Pearl MC Pre-Preamp

promitheus · 26th April 2006, 02:48 PM

I started a new thread for this new project.
I am making PCBs for an MC Pre-Premplifer to be used with the Pearl Phono Preamplifier.

It will be powered from the Pearl and can fitted on top of the Pearl.

I will be posting more information here like PCB layout parts etc.

tschrama · 26th April 2006, 06:27 PM

I'm all ears m8! good idea

grzz,
Thijs

steenoe · 27th April 2006, 05:27 AM

Yes, great idea Promitheus.

Steen

Gregorio · 27th April 2006, 12:38 PM

sounds interesting.

I have had my Pearl up and running for a couple of months now. I would have to say it sounds fantastic. I'm using it with a Grado Sonata high output. I know that at some time I will want to try a lower output mc. Keep us posted.

promitheus · 27th April 2006, 12:40 PM

This is the schematic from the Aleph ONO XONO Preamp.
Its only the input for MC with the Parts used on the PCB.

promitheus · 27th April 2006, 03:00 PM

This is what the Board will look like.
I still have to check the Layout one last time.
If anybody sees a mistake please point it out.

promitheus · 27th April 2006, 03:07 PM

Top Layer with Ground Hatch type.

promitheus · 27th April 2006, 03:09 PM

Bottom Layer

pixpop · 27th April 2006, 03:10 PM

On your board layout, what are the dimensions of the board itself. I need to make a template and check it against my pearls.

Neil

promitheus · 27th April 2006, 03:30 PM

63mm x 126mm

The Board fits directly beside the big Caps C7, C8 and C15.
But it must be placed above the MKP output Cap C9.

The best would be to use an extension screw on the left bottom corner. The other 3 corners could then be placed on adhesive plastic PCB mounting things.

26th April 2006, 02:48 PM	#1
promitheus diyAudio Member Join Date: Jan 2001 Location: Germany	Pearl MC Pre-Preamp I started a new thread for this new project. I am making PCBs for an MC Pre-Premplifer to be used with the Pearl Phono Preamplifier. It will be powered from the Pearl and can fitted on top of the Pearl. I will be posting more information here like PCB layout parts etc.

27th April 2006, 12:38 PM	#4
Gregorio diyAudio Member Join Date: Jun 2004 Location: Midwest	sounds interesting. I have had my Pearl up and running for a couple of months now. I would have to say it sounds fantastic. I'm using it with a Grado Sonata high output. I know that at some time I will want to try a lower output mc. Keep us posted. __________________ Gregorio

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26th April 2006, 06:27 PM	#2
tschrama diyAudio Member Join Date: Jul 2001 Location: The Netherlands	I'm all ears m8! good idea grzz, Thijs

27th April 2006, 05:27 AM	#3
steenoe diyAudio Member Join Date: Mar 2004	Yes, great idea Promitheus. Steen

27th April 2006, 03:10 PM	#9
pixpop diyAudio Member Join Date: Jan 2005 Location: Los Angeles	On your board layout, what are the dimensions of the board itself. I need to make a template and check it against my pearls. Neil

27th April 2006, 03:30 PM	#10
promitheus diyAudio Member Join Date: Jan 2001 Location: Germany	63mm x 126mm The Board fits directly beside the big Caps C7, C8 and C15. But it must be placed above the MKP output Cap C9. The best would be to use an extension screw on the left bottom corner. The other 3 corners could then be placed on adhesive plastic PCB mounting things.