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Author Topic: Siemens U273 Mods for more control  (Read 2461 times)


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Siemens U273 Mods for more control
« on: January 07, 2014, 01:20:25 am »

Hi there!

I got a pair of U273 units and I am searching for mods get for more control for these units; I would lijke to add a threshold, attack, release and make up level controls. Where I can found info abouts these mods??, Someone did this before?
Thanks anticipated!
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  • Real Full Name: guillermo piccolini
Re: Siemens U273 Mods for more control
« Reply #1 on: August 16, 2014, 10:24:15 am »

I'm interested too.
A friend of mine dis a mod for my 2 U273s. He'd put an atenuator at the input and did replace something inside with stepped switches to give slower attack time. It works, more or less (never finished and then I moved... ), but both sound and react differently. A makeup stage would be nice...
I also have U373a. Unmodded. Other than the buggy attack in the U273, which is useful, I think it's better to run them in paralel with an atenuator before the input and an amplifier at the output.


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  • Real Full Name: Mark Powell
Re: Siemens U273 Mods for more control
« Reply #2 on: April 21, 2016, 10:20:57 am »

Could you please tell where you bought them? I'm currently looking for them but for a fair price. Even already used ones would work for me.
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