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R/E/P => R/E/P Archives => Brad Blackwood => Topic started by: bblackwood on August 18, 2005, 09:44:42 am

Title: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: TotalSonic 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
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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:

So you can see, total parts cost was only about $3000. That's pretty close, give or take a few dollars here or there...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: OTR-jkl 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...?
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: OTR-jkl on August 18, 2005, 03:42:20 pm
What I thought.
Thnx.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: stereopw 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....
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: stereopw on August 18, 2005, 05:24:43 pm
Thanks Brad !

Phil

PS : When you use MS do you have an other console ?
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jason goz 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
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: OTR-jkl 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...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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:

Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: ammitsboel 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?
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood 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'.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jason goz on August 23, 2005, 10:15:37 am
Thanks
Another question...
Why have you not used shielded wire?
Jason
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on August 23, 2005, 10:16:52 am
Jason Goz wrote on Tue, 23 August 2005 09:15

Why have you not used shielded wire?

The entire chassis is shielded...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Greg Reierson on August 23, 2005, 12:10:29 pm
ammitsboel wrote on Tue, 23 August 2005 08:48

Relays don't sound as good as switches.




Mehcanical relays are switches.

My experience has been that a good gold contact switch and a good relay (Aromat, Magnecraft) sound exactly the same. Each offer functional advantages, but neither seem to impact the sound in any significant way.

What's your evidence that switches sound better than good relays? I'm really interested since I use relays often.


GR
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jason goz on August 23, 2005, 12:54:18 pm
Brad
Quote:

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).


I like your style...where can i get those shallcos switches from.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: OldSonic on August 23, 2005, 01:31:34 pm
ammitsboel wrote on Tue, 23 August 2005 17:48

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

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




  Relays are just switches. Why do you think they are not so good?
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: JGreenslade on August 23, 2005, 01:53:37 pm
ammitsboel wrote on Tue, 23 August 2005 14:48

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

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



One million dollars awaits you Henrik.

If you can hear the difference between a decent inert-gas filled relay and a switched attenuator you're wasted in the music industry, honestly - if I had a talent like that I'd be off to enroll in the Intelligence Services. The cold war may be over, but I'm sure they'll make an exception for someone with an ability like that.

Aren't you in danger of giving away trade-secrets showing people what's in your box Brad? Surely the business angle would be to seal the case and suggest something magical was going on under the hood :-) Clean work btw!

Justin
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: zetterstroem on August 23, 2005, 06:20:23 pm
justin.... with the talent you have they have an open position as chairman here... Very Happy

http://www.alaska.net/~clund/e_djublonskopf/FlatHome.htm
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: ammitsboel on August 24, 2005, 10:33:48 am
Greg Reierson wrote on Tue, 23 August 2005 17:10

ammitsboel wrote on Tue, 23 August 2005 08:48

Relays don't sound as good as switches.




Mehcanical relays are switches.

My experience has been that a good gold contact switch and a good relay (Aromat, Magnecraft) sound exactly the same. Each offer functional advantages, but neither seem to impact the sound in any significant way.

What's your evidence that switches sound better than good relays? I'm really interested since I use relays often.

My experiences has just been lesser with relays compared to switches.
I think if you really have to be anal about it and make it as good as possible then I would use switches instead of relays.
I haven't studied why exactly this is thoug. Maybe the material... maybe because they are... dare I say it... MAGNETIC!!!

Henrik
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Ronny on August 24, 2005, 12:00:31 pm
ammitsboel wrote on Wed, 24 August 2005 10:33

Greg Reierson wrote on Tue, 23 August 2005 17:10

ammitsboel wrote on Tue, 23 August 2005 08:48

Relays don't sound as good as switches.




Mehcanical relays are switches.

My experience has been that a good gold contact switch and a good relay (Aromat, Magnecraft) sound exactly the same. Each offer functional advantages, but neither seem to impact the sound in any significant way.

What's your evidence that switches sound better than good relays? I'm really interested since I use relays often.

