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Author Topic: Euphonic Analog Transfer Console (ATC-1)  (Read 21005 times)

bblackwood

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Euphonic Analog Transfer Console (ATC-1)
« on: August 18, 2005, 09:44:42 am »

Well, since the RecPit archives are still down and I have been getting requests from several guys about the thread discussing the design and build of the ATC-1 console, I'm going to post the signal flow and build pics here. Any further questions should be posted here as well...

http://www.euphonicmasters.com/misc/ATC-1_Signal-flow.gif

http://www.euphonicmasters.com/misc/shallcos.jpg

http://www.marchandelec.com/att24bt.jpg

http://www.euphonicmasters.com/misc/ATC-1_day1_back.jpg

http://www.euphonicmasters.com/misc/ATC-1_day1_front.jpg

http://www.euphonicmasters.com/misc/ATC-1_day2_fullfront.jpg
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Brad Blackwood
euphonic masters

bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #1 on: August 18, 2005, 09:44:56 am »

http://www.euphonicmasters.com/misc/ATC-1_inserts.jpg

http://www.euphonicmasters.com/misc/ATC-1_almost_there.jpg

http://www.euphonicmasters.com/misc/ATC-1_wired.jpg

http://www.euphonicmasters.com/misc/ATC-1_complete.jpg

http://www.euphonicmasters.com/misc/ATC-1_complete_tempknobs.jpg
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Brad Blackwood
euphonic masters

TotalSonic

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #2 on: August 18, 2005, 10:31:42 am »

geez Brad - how can you use such a dinosaur!  There's no markings in dB for your level attenuator! Very Happy

joking - I'm joking!

I actually really miss BK's post here - guess he's really busy these days.

Anyway - how  about posting a parts list?

Best regards,
Steve Berson

bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #3 on: August 18, 2005, 12:01:52 pm »

TotalSonic wrote on Thu, 18 August 2005 09:31

geez Brad - how can you use such a dinosaur!  There's no markings in dB for your level attenuator!

And yet, I'm still somehow able to work.

Quote:

how  about posting a parts list?

I have no idea where the list is now, but think I can itemize it from memoory:

  • (1) Shallco / Holco / Marchand attenuator - $500
  • (6) Shallco insert switches - $1200
  • (2) Shallco source switches - $400
  • (1) Apem DBDT(CO) toggle - $60
  • (44) Neutrik XLR's - $265
  • (2) Spools teflon coated silver stranded wire (20AWG) - $100
  • (1) Par-Metal custom chassis (pre-punched rear panel) - $250
  • (1) Custom engraved front panel (FPD) - $150
  • Assorted Elma knobs - $100
So you can see, total parts cost was only about $3000. That's pretty close, give or take a few dollars here or there...
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Brad Blackwood
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OTR-jkl

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #4 on: August 18, 2005, 01:49:10 pm »

Hey Brad -
I've always wondered how you determine the order of your inserts...

Does it follow 1-2-3-4-5-6 and you have to repatch if you decide to change the gear order? IOW, if your Sontec is patched to Insert #1 and the Ibis is in Insert #2 and you decide that you want to hit the Ibis first and then the Sontec, do you repatch on the back? or what...?
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J Lowes · OTR Mastering
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bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #5 on: August 18, 2005, 02:04:34 pm »

OTR-jkl wrote on Thu, 18 August 2005 12:49

Hey Brad -
I've always wondered how you determine the order of your inserts...

Does it follow 1-2-3-4-5-6 and you have to repatch if you decide to change the gear order? IOW, if your Sontec is patched to Insert #1 and the Ibis is in Insert #2 and you decide that you want to hit the Ibis first and then the Sontec, do you repatch on the back? or what...?

Yep, the order is set - if I need to change it I crawl underneath...
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Brad Blackwood
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OTR-jkl

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #6 on: August 18, 2005, 03:42:20 pm »

What I thought.
Thnx.
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J Lowes · OTR Mastering
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stereopw

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #7 on: August 18, 2005, 05:18:24 pm »

HI Brad,
I am new to the forum....thanks for all these great infos....
Sorry for these basic questions....
Is the ATC1 the console you are using everyday ?
Is there any electonics inside ? (or is that only switches, I mean...)

Are you using a M-S system to master ? (using the ATC-1)
On that console you have only one output for 1 pair of speaker or are you using a switcher after it ?

Thanks for the info....
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bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #8 on: August 18, 2005, 05:21:53 pm »

stereopw wrote on Thu, 18 August 2005 16:18

Is the ATC1 the console you are using everyday ?

Yes.

Quote:

Is there any electonics inside ? (or is that only switches, I mean...)

Nope, completely passive.

Quote:

Are you using a M-S system to master ? (using the ATC-1)

Not in the ATC-1, no.

Quote:

On that console you have only one output for 1 pair of speaker or are you using a switcher after it ?

I only have one pair of speakers in the mastering room.
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Brad Blackwood
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stereopw

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #9 on: August 18, 2005, 05:24:43 pm »

Thanks Brad !

Phil

PS : When you use MS do you have an other console ?
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jason goz

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #10 on: August 23, 2005, 08:27:39 am »

Hello Brad,
Looks good,I need something similar and you have inspired to get my soldering iron out,But i got a few questions.
1,Why no relays?
2,Why dials instead of switches(I was considering a bank of  switches that latch eg you can only press one of that particular bank at any time.)
3,On the back plate you have (i assume)12i/p and o/p .Apart from the mon out what are the others.
Thanks

OTR-jkl

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #11 on: August 23, 2005, 08:36:20 am »

Jason Goz wrote on Tue, 23 August 2005 07:27

3,On the back plate you have (i assume)12i/p and o/p .Apart from the mon out what are the others.
Thanks


See the block diagram at the top of the thread - it should answer your question...
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J Lowes · OTR Mastering
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bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #12 on: August 23, 2005, 08:39:54 am »

Jason Goz wrote on Tue, 23 August 2005 07:27

1,Why no relays?

The switches chosen have huge surface area contact and relays add to complexity. I like the KISS priniciple...

Quote:

2,Why dials instead of switches(I was considering a bank of  switches that latch eg you can only press one of that particular bank at any time.)

The Shallcos were chosen as they have a large surface area and the action of the wiper across the surface keeps the contact surface clean. That and they are mil-spec and will be working fine long after I'm dead (reliability).

Quote:

3,On the back plate you have (i assume)12i/p and o/p .Apart from the mon out what are the others.

Let's see:
  • (12) XLR's for insert sends
  • (12) XLR's for insert returns
  • (12) XLR's for source
  • (2) XLR's for DAW send
  • (2) XLR's for DAW return
  • (2) XLR's for meter out
  • (2) XLR's for monitor out (to amp/speakers)

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Brad Blackwood
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ammitsboel

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #13 on: August 23, 2005, 09:48:38 am »

Jason Goz wrote on Tue, 23 August 2005 13:27

1,Why no relays?
Relays don't sound as good as switches.

Brad, what's that thing under your speaker?
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bblackwood

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Re: Euphonic Analog Transfer Console (ATC-1)
« Reply #14 on: August 23, 2005, 10:10:46 am »

ammitsboel wrote on Tue, 23 August 2005 08:48

Brad, what's that thing under your speaker?

Umm, they're called 'stands'.
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Brad Blackwood
euphonic masters
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