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2.1 AES connection order

pogo, modified 1 Year ago.

2.1 AES connection order

Youngling Posts: 12 Join Date: 3/15/21 Recent Posts

Hello! I finally managed to save up enough to realize a long dream I had of owning a Genelec system. My 8330 and 7350 set will be arriving soon :D
I have a question regarding the AES connections.

I plan on using an S/PDIF to AES cable (short, 1m) to connect my interface to the left speaker, then regular 110ohm XLR from L to R, and from R to sub.

However, in the operating manual for GLM4, I see that the recommended signal path is interface -> sub -> monitors.

Is it an issue if the signal path is reversed, given that the sub probably doesn't do crossover stuff on the AES output, and instead everything is done inside GLM?

Thanks a lot!! 

janne-koo, modified 1 Year ago.

RE: 2.1 AES connection order

Padawan Posts: 73 Join Date: 10/26/15 Recent Posts

Congratulations!

No worries, it'll just work. I've probably had mine (same set) connected in all possible ways. If you want to feel better, or have been infected by a slight case of perfectionism, use an impedance converter (like Neutrik NADITBNC-M) near the source, but it certainly shouldn't be necessary for short runs.

Analog routing is easiest via the sub (but the 7350 doesn't filter the analog outs either), so if running both inputs, it just makes some sense to run all wires via the same physical path - probably all there is to the recommendation.

pogo, modified 1 Year ago.

RE: 2.1 AES connection order

Youngling Posts: 12 Join Date: 3/15/21 Recent Posts

Alright, thank you very much!

I'm only going to be running 1m or even 0.5m of S/PDIF -> AES/EBU cable, so i really hope the impedance mismatch isn't going to matter that much.
 

Running balanced analog cables for L and R to and from the sub is going to be a massive pain, I'm really glad I'll be able to go digital. Even ordered the little volume knob thingy :D

janne-koo, modified 1 Year ago.

RE: 2.1 AES connection order

Padawan Posts: 73 Join Date: 10/26/15 Recent Posts

Hope you got the 8330's as a 2x8330+GLM kit (best value), you'll need the GLM brain and network wired as a permanent part of your system. The kit includes one of these much loved massive little wired volume knobs - especially with digital connections it's more a necessity than an option; Keep digital sources at 100% and control volume via the GLM network (software not required, I'd recommend using some USB charger to power the brain after everything is "final").

About that 75 ohm S/PDIF run length: It's the length of the whole string that counts, not just the first connection; That said, it'll still probably just work.

alexaben, modified 1 Year ago.

RE: 2.1 AES connection order

Youngling Posts: 0 Join Date: 3/11/21 Recent Posts

Congrats! 

No concerns, it'll simply work. I've presumably had mine (same set) associated taking all things together potential ways. In the event that you need to feel much improved, or have been tainted by a slight instance of compulsiveness, utilize an impedance converter (like Neutrik NADITBNC-M) close to the source, yet it unquestionably shouldn't be important for short runs.

sometimes its possible it may not be work because technologies can be troubleshoot in various cases

pogo, modified 1 Year ago.

RE: 2.1 AES connection order

Youngling Posts: 12 Join Date: 3/15/21 Recent Posts

Wait, I thought the speakers reamped the AES/EBU signal when it passes through one! Given i'll probably have to run the sub with a 10/15m cable, perhaps that impedance matcher isn't such a bad idea after all...

Just got the volume knob. It's a shame that it looks so plasticky on the Genelec website, because damn i could murder somebody with its weight