My experiences has just been lesser with relays compared to switches.
I think if you really have to be anal about it and make it as good as possible then I would use switches instead of relays.
I haven't studied why exactly this is thoug. Maybe the material... maybe because they are... dare I say it... MAGNETIC!!!

Henrik



Maybe because our ears play tricks on us when we evaluate solo and not in the blind.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on August 24, 2005, 04:14:44 pm
Jason Goz wrote on Tue, 23 August 2005 11:54

where can i get those shallcos switches from.

http://www.shallco.com/
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: ammitsboel on August 25, 2005, 08:42:41 am
Ronny wrote on Wed, 24 August 2005 17:00

Maybe because our ears play tricks on us when we evaluate solo and not in the blind.

I think if you are not tired, hungry, stoned, depressed or having hangovers then you should be able to catch these differences with no troubles.

Best Regards
Henrik
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jlarcombe on August 25, 2005, 11:34:58 am
ammitsboel wrote on Thu, 25 August 2005 13:42

I think if you are not tired, hungry, stoned, depressed or having hangovers then you should be able to catch these differences with no troubles.


The difference between relays and switches?

Are you joking?

Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Ronny on August 25, 2005, 12:11:16 pm
jlarcombe wrote on Thu, 25 August 2005 11:34

ammitsboel wrote on Thu, 25 August 2005 13:42

I think if you are not tired, hungry, stoned, depressed or having hangovers then you should be able to catch these differences with no troubles.


The difference between relays and switches?

Are you joking?





This reminds of a discussion I heard once, where they were arguing about the differences between corvettes and stingrays.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Viitalahde on August 26, 2005, 01:05:45 am
ammitsboel wrote on Wed, 24 August 2005 15:33

MAGNETIC!!!


I asked you this in some previous topic months ago, but you didn't answer.

If you place a horseshoe magnet next your speaker cables, do you hear a difference?

A relay's coil is in a magnetic state in one position only. It's up to the designer whether that's in IN or OUT state, in the case of a bypass switch for example. Even then, designers tend to use DC operated relays, which means you don't have a small 50hz magnetic field next to your signal.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jackthebear on August 26, 2005, 01:34:44 am
Ronny wrote on Fri, 26 August 2005 02:11

jlarcombe wrote on Thu, 25 August 2005 11:34

ammitsboel wrote on Thu, 25 August 2005 13:42

I think if you are not tired, hungry, stoned, depressed or having hangovers then you should be able to catch these differences with no troubles.


The difference between relays and switches?

Are you joking?





This reminds of a discussion I heard once, where they were arguing about the differences between corvettes and stingrays.



Sheesh.....EVERYONE knows the corvette is a marine creature
Very Happy
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: ammitsboel on August 26, 2005, 04:50:37 am
jlarcombe wrote on Thu, 25 August 2005 16:34

ammitsboel wrote on Thu, 25 August 2005 13:42

I think if you are not tired, hungry, stoned, depressed or having hangovers then you should be able to catch these differences with no troubles.


The difference between relays and switches?

Are you joking?

Of course I'm joking.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: antiguru on August 29, 2005, 03:16:59 pm
Hi,
  new to the forum, and this looks like a fun project for me, any chance of getting the model numbers on those parts?  

Maybe a scan of a wiring diagram?

thanks!

-Quentin Muhlert
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Peter Simonsen on September 27, 2005, 10:38:16 am
bblackwood wrote on Tue, 23 August 2005 16:10

ammitsboel wrote on Tue, 23 August 2005 08:48

Brad, what's that thing under your speaker?

Umm, they're called 'stands'.


Laughing  Laughing  Laughing  Laughing  Very Happy  Laughing  Laughing  Laughing

Im sorry...but somebody just hit something deep inside of me I cant help it tears are roling down my face  Laughing

Kind regards

Peter
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: ammitsboel on September 27, 2005, 10:50:11 am
bblackwood wrote on Tue, 23 August 2005 15:10

ammitsboel wrote on Tue, 23 August 2005 08:48

Brad, what's that thing under your speaker?

Umm, they're called 'stands'.

