCB? Because it says TI Eval board on it. I was contemplating this project after seeing the awesome amp that Mantabernd built with the same TAS5630B, but in the end don't really have a need for such a powerful amp as I am mostly a full-range driver speaker person. PM Mantabernd if you are interested in his PCB and BOM.

Class D Amp Photo Gallery
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Old 2nd May 2013, 01:20 PM   #683
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Thanks

It's the EVM, but I bought the boards from nalinb80, who had them manufactured anywhere in India.

I have just finished designing a 4-channel amp with that chip, you may find it in a recently opened thread on he class-d board. It is not complete, as the preamps will be sitting on a separated board.
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Old 6th May 2013, 01:43 AM   #684
DUG is offline DUG  Canada
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Default My first TPA3116

Outside view first.
Attached Images
File Type: jpg IMAG0586.jpg (45.3 KB, 1044 views)
File Type: jpg IMAG0588.jpg (37.1 KB, 1036 views)
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Old 6th May 2013, 01:50 AM   #685
DUG is offline DUG  Canada
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The board(s)

The one with only 2 inductors is for the sub
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File Type: jpg Copy of IMG_0761.JPG (113.5 KB, 1029 views)
File Type: jpg Copy of IMG_0767.JPG (91.3 KB, 1002 views)
File Type: jpg Copy of IMG_0773.JPG (121.7 KB, 975 views)
File Type: jpg Copy of IMG_0765.JPG (125.3 KB, 181 views)
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Old 6th May 2013, 01:54 AM   #686
DUG is offline DUG  Canada
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This was the 3116 at the Toronto meet in Feb (without the box)
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Last edited by DUG; 6th May 2013 at 01:56 AM. Reason: Feb not Jan
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Old 6th May 2013, 05:46 PM   #687
xrk971 is offline xrk971  United States
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Quote:
Originally Posted by DUG View Post
Outside view first.
Dug,
Nice work on the box. Are those PCB's you are using for the front and rear panels? Interesting way to do it. What do the LED bar graphs show, and what do the pots do?

I like leaving my TPA3116D2 exposed and mounted on the top deck of a wooden box that houses the 19v SMPS brick. The amp's simplicity that you designed is just so cool, I just can't bear to cover it up. It has the wow factor of being so small and simple that when people hear the beautiful rich and clear sound that is produces that it amazes them even more that they can see it comes from such a simple amp.
X
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Old 6th May 2013, 07:26 PM   #688
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These are out for black anodizing today and will be done by the weekend. They are so quiet, fast, airy and the soundstage is wonderful.

I started a group buy thread if anyone is interested

Click the image to open in full size.

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Matt Kraemer~
Kraemer Designs
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Old 6th May 2013, 11:34 PM   #689
DUG is offline DUG  Canada
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xrk971
"... Are those PCB's you are using for the front and rear panels?..."

Yes...I don't have access to a mil.

I put in an LM1036 tone control board...adds a little noise...won't be in the next one.

Only to run my computer speakers (Signet SL-16) so I don't mind too much.



Matt

Very nice, very shiny.
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Old 7th May 2013, 02:16 PM   #690
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Quote:
Originally Posted by DUG View Post
xrk971
"... Are those PCB's you are using for the front and rear panels?..."

Yes...I don't have access to a mil.

I put in an LM1036 tone control board...adds a little noise...won't be in the next one.

Only to run my computer speakers (Signet SL-16) so I don't mind too much.



Matt

Very nice, very shiny.
Thanks Dug!

I am getting them back from anodizing either tomorrow or Thursday

Matt
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