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Genelec GLM software and the 7350A Subwoofer

Tangband

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Even if GLM fixes integration in a good way between sub and main loudspeakers, only one subwoofer, no matter how good, will have both positive and negative influence on the sound. You always need two subwoofers in a stereo setup if it will be considered an all positive upgrade.

One other thing about subwoofers, - the soundquality from the two subs must be better than the bass from the main loudspeaker, othervise the sound will be worse with subs than without subs.
This sounds and also is very logical, but you often see people using bad subwoofers with good quality main loudspeakers.

One must also place the main speakers correctly in the room, in the way that the bass will be considered good even without subwoofers. Wrongly placed main loudspeakers can never play bass in a good way, * even if its combined with the worlds best subwoofers.

*The perceived sound from a bass guitar has a frequency response of about 40-8000 kHz. The whole spectra must be correct in time and amplitude. The perceived sound from a bass guitar is very dependent of the sound quality from the main loudspeakers.
 
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lappy

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I'm using 2x 8351A + 2x 7350 at 73dB usually at 1m distance in a concrete room.

GLM won't fix deep nulls (unless with W371A) but it can bring down the excessive frequencies & gives a cleaner bass especially with GLM 4.1.x onwards.
With 2 subs you can have better frequencies (if the sub able to cover each other nulls in your room) & wider low frequency envelopment with the right content.

this is my 7350 fr
View attachment 194114

add in 7360 which I borrowed from my dealer to test with GLM 3.x for your reference. I picked 7350 because it is good enough for my needs.
View attachment 194117

I would recommend if possible you borrow a GLM kit from ur dealer to play around 1st.
You would need to set the Left sub to channel A & Right sub to channel B to stereo sub with digital AES input.
View attachment 194115

GLM will auto calibrate & auto phase.
You can do manual adjustment later which I think you can study from the GLM manual.
View attachment 194116

Eng
I don't get it. I got my second 7350 today and I expected to see the UI shown above where mono or stereo can be selected. Does not look like that at all. Where is that screenshot coming from??
 

lappy

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I don't get it. I got my second 7350 today and I expected to see the UI shown above where mono or stereo can be selected. Does not look like that at all. Where is that screenshot coming from??
Found it, not obvious at all. I'm growing sick of the GLM UX, not that great at all...almost bordering on amateur hour.
 

lappy

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If you click on a subwoofer during the setup process, the UI appears. Crazy.
Also, must use digital input.
I see theres also a "LFE Channel" checkbox, do you know if that should be checked when using 2 subs in stereo?
LFE is a special channel in multichannel sound containing LF info. Not applicable when running two channel audio.
 

ethanchiu10

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Also, must use digital input.

LFE is a special channel in multichannel sound containing LF info. Not applicable when running two channel audio.

So even though I'm using my stereo to watch movies, I should keep that off?

And my plan is to get 3x 8341A + 2x 8331A + 2x 7350A, in that case, how should it be setup in GLM?
 

lvy

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I don't get it. I got my second 7350 today and I expected to see the UI shown above where mono or stereo can be selected. Does not look like that at all. Where is that screenshot coming from??
I'm late to reply... Glad you found it...
Write it down here for others to refer.

GLM 4 Stereo Subs Configuration
Group Preset > Add or Edit
Click on the left and right sub - A is left and B is right
 

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lappy

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I'm late to reply... Glad you found it...
Write it down here for others to refer.

GLM 4 Stereo Subs Configuration
Group Preset > Add
Click on the left and right sub - A is left and B is right
Note that this is only available during the setup "wizard", can't remember which step. After the group has been created it is nowhere to be found. So I assume a lot of people have no idea that they can choose between running the subs in stereo or mono if they don't click on the sub during the setup by luck (they will get mono by default).
 
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lappy

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Set up a second 7350 with my 8330a and I am amazed by the difference to a single 7350.
 
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mkt

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