Razz

...care to share some more information than that??
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on September 27, 2005, 11:07:24 am
ammitsboel wrote on Tue, 27 September 2005 09:50

bblackwood wrote on Tue, 23 August 2005 15:10

ammitsboel wrote on Tue, 23 August 2005 08:48

Brad, what's that thing under your speaker?

Umm, they're called 'stands'.

Razz

...care to share some more information than that??

Sure, they can be found here...
Title: Shallcos
Post by: eric broyhill on October 15, 2005, 02:52:24 am
a question for brad or anyone for that matter,  would you be kind enough to tell me the model/part # of those shallco switches you used for the insert bypass/on you used in a mastering console I found in this forum you made yourself, also the best wire to use, were to buy this stuff.  anything to help me out.  

Im poor, can't afford to buy a real console so I must resort to the home made recipe  E
Title: Re: Shallcos
Post by: bblackwood on October 15, 2005, 08:11:32 am
eric broyhill wrote on Sat, 15 October 2005 01:52

a question for brad or anyone for that matter,  would you be kind enough to tell me the model/part # of those shallco switches you used for the insert bypass/on you used in a mastering console I found in this forum you made yourself, also the best wire to use, were to buy this stuff.  anything to help me out.  

Im poor, can't afford to buy a real console so I must resort to the home made recipe  E

Hi Eric, the switches can be ordered direct from Shallco by going here then clicking on 'Precision Rotary Switch Products'. I used Series D switches in my console.

As for wire, per DC's recommendation I went with teflon insulated wire - it's easier to work with as it's virtually impervious to the heat from a soldering iron. Wire gauge isn't very important here - I used 20 AWG which is overkill - so don't sweat it...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: mastermind on December 10, 2005, 02:57:47 am
Ok.... so here's stupid question #347....

So, for your insert switches I see you're using 4 deck switches, and I'm assuming there's one pole per deck (tell me if I'm wrong).

In this setup, I'm thinking each insert switch switches between the insert before (out) or the return of it's own loop (in).

Ok fine.

But since you're just switching the returns of each loop, the sends remain active regardless. So, the DAC (or analog machine) that feeds the chain on the i/p is effectively feeding all 6 pieces of gear in the chain (if all inserts were in bypass - less as you switch gear into the chain).

In any case, would this be a problem ??

Or am I over thinking this ?

t



Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on December 10, 2005, 08:18:24 am
Each insert point is switching the 'input' of the insert on and off - when the insert is switched out, the gear is not in the chain at all. When set to the 'on' position, the signal is sent out to the piece then returned and fed to the next device - if it is turned 'off', that insert basically doesn't exist to the chain...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: mastermind on December 10, 2005, 01:01:13 pm
I understand, but - if the switch is only switching the input (or return) of the loop, the output (or send) of the loop stays connected, so if all inserts were in "out", your source o/p is getting multed 6 times into 6 pieces of gear (although since the switches are set to "out", the output of each piece is disconnected.

To competely remove the piece of equipment, you'd have to switch at both the send and return of the loop.

I'm wondering if by not switching at both the send and return, and just switching at the return, if this presents loading issues to the source feeding the chain?

Obviously, if one can "get away" with not having to switch the send to the gear, then that simplifies switching. If we want to switch both the send and return, then we need 8 poles on the switch (as opposed to just 4 for doing the return only).

I've multed balanced signals in "non-critical" applications before and not even batted an eye... I just want to know if this would be a problem in this more mission critical mastering application...

t

Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on December 10, 2005, 02:46:02 pm
No, you're missing what I intended to say, as I said it in a rather backwards way upon re-reading it.

The actual send is what is switched in and out - IOW, if I switch my STC-8M out of the chain, the STC-8 is no longer seeing any input signal at all. So when I switch things out of the chain, they are not present as a load at all...

And you do remember that this whole console is single-ended, right?
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: mastermind on December 10, 2005, 03:11:56 pm
bblackwood wrote on Sat, 10 December 2005 13:46


And you do remember that this whole console is single-ended, right?



Sorry... I must have missed that part... but that makes sense...

I'll try to pay better attention in class next time....

t

Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Viitalahde on December 10, 2005, 03:24:59 pm
I'm about to design a new console some time next year, it would probably have inserts like this. Maybe even the insert system I've been thinking of - total control of a gear's place in chain.

I'm also thinking of adding metering there, probably VU only. The signal path would probably stay all passive.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: TotalSonic on December 10, 2005, 04:00:45 pm
Viitalahde wrote on Sat, 10 December 2005 20:24

I'm about to design a new console some time next year, it would probably have inserts like this. Maybe even the insert system I've been thinking of - total control of a gear's place in chain.


Now that would be way cool!!  I'd love to see the schematic for that if you do indeed build one as that type of control interests me as well.  Sounds mighty expensive for the parts though!  

Quote:


I'm also thinking of adding metering there, probably VU only. The signal path would probably stay all passive.


Sounds nice.  I'm sure you'll do a fantastic job based on your diy's that you've posted here before.

Best regards,
Steve Berson
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Viitalahde on December 11, 2005, 03:09:28 am
TotalSonic

I'd love to see the schematic for that


Well, the basic idea is very simple actually. You have a row of rotary switches, let's say four of them. Thus you have four inserts. The output of switch one goes to input of switch two and so on.

Each rotary switch position (on every insert) means a specific piece of equipment on the rack. 1=EQ, 2=Compressor, 3=Masterbuss Autotune etc. Very simple to do in unbalanced chain with a, say, six-position 4-deck switch. two decks for send, two for return.

Then you just route your signal by turning the knobs. 2, 1, 3 - 4, 2, 6.. the only real problem is that basically, you can set the units in feedback if you choose the same compressor on inserts one and two, for example.  Sad

This part is still unsolved. A total answer to this would be to do the thing with relays + digital logic, but it gets too complicated for the purpose. For myself, I might just do it passively like described and add a "mute" button that cuts all the outputs (with a relay) while sequencing the gear. I press that while I turn the knobs. When you get that down to your spine, you'll be OK.  Cool You don't have to do that all the time anyway.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 21, 2007, 04:27:45 pm

Update to post final pic (been finished for years, never posted it here):

http://euphonicmasters.com/misc/ATC-1.gif
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Larrchild on November 21, 2007, 05:15:19 pm
Sontec knobs are the "Maroon Neve Knob" to mastering cats, aren't they?
Very Nice! I love the way those feel too.
Bravo.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 21, 2007, 05:20:56 pm
I do like the Elmas. I ordered the winged version for the new EQ, we'll see how they look in comparison...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Thomas W. Bethel on November 21, 2007, 06:34:41 pm
Viitalahde wrote on Sat, 10 December 2005 15:24

I'm about to design a new console some time next year, it would probably have inserts like this. Maybe even the insert system I've been thinking of - total control of a gear's place in chain.

I'm also thinking of adding metering there, probably VU only. The signal path would probably stay all passive.


Make sure you use active circuits to isolate your VU meters or you could be introducing some distortion into the signal path! Selenium Rectifiers across 600 olm line are NOT GOOD~
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Larrchild on November 21, 2007, 09:14:17 pm
And for precision attenuators, I'm using Goldpoint's new SMD units with Elma switches. +-.2dB tracking! I'm truly impressed. Buck-thirty five, though.
Worth it for these transfer-panel things.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: jdg on November 21, 2007, 09:20:12 pm
i use those same goldpoints.
Love em!
easy for a moosefaced-bananafigered-doofus like me to even solder them Smile
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 21, 2007, 09:35:32 pm
Larrchild wrote on Wed, 21 November 2007 20:14

And for precision attenuators, I'm using Goldpoint's new SMD units with Elma switches. +-.2dB tracking! I'm truly impressed. Buck-thirty five, though.
Worth it for these transfer-panel things.

That's a good price. I still prefer Shallco's when space is available, but they are definitely spendy...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Bob Boyd on November 22, 2007, 02:08:28 am
Looks nice Brad.  Do you ever do any M/S EQ?  I use it fairly frequently and love having that option on the Master.  

