MTC-MS-II Mid Side Matrix Construction Information

Construction information for DIY projects, including the MS Mid Side Matrix, Width Controller, Phono Transfer System, Insert Switcher and the Dual Class-A Amplifier. You can post your baby pictures here.
Matty-T
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Joined: Wed Jun 20, 2018 9:03 am

Re: MTC-MS-II Mid Side Matrix Construction Information

Post by Matty-T » Tue Jul 10, 2018 10:19 am

Im really bad at checking forums that I post on. But as far as the face plate, I got vintage potentiometer plates from ebay and all the little custom stick on signs came from here: https://www.legend-plates.com/
It ended up being cheaper than any quote I got to have the panel engraved.

Sylvain
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Joined: Fri Aug 10, 2018 9:06 pm

Re: MTC-MS-II Mid Side Matrix Construction Information

Post by Sylvain » Sat Aug 11, 2018 10:10 am

Great work Matty!

Here are some pics of my build which is an integration of the MTC-MS-II and the EEQ. Front pannel is temporary, hence the shoddy symetry and text. But it sounds great! Five square switches are (L to R): Enc, Dec, M/S, Mid, Side bypasses.
I used Lorlin 12 step(11 actually) switches for Width and Tilt because they were less expensive than Elmas. I used 9k resistors and that is quite functional, but I will experiment with R values at some point to maybe find some "sweet spots".

Thanks again Wayne for your help!
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mediatechnology
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Location: Oak Cliff, Texas
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by mediatechnology » Sat Aug 11, 2018 11:40 am

Beautiful work!

Where did you source the EAO-looking switches?
I saw those somewhere else recently as well and they look really nice.

Sylvain
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Joined: Fri Aug 10, 2018 9:06 pm

Re: MTC-MS-II Mid Side Matrix Construction Information

Post by Sylvain » Sat Aug 11, 2018 2:33 pm

Thanks Wayne!

The "EAO" lookalikes are from ebay. (Just search for: push button switch led 16mm)They are not the same solid feel as EAOs, but they work fine and they are about 1/10th the price of the reel thing.
One thing I discovered when wiring them to the MS2, is that they are advertised as LED switches but they are NOT. When I hooked them up to the MS2, the leds would not work. After opening one, I discovered they are (tiny)incandescent bulbs. But it was easy to replace them with LEDs.(3.5mm) So now they light-up as expected.

benewell
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by benewell » Thu Sep 06, 2018 12:07 pm

Wow... Beautiful work, kudos Matty and Sylvain!

I couldn't resist sharing as well. Thank you all for your help and guidance, It turned even out better than expected!

I used the MTC-IGFO, MSII, and 2 Insert Switcher boards to create this Master Console, as well as a velleman K8042 kit for powering the insert switcher relays. Elma Rotary Switches for gain, width, and tilt, NKK push buttons (and 3 position switches for Filters), and front panel + case from Front Panel Express. It's very quiet, clean, and does everything that I need to... and more. I'd be happy to answer any questions or assist if I can be of help! :)

Brian
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mediatechnology
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by mediatechnology » Thu Sep 06, 2018 12:18 pm

Thank you for sharing Brian. Nice work!
Want to finish mine?

Those of you that want referrals to build stuff chime in.
I'm always getting asked.

benewell
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by benewell » Thu Sep 06, 2018 12:59 pm

Thank you!

I was supposing more of an online "tech support" more than in person building :lol:
As building is more of a hobby, my limited expertise and days (weeks) of troubleshooting may not be suitable in the wild...

Sylvain
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Joined: Fri Aug 10, 2018 9:06 pm

Re: MTC-MS-II Mid Side Matrix Construction Information

Post by Sylvain » Wed Sep 12, 2018 11:25 am

Wow!
Very nice work all arround Brian. Nice front panel too!
I hope to evolve mine into something like yours someday with the i/o matrix and igfo.

I like those small square push button switches. Might I ask you who makes those?

Sylvain

benewell
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by benewell » Wed Sep 12, 2018 11:49 am

Thank you for the kind words Sylvain!

I used NKK's HB Series of Illuminated switches -> https://www.mouser.com/ProductDetail/nk ... cycode=USD


Brian

Sylvain
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Re: MTC-MS-II Mid Side Matrix Construction Information

Post by Sylvain » Wed Sep 12, 2018 1:46 pm

Thanks Brian!
I was looking for something like that for another project.

Sylvain

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