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PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

Custom Build Mixing Console
Custom Build Mixing Console
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Old 30th March 2019, 10:58 PM   #21
Xoc1 is offline Xoc1  United Kingdom
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The build looks great - Lots of man hours in there.
Interesting to see you are using local regulators.
Are you doing anything special with the LM317 - 337 regulators or are they fairly conventional circuits?
Have been rebuilding a mixer recently (Ecler Sclat) using the Panasonic FC caps and it was surprising how much this reduced the noise floor when running off a bench power supply during testing.
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Old 28th April 2019, 11:11 AM   #22
Vintage Audio Projec is offline Vintage Audio Projec
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Not that special with the lm317 -337 regulators. We do use a small capacitor on the adjust pint. (10-22f).
This makes the regulator work much better. don't go bigger then 10-22f.
On the output we use around 100F
And also decouple the output and input with 100nF close to the pins.
This way the lm317 works very nice and the noise will be lower then the noise coming from the preamp itself.
And for the opamp stages it's not a problem if you use good opamps.
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Old 28th April 2019, 11:51 AM   #23
Vintage Audio Projec is offline Vintage Audio Projec
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Ok guys,
A little update on our console build.

This is where we are now
Click the image to open in full size.

Connectors that are used to connect the BUS lines together. These are located on the mid section. there is one extra connector for a future expansion.

Click the image to open in full size.

Click the image to open in full size.

These are mil spec connectors made by amphenol.

This is the cable boom been made for the mid section modules.

Click the image to open in full size.

Back of the monitor section.
XLR's are used for external in/out
The rest comes from the smaller amphenol connector

Click the image to open in full size.

and then here is a small schematic overview of the midsection routing.
http://www.aman-nai.be/console/middensectie.pdf

There can still be small faults/changes on the schematic overview as we go along.
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Old 28th April 2019, 12:11 PM   #24
ICG is offline ICG  Germany
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Quote:
Originally Posted by Vintage Audio Projec View Post
The frontpanels where done by schaeffer. Al the rest of the metalwork we did ourselves (even the channel module cases) The channels are based on the 19" standard.
The mechanical work is amazing! It looks excellent too.

Quote:
Originally Posted by Vintage Audio Projec View Post
The thing is if you just want a mixing desk for hobby projects it would be cheaper to get some china whatever oem brand product. It will work as intended but it will not last. If you want something with very decent quality however it would be very difficult to find something to begin with and it will be VERY expensive.

[...]

Our goal is to make it last a long time and sound good.
I have deep respect about your craftsmanship. But, well, 'nobody' wants analogue mixers anymore. That's why you can get professional 24/32/48ch mixers from renowned EU manufacturers for below 1000 bucks. And they are built like tanks too. There are tons on the market, many become scrapped because they can't sell them.

You're not done yet and looks are easily deceiving but it looks you didn't plan to go for subgroups?
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Old 28th April 2019, 12:22 PM   #25
Vintage Audio Projec is offline Vintage Audio Projec
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There are 8 Subgroups

And while there are a lot of big mixers on the marker. Most of them are not inline, Don't use the classic neve circuits (all transformer coupled and class A)

And they are build like tanks but we decided to go one step further. (most consoles just use flat cable and subd connectors......we use all screened cable/ mill spec and XLR connectors)

So there is a big difference.
But indeed analog consoles are less used for mixing...
But you still need preamps to track.
The mixer is made with this in mind also.

Last edited by Variac; 29th April 2019 at 09:29 PM.
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Old 28th April 2019, 01:24 PM   #26
carlthess40 is offline carlthess40  United States
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Great work there. Would like to see a video of it when its up and running
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Old 6th May 2019, 09:00 PM   #27
Mark Tillotson is offline Mark Tillotson
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Simply stunning...
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Old 6th May 2019, 09:21 PM   #28
bonjonno is offline bonjonno  United States
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I was blown away by the initial posts and pics, but this latest stuff is a whole extra level. Can't wait for you to run music thru those circuits.
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Old 7th May 2019, 03:09 AM   #29
H713 is offline H713  United States
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Absolutely beautiful desk. And as expensive as a project like that is, when you compare it to the cost of buying and restoring an original Neve it starts to look pretty economical.
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Old 6th September 2019, 11:06 PM   #30
avtech23 is offline avtech23  Australia
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Custom Build Mixing Console
How is the project going? Looking forward to seeing more photos of your amazing build!
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