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Old 3rd September 2010, 07:50 AM   #21
fmeyer is offline fmeyer  Brazil
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Great =)

Count me in,

2X amp boards
2X PSU
2X speaker protector

regards fmeyer
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Old 3rd September 2010, 07:56 AM   #22
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Fashionable quality =)
Rudi, what circumstances would cause stability issues with the Blame ES?
I am currently using ported 4ohm 2 way speakers with a 2nd order crossover, minimum impedance dip is 2.7 Ohms.
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Old 3rd September 2010, 08:28 AM   #23
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@Chlorofille,

in the evaluation phase of the 1st version of the DX Blame, the ES version, Carlos tortured it with 20 - 50 KHz rectangular waves
and even inserted microphone feedback to the input at the same time.
These tortures sometimes caused stability issues with the BlameES version.

In normal life - when you listen to your CDP, to your PC-files, ... - you will not be aware of any stability issues.
I know several (a lot of) BlameES AMPs that play flawlessly since months.

But since Carlos accepts the responsibility for his AMP designs he will tell you: "Build the BlameES at your own risk."

The BlameST version plays stable under every circumstance.

Best regards - Rudi_Ratlos
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Old 3rd September 2010, 08:31 AM   #24
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thanks - much appreciated
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Old 3rd September 2010, 10:41 AM   #25
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In this post I want to inform you about the price of a PSU PCB having the same design and quality as the AMP PCB.

The dimensions of the PCB will be 127 x 82 mm.

Taking into account the additional toll and shipment costs the price for a single PSU PCB will be 13€!

If those of you, who have signalled interest in a PSU PCB, say: "I want to have it anyway!" - I will order.
Please tell me (either via PM or in this thread).

Best regards - Rudi_Ratlos
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Old 3rd September 2010, 12:21 PM   #26
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Hi Rudi,

Can I have 2 PSU + 2 SP boards?
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Old 3rd September 2010, 12:35 PM   #27
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Default Pcb price

How much 2 PCBs cost + 1 Power Supply Board?

Thanks you
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Old 4th September 2010, 04:01 AM   #28
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Location: Sao Paulo
I want to have it ( PSU ) anyway.

How many members do you need to start ordering?

What about to creating a google docks spreadsheet?

Thanks again
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Old 4th September 2010, 12:07 PM   #29
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Dear DX Blame friends,


METAL and I finished the layout of the PSU for the DX Blame this morning.

This is how the copper side of the PCB will look like:

Click the image to open in full size.

The schematics follows Carlos' PSU design published on Greg's Web Site .
The dimensions of the PCB will be 126 x 85mm.
I will provide you the BoM for the PSU.

The layout is inspired by Miguel Nabuco, the technical head of the Brazilian division of Carlos' imaginary DX Corp Intl.

The layout will support both 1 transformer and 2 transformers solutions.
There will be special PADs to connect the PSU to the LS Protect PCBs as well.

The PSU PCBs will be etched using the red-gold DX AMP design, white silksreen on the component side and 70 m copper tracks.


Best regards - Rudi_Ratlos

Last edited by Rudi_Ratlos; 4th September 2010 at 12:11 PM.
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Old 4th September 2010, 12:34 PM   #30
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I will close the first roundup of this group-buy tomorrow.
I will then inform you about the commercial aspects.

Best regards - Rudi_Ratlos
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