F5X -- the EUVL Approach - The Build Thread

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Joined 2010
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I can loose a battle but I win the war :)
The protection PCB is completed and fully functional and tested.
I complete the building of the F5X and now is playing music since one hour:D
I bias at 1,5A with 0 mV offset and I have to say that is really hot!
I will recheck both bias and offset in two hours and I hope that the bias is not going too high.
I have to say that is not playing at his best, is connected to a DCB1. I am waiting a Rane BB22 (passive converter RCA/XLR) that is on the way.
I will use it until the F5X Preampli will be published (I think that I am not the only one :))
Thanks to everyone of you for your kind help.
A particular thanks to Patrick which enabled us to build this TOP Class amplifier and to Mark Lai for all the logistic support.
Attached some pictures (apologize for the poor quality)
All the Best,
Enrico
 

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I have no idea why I can't attach the pictures in the proper side... in my PC are in the right side but when they are uploaded are in reverse:confused:

Solved only taking new ones:)

Could be an EXIF setting. You can usually fix it by rotating it with MS Paint and re-saving it.

In reading various build threads for amplifiers over the last few months, I very much like this one. There's a strong possibility that I could build one of these.

I do have one question however, has anyone tried or thought about using SMPS power supplies like the Coldamp units?
 
Many have thought about it and considered it a cheap and lightweight way to power amplifiers.

Many have thought about it and rejected the idea of SMPS.

A few have thought about it and realised that it is not simple to get an amplifier driving a reactive load with music signals to work properly with an SMPS.

There are a couple of Threads discussing some of the issues.
 
Many have thought about it and considered it a cheap and lightweight way to power amplifiers.

Many have thought about it and rejected the idea of SMPS.

A few have thought about it and realised that it is not simple to get an amplifier driving a reactive load with music signals to work properly with an SMPS.

There are a couple of Threads discussing some of the issues.

I'll have to read more about it I suppose. At first glance it seems like a way to reduce some of the cramped space in the enclosure.

Perhaps someone just needs to build one and test / measure it. Perhaps that someone is me! :vampire2: