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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => LAB Lounge => Topic started by: Justin Myers on June 03, 2014, 04:17:56 AM

Title: Crown Itechs and AES connections
Post by: Justin Myers on June 03, 2014, 04:17:56 AM
Hello,

I have 3 Itech HD amps and 2 Itech amps.
I plan to buy a Midas stagebox with AES i/o and was wondering if I ran AES into my Itechs, can I just daisy chain the AES down the line of amps? Or do I need some sort of AES distro?

Thanks
Title: Re: Crown Itechs and AES connections
Post by: Bill Schnake on June 03, 2014, 06:22:14 AM
Hello,

I have 3 Itech HD amps and 2 Itech amps.
I plan to buy a Midas stagebox with AES i/o and was wondering if I ran AES into my Itechs, can I just daisy chain the AES down the line of amps? Or do I need some sort of AES distro?

Thanks
Hi Justin, the answer to your question is yes.  You can use the AES In on the first amp and then AES Out to loop to the AES In on the second amp.  Repeat as needed.  ;)

Make sure you are not using microphone cable for the AES connections.  Use cable made to carry a digital signal.

Best of luck to you.

Bill  8)
Title: Re: Crown Itechs and AES connections
Post by: David Sturzenbecher on June 03, 2014, 07:56:51 AM
If you read the manual for your iTechHDs it states crowns recommendation how many times you can split the signal. It's different for different sample rates. I want to state they say four times at 96k and right times at 48k. Don't quote me on that though.


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Title: Re: Crown Itechs and AES connections
Post by: Mark Jastrzebski on June 03, 2014, 12:25:33 PM
Hello,

I have 3 Itech HD amps and 2 Itech amps.
I plan to buy a Midas stagebox with AES i/o and was wondering if I ran AES into my Itechs, can I just daisy chain the AES down the line of amps? Or do I need some sort of AES distro?

Thanks

Can you send AES/EBU from the console to the midas stagebox?
Title: Re: Crown Itechs and AES connections
Post by: Mike Pyle on June 03, 2014, 01:01:57 PM
I want to state they say four times at 96k and right times at 48k. Don't quote me on that though.

 :)
Title: Re: Crown Itechs and AES connections
Post by: David Sturzenbecher on June 03, 2014, 01:37:14 PM
:)

Its ok, my quote was right.  Here is what is in the iTechHD 4x3500 Manual


Quote
  If multiple connectors are needed for AES3 distribution from a
single AES3 source, the following shows the number of AES
connections in parallel based on AES3 switching frequency.
Frequency # of Connections
96kHz 4 AES3 Pairs
48kHz 8 AES3 Pairs
44.1kHz 8 AES3 Pairs
***Please note with good quality 110 ohm shielded digital cable,
it is possible to obtain a higher number of connections than stated
here. It is up to the user to test this based on their use case. The
connections stated here are based on worst case analysis. 
Title: Re: Crown Itechs and AES connections
Post by: Ray Aberle on June 03, 2014, 01:45:14 PM
Its ok, my quote was right.  Here is what is in the iTechHD 4x3500 Manual

Maybe he giggled at the "right times at 48k" line. idk. Silly iPhones, right?!?

-r
Title: Re: Crown Itechs and AES connections
Post by: David Sturzenbecher on June 03, 2014, 01:47:00 PM
Ha... Yup. Hard to catch things sometimes when your brain knows what it meant to type.


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Title: Re: Crown Itechs and AES connections
Post by: Justin Myers on June 03, 2014, 07:02:11 PM
Sweet, looks like I'm in business.  Thanks.

Took me forever to find it in the manual.

Can you send AES/EBU from the console to the midas stagebox?

Yes, DL155.

Title: Re: Crown Itechs and AES connections
Post by: Ray Aberle on June 03, 2014, 07:18:11 PM
Ha... Yup. Hard to catch things sometimes when your brain knows what it meant to type.


Sent from my iPhone using Tapatalk

And sometimes it's the iPhone. "I am SURE you meant to say "right," because if you intended to say "eight," certainly you would have just pressed "8" since heaven forbid in this day and age, no one would ever want to type "eight" when they could easily put in "8."

On my last phone, I sent "VRX" so much that auto-correct did that first instead of "try." Haha.

-Ray
Title: Re: Crown Itechs and AES connections
Post by: Mark Jastrzebski on June 03, 2014, 10:03:11 PM

Yes, DL155.

Thanks. I have a couple of DL153s and I thought I was missing something.
Title: Re: Crown Itechs and AES connections
Post by: Justin Myers on June 04, 2014, 05:18:56 PM
Thanks. I have a couple of DL153s and I thought I was missing something.
Sweet, I actually think I might do that too instead of 155 now.  2 x 153 once I have the money.
I can always run an AES3 cable out from FOH digitally connect to the Itechs.
Title: Re: Crown Itechs and AES connections
Post by: Tim Padrick on June 05, 2014, 12:13:43 AM
Nah, get the stage box so your AES outs are on the deck.  Remember that you can patch to multiple outs, giving yourself a splitter.
Title: Re: Crown Itechs and AES connections
Post by: Justin Myers on June 05, 2014, 07:50:07 AM
Nah, get the stage box so your AES outs are on the deck.  Remember that you can patch to multiple outs, giving yourself a splitter.

But I'd only use one AES though to get signal to FOH. All my wedges are powered boxes so I was thinking having more analogue outs would be more useful in my case. As much as I would like having a full digital path to my amps.