Phase flipping one side of my Monitor and switching to mono at the same time also allows for quickly hearing just the side processing for focused adjustment.

Just thinking through signal path out loud here...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 22, 2007, 08:08:46 am
Bob Boyd wrote on Thu, 22 November 2007 01:08

Looks nice Brad.  Do you ever do any M/S EQ?  I use it fairly frequently and love having that option on the Master.  

Phase flipping one side of my Monitor and switching to mono at the same time also allows for quickly hearing just the side processing for focused adjustment.

Just thinking through signal path out loud here...

Yah, I have a custom built M/S matrix.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: e-cue on November 24, 2007, 01:54:36 am
And it's dishwasher safe.  Awesome Brad.
http://www.euphonicmasters.com/misc/ATC-1_day2_fullfront.jpg
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 25, 2007, 04:19:22 pm
e-cue wrote on Sat, 24 November 2007 00:54

And it's dishwasher safe.  Awesome Brad.

When I say it's clean, I mean it's clean...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on November 26, 2007, 01:17:57 pm
I split all the EQ talk off to a new thread - if interested you can read it here...
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: OTR-jkl on October 08, 2010, 03:03:03 pm
Looking into this deal more these days.......so I have a few questions:

1- Which type of switch would be better to use for (balanced) inserts?
A) 4 pole, 2 position, dual deck  or
B) 2 pole, 2 position, quad deck  or
(I guess the question is: is there a sonic difference or preference to keeping each line on its own deck vs. one deck handles + & - ...?)

2- What is the proper way to handle the shield (gnd; pin 1) inside the box?

3- Brad, can you tell us again who you used to make the face-plate and where you got the box?

Any input and/or suggestions is appreciated.
Thanks.
JL
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on October 08, 2010, 05:33:23 pm
I'll let someone with more tech knowledge answer the switch question, though I doubt it matters either way.

No grounding in my box other than taking pin3 to ground at the XLR inputs.

Chassis is made by Par-Metal (awesome company). Faceplate was designed using FrontPanelExpress software and ordered through them directly. I've used this for every piece of custom gear in my room (probably ordered a dozen panel by now). Great company, great work.
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: tgauge on November 06, 2010, 02:20:07 pm
A quick note for those not familiar with Par-Metal and Front Panel Express.

Par-Metal: The cases listed on their site come with metal handles and front panels by default.  If you ask for a case without the handles you get a small discount.  Also, if you are planning to have a custom front panel made for you from FPE or any other company, you can also request your case from Par-Metal without one to save another few dollars.  You can essentially get the case for $10+ cheaper than what they have listed on their site.

Front Panel Express: From experience, quadruple check all hole sizes and locations before ordering.  Print the image out and lay the knobs on the panel to verify the spacing will work.  Also, make sure to account for the size of the component on the inside.  There is no undo once they run the panel through the CNC machines.

Hope that helps.

BTW-Love the passive console.  I designed and am building one similar but it's all relays with several other features.

-Taylor
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: Andrew Hamilton on February 23, 2011, 05:56:57 pm
The pictures are great.  Did you ever post the wiring diag.?    Also, is there a good DIY alu XLR jack hole-punch?  




Thanks,
Andrew
Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: bblackwood on February 23, 2011, 06:18:40 pm
Andrew Hamilton wrote on Wed, 23 February 2011 16:56

The pictures are great.  

Thanks - looks like I never posted a final pic - decided against the red lettering and went with basic silver...

edit - oops, looks like I did post one back in 2007...

http://euphonicmasters.com/misc/ATC-1.gif

Quote:

Did you ever post the wiring diag.?

Nothing more detailed than the one in the OP. It's pretty simple...

Quote:

Also, is there a good DIY alu XLR jack hole-punch?  

I ordered these chassis with the holes in them, I think the hole needed will vary according to what panel-mount XLR you use.

Strange to think I've been using this thing for about seven years now...


Title: Re: Euphonic Analog Transfer Console (ATC-1)
Post by: chrisdoremus on February 26, 2011, 02:02:40 am
Cool... Console... I... Like... It...

-Chris...