Small mixer

3/12/2014

Here's a small mixer that i'm working on. It may not seem like much, but for me this is quite a large undertaking. It's not really something I need so i'm building this purely as a personal challenge.

4 channels with gain, eq, pan and volume
Good preamps with balanced direct outputs
3 band active EQ per channel
VU metering, switchable for each channel or main L/R
Balanced stereo output
Headphone output in stereo
Good quiet regulated powersupply

I made my own vero layout for a preamp based on the INA217 datasheet. It sounds very good!

to be continued...

10 Comments

Leonardo

3/29/2015 02:18:33 am

Looks great! On your layout, what does ut- and ut plus stand for?

Fredrik Lyxzén link

3/29/2015 03:34:10 am

Thanks :) Ut means out (wrote that in swedish by accident). It's a balanced output hence the plus and minus.

petey twofinger

9/25/2016 09:26:09 pm

bravo !!

seba

10/11/2017 08:01:08 am

any chance to see the preamp veroboard with +48, and hpf? it would be a killer project!!

seba

10/11/2017 08:03:27 am

and... the ground is connected to pin 1 of xlr and out 3 right? thanks!

olly link

10/12/2017 01:40:51 am

How are the capacitators orientated?
And yes Phantom power would be great!

codybecth link

4/14/2022 11:04:04 am

Great Article! Thank you for sharing this very informative post. I'm looking forward to the latest one.

Danielle link

6/20/2022 04:13:56 am

Great read thankyyou

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2/25/2023 11:56:26 pm

All your hard work is much appreciated. Nobody can stop to admire you. Lots of appreciation.

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Small mixer

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