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Old 8th December 2012, 03:51 AM   #1
EUVL is offline EUVL  Europe
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Default The F5X Balanced Preamp

Since we have all of the information about the F5X Power Amp in the Pass forum, I have taken the liberty of putting the F5X Preamp also here.
I hope Nelson wouldn't mind. Else I could ask the Moderators to move it elsewhere.

Attached here is Part 1 of the description.


Patrick
Attached Files
File Type: pdf F5XP Topology.pdf (42.6 KB, 1307 views)
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Last edited by EUVL; 8th December 2012 at 04:11 AM.
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Old 8th December 2012, 04:05 AM   #2
EUVL is offline EUVL  Europe
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Just to show that this is not all paper work, here is some hardware.
More to follow, gradually........


Patrick
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File Type: jpg F5X Pre PCB V2b s.jpg (531.3 KB, 1946 views)
File Type: jpg 121125 F5XP Backplane a1s.jpg (108.5 KB, 1813 views)
File Type: jpg 121125 F5XP Backplane a2s.jpg (110.1 KB, 1759 views)
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Old 8th December 2012, 06:09 AM   #3
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wow. i had never heard of this interesting
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Old 8th December 2012, 06:36 AM   #4
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> wow. i had never heard of this

It has been announced before :
F5X -- the EUVL Approach - The Build Thread


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Old 8th December 2012, 07:18 AM   #5
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aha. i must admit that i never followed the thread very close.
there is something about X-ing that make me go no no
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Old 8th December 2012, 07:32 AM   #6
EUVL is offline EUVL  Europe
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Nothing wrong with X'ing.
Ask those who build / own the AX variants.
Not to speak if those who build the F5X on their own.




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Old 8th December 2012, 07:37 AM   #7
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i think it'd the complexity of it that tell me no no
i bet it is very good when it is working
but how is it (F5x and the preamp) when used with a unbalanced source?
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Old 8th December 2012, 07:42 AM   #8
EUVL is offline EUVL  Europe
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That has been discussed extensively in the very old Aleph-X thread, and also the F5X Build thread.
Please search and read.

The F5X Preamp supports per channel 3 single ended inputs, as well as 3 balanced.

Of course you can also use many of the SE to Balanced converters around, including many single IC versions.


Patrick
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Old 8th December 2012, 07:56 AM   #9
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read 230 replyes to get the gain of the preamp? it is not THAT interesting
well. a aleph P1.7, a borbley pre amp and a J-fet boz will have to do

EDIT: it said. about 20db

Last edited by AudioSan; 8th December 2012 at 07:59 AM.
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Old 11th December 2012, 12:56 AM   #10
Horio is offline Horio  United States
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Nice preview!

Looking forward to seeing a sneak peek of the chassis.
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