Genelec 8341 calibration

[ttman]

I am using the small setup layout in GLM to calibrate three 8341 speakers, placing them in the Left, Center, and Right positions in the grid. After the calibration, I noticed that the GLM software recognizes both the Left and Center speakers as Digital-A, while the Right speaker is identified as Digital-B. I tried various layouts of the GLM network, but each configuration still recognizes the speakers in the same way as mentioned earlier.

My setup consists of coaxial output from the Wiim Ultra through RCA to BNC, then into a 75 to 110-ohm converter, and finally, an AES cable connects to the Left speaker, daisy-chaining to the Center speaker and then to the Right speaker.

Do you have any ideas why GLM recognizes only Digital-A and Digital-B, and not the Center speaker separately? I have verified that audio is coming out of all three speakers. Additionally, I am not using a subwoofer. Is it a good idea to use three speakers without a sub?

 

[ppierre]

Maybe left and center speakers play the same signal, the left channel?
And right speaker play right channel.

I haven't Genelec hardware, but I'm fairly sure the the Wiim output only two channels on SPDIF. And you set on the speaker if it takes the left or right signal.

I have similar setup with 3 Neumann kh 150 connected in digital. But I use two SPDIF output from my pre-amp (Trinnov) : one daisy chained for left and right. The second SPDIF for the center (set to left on the speaker).

 

[LTig]

AFAIK SPDIF supports only 2 channels, so with 3 speakers the center speaker needs to be fed separately. Not possible with a Wiim, you need an AVP.

A sub may offer more sound quality (full range) than a center speaker (real center vs. phantom center), depends on the location of speakers and listener.

 

[TheKoC]

Easiest way is to use an USB-Audiointerface with 4 balanced line outs, like the Motu M4. That's analog balanced out though, which will make no audible difference.
Interfaces with multichannel digital AES out do exist, but are quite expensive.

 

[Kyle_PL]

... if You want center, You will need at least 3 channels. This is much more complicated than 2.0/2.1/2.2. Forget about it (3.0/3.1).