I need to start chasing all those that haven't paid.I pm'ed to see if there were any of these still available, but have not heard back. Are there gonna be some available?
Thanks
Depending on who drops out, some on the waiting list will get some.
I just don't know for sure right now.
All those who have requested have been added to the list on a first come first served basis.
I'll let you all know where we are once things settle down a bit.
Thanks for the PMs and emails from those who've received their preamps.
Stats update: 37 total orders posted, of which 11 have been received. I've sent out all the European orders and some worldwide so far. The remaining worldwide ones will go out over the next day or two.
I'll start chasing those who haven't paid to see if they're still interested and will begin clearing the backlog and hopefully get some stuff out to those on the waiting list. 🙂
Stats update: 37 total orders posted, of which 11 have been received. I've sent out all the European orders and some worldwide so far. The remaining worldwide ones will go out over the next day or two.
I'll start chasing those who haven't paid to see if they're still interested and will begin clearing the backlog and hopefully get some stuff out to those on the waiting list. 🙂
Here is one of my boards built and working. The eventual plan is to use 3 boards probably in one box as a 6 channel pre amplifier for my active crossovers. So as a quick test I have built this one in a 3d printed box with its transformer in a separate box.
All I can do is a loop back test using my Apogee Rosetta 800, the right mark results are the same with or without the Pre in the loop, so all I can determine is THD is below 0.0008%.
Thanks again Xavier, Bruno and Jan.


All I can do is a loop back test using my Apogee Rosetta 800, the right mark results are the same with or without the Pre in the loop, so all I can determine is THD is below 0.0008%.
Thanks again Xavier, Bruno and Jan.
All arrived good, excellent packaging and board quality.
In all a model of how a group buy should run..
Let me know if there was a shortfall in postage..
Many thanks.
Paul
In all a model of how a group buy should run..
Let me know if there was a shortfall in postage..
Many thanks.
Paul
Phew! Thanks Ed for posting that. As I haven't actually built one from the assembled verison, I had a slight concern it could be wrong. So your post is a massive relief.Here is one of my boards built and working. The eventual plan is to use 3 boards probably in one box as a 6 channel pre amplifier for my active crossovers. So as a quick test I have built this one in a 3d printed box with its transformer in a separate box.
![]()
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All I can do is a loop back test using my Apogee Rosetta 800, the right mark results are the same with or without the Pre in the loop, so all I can determine is THD is below 0.0008%.
Thanks again Xavier, Bruno and Jan.
Good to hear they sound great too! 😎
Thanks Paul. I've been able to save a few quid posting from work so in general, I'm OK.All arrived good, excellent packaging and board quality.
In all a model of how a group buy should run..
Let me know if there was a shortfall in postage..
Many thanks.
Paul
I sent out pretty much all of the intercontinental packages + a few EU ones today, making a total of 59 dispatched orders. I'm hoping to get the tracking numbers tomorrow and will email you all with the details.
Package
Hi Xavier,
Since it's all about feedback: Package received all in excellent condition
Tnx man!







Hi Xavier,
Since it's all about feedback: Package received all in excellent condition
Tnx man!







Yes Klaus, you're still on the waiting list.I hope I am still on the waiting list - if there is anything left.
Thanks for letting me know Peter 🙂Hi Xavier
Got the boards, it looks great. Thanks
Regards
Peter
I know the discussion would be for the other thread, but I'm interested: has anyone in this group buy built and begun listening yet?
I had to wait for some invoices to be paid before I could begin thinking about the through hole parts.. just putting together a parts list, numbers etc.
I had to wait for some invoices to be paid before I could begin thinking about the through hole parts.. just putting together a parts list, numbers etc.
Hi Xavier
The mailman just delivered it in fine condition 10 mins ago. Many thanks for your great effort.
Best wishes,
Lars
The mailman just delivered it in fine condition 10 mins ago. Many thanks for your great effort.
Best wishes,
Lars
Great jobHere is one of my boards built and working. The eventual plan is to use 3 boards probably in one box as a 6 channel pre amplifier for my active crossovers. So as a quick test I have built this one in a 3d printed box with its transformer in a separate box.
![]()
![]()
All I can do is a loop back test using my Apogee Rosetta 800, the right mark results are the same with or without the Pre in the loop, so all I can determine is THD is below 0.0008%.
Thanks again Xavier, Bruno and Jan.
I am planning similar set up.
Which speakers are you using?
Sent from my ONE A2003 using Tapatalk
Hi Xavier,
the package with the boards and the regulators arrived yesterday.
Excellent package, ultra fast shipping, great PCB and assembly quality and, first of all, excellent management of this unique group buy!
Thank you very much for give us the chance to have this wonderful preamplifier so unexpectedly easy and at a particularly affordable price for every perfectionist DIYer.
Kind regards,
Dimitrios
the package with the boards and the regulators arrived yesterday.
Excellent package, ultra fast shipping, great PCB and assembly quality and, first of all, excellent management of this unique group buy!
Thank you very much for give us the chance to have this wonderful preamplifier so unexpectedly easy and at a particularly affordable price for every perfectionist DIYer.
Kind regards,
Dimitrios
Great job
I am planning similar set up.
Which speakers are you using?
Sent from my ONE A2003 using Tapatalk
These:

Seos-12 horn, 10" mid range, 18" bass. The horn is 105db+ sensitive and I have had issues finding a quiet pre amplifier. I currently don't have them set up so I cant find out if this pre is quiet enough, I suspect it is.
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