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Old 10th November 2010, 12:35 PM   #211
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Default Wonderfull news will appeear here....and soon!

Prepare yourself to big emotions!

regards,

Carlos
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Old 19th December 2010, 10:27 PM   #212
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I guess it is too late to get these boards? I am new to the forum and only found this thread now
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Old 4th February 2011, 03:28 PM   #213
fizz is offline fizz  United States
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Yeah, if a group buy is ever started up again, I'd be interested in 4 boards.
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Old 4th February 2011, 05:50 PM   #214
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I can do this, Fizz, and start a second round.

I had some misunderstanding with Carlos several months ago, but we settled them, and I believe that he does not mind if I start a small, 2nd round right now.

I just asked for the prices of the etching company.
Here is the result:

Click the image to open in full size.

If I would order 10 PCBs DX BlameES and 10 PCBs PSU, same quality as I did several months ago, I would have to pay about 170€ (included is about 25€ local toll).

So: one DX Blame PCB will cost about (<) 10€; one PSU PCB will cost about (<) 8€.

You can then calculate the total sum of your order by yourself.

What I want to recommend you very warmly, is this little Pre-AMP / Attenuator, which works in perfect harmony (tested!) with the DX BlameES:

Click the image to open in full size.
Click the image to open in full size.

You need 3 PCBs for this little Pre-AMP:

- the relay PCB to select the source
- the transformer PCB
- the Controller PCB
- the pre-programmed µProcessor which is at the heart of the PRE-AMP

This little Pre-AMP / Attenuator uses a PIC 18F4550 µProcessor that selects the source (one of 8 possible inputs),
drives a BurrBrown PGA2311 Volume Control Chip to do the attenuation, displays the current source selection
and attenuation on a LCD display, accepts remote control for attenuation, mute and source-select, ...

This is, in my eyes, the perfect symbiosis of sound and operation.

I will try and offer the bundle of 2 DX BlameES PCBs, 2 PSU PCBs and the PRE-AMP PCBs + µProcessor for <100€.

Are you still interested?

I can promise you: this will be the only DIY project, you will ever do.
Once you have listened to the DX BlameES and this "Pre-AMP", you will sell your solder iron, your digital multimeter, ...

You won't need them any more. You will be content.

Best regards - Rudi_Ratlos
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Old 4th February 2011, 06:04 PM   #215
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This is my current setup:

Click the image to open in full size.

Transformer PCB: homebrew
Source Select: not visible

Best regards - Rudi_Ratlos
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Old 5th February 2011, 12:03 PM   #216
ferynov is offline ferynov  Indonesia
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Default Interesting

Very nice Rudi , but the pictures not shown .. may be try imageshack.us for upload.

btw, i read your post several time ago Best DIY preamp
can you give more little detail impression about pre-amp ....thanks.
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Old 5th February 2011, 12:25 PM   #217
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Default Our problems finished Rudi..you are welcome back to action

regards,

Carlos
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Old 5th February 2011, 03:57 PM   #218
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Hi Ferynov,

this is still the DX BlameES group-buy and I do not want to turn it into a Pre-AMP thread.

If you are interested, have a look at this (Stefan's) site:

PicPlayer

and click on the string: "Lautstärkeregelung mit PGA2311" on the left, top side.

A windows opens that contains some pictures, a link to the User Builder's Manual and the BoM.

Click on the string: "Nachbauanleitung mit Plänen und Stücklisten (ca. 4MB)" and you can download a .PDF-file containing the Builder's Manual.

The manual is written in German, but you can find the complete schematics in it.
You have access to the BoM, when you scroll down the page and click on the string "Bauteile für das Controllerboard" (Components for the controller board).

Stefan's Pre-AMP does not have output-buffers; so it should be mounted in the AMP's case as well.

The reason I mentioned this Pre-AMP is, that, at least in my ears, it plays perfectly with Carlos' DX Blame.



Best regards - Rudi_Ratlos
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Old 5th February 2011, 05:44 PM   #219
ferynov is offline ferynov  Indonesia
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Thank you Rudi for the guide. Now i can see clearly pics. yes, i only ask about pre-amp and i don't want on this page other GB than DX BLAME....and I high appreciate your pre-amp recomendation .sure.
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Old 5th February 2011, 06:19 PM   #220
fizz is offline fizz  United States
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Thanks Rudi,

I'll definitely take 2 Amp PCBS and 2 power supply PCBs. I'll also gladly take 2 more AMP PCBS if you don't have enough buyers.

That pre-amp definitely sounds interesting, but being this is my first project I want to start with one component of my speaker system at a time. Next i'll probably build myself some better speakers and i'll probably just buy my own DAC with a volume pot. I've been looking at the Audio-gd FUN.

Let me know where I can send you your payment when your ready. I'm very excited. Does anyone recommend a good place to get a transformer? Also, how important/worthwhile is it to have a power supply for each channel?
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