Digital crossover with an AES in & out for 4-way loudspeaker management?

[phile1]

hi olsond3,
nice ideas too !

but in the digital chain,
as we get a signal from USB (often), the convertion to AES is better than to spdif, because less jitter-sensitive (to get clear : AES is less jitter-sensitive to spdif)

 

[tommus]

https://www.thomannmusic.com/the_t.racks_fir_dsp_408.htm

I just got one of these (non-FIR version) but haven't tried it yet. Manual says you can select AES for inputs and outputs.

 

[theAnonymous1]

This has a 2x8 AES option, 96/196kHz, has limited FIR...

https://www.aliexpress.us/item/3256806414564436.html?

Another AES input card can be added to make it 4x8.

You can play with the software without a device attached if you want to try it out...

https://www.diyaudio.com/community/...89-4in-6out-pcm1798-board.339777/post-7688472

 

[olsond3]

hi olsond3,
nice ideas too !

but in the digital chain,
as we get a signal from USB (often), the convertion to AES is better than to spdif, because less jitter-sensitive (to get clear : AES is less jitter-sensitive to spdif)

SPDIF and AES EBU is the exact same signaling. They are just different voltage levels. How can one be less sensitive to jitter? That makes no sense to me. The conversion from one to the other is done with a transformer or level converter.

 

[MrKlinky]

I checked the Behringer in more detail and turns out, it does not even have digital AES outputs. So since it is not 4 way and does not have digital outputs, so please do not suggest devices that have nothing do with this topic, thanks.

My apologies, I did not understand that you wanted AES including the amplifier inputs!

 

[phile1]

SPDIF and AES EBU is the exact same signaling. They are just different voltage levels. How can one be less sensitive to jitter? That makes no sense to me. The conversion from one to the other is done with a transformer or level converter.

Hi olsond3,
thanks for your reply, you may be right...

but like many guy, I got a info a while ago, and I stick on it Thus, for me, AES/EBU is more reliable & less jitter sensitive than spdif.
I have to find the info that confirms my point , but if I remember "well", it's related to the clock recovery : this process is not the same when a device receive a spdif signal vs a AES-EBU signal.

 

[olsond3]

phile1 Maybe have a look at this. https://www.sweetwater.com/store/detail/CDL313--hosa-cdl-313. It is just a signal level conversion to go between the two. There's no clock recovery in that box.