Main L/R Eq

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This topic contains 13 replies, has 3 voices, and was last updated by Profile photo of Tobi Tobi 1 year ago.

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  • #113006
    Profile photo of tutu13
    tutu13
    Participant

    Hello everyone,

    A slight EQ correction is needed on the left side of my FOH,
    other than sacrificing two Matrixes, is there a way?

    Thanks

    #113008
    Profile photo of Tobi
    Tobi
    Participant

    Use only one Matrix for the left Channel.

    #113009
    Profile photo of Brian
    Brian
    Participant

    I’m sure the “issue” is that you have to select an even number of matrixes. So unless the OP has a need for another mono matrix, you’ll end up having to burn 2 busses.

    Allen and Heath – It would be great if you could select an odd number of mono busses across the total buss types. Right now you can’t. For example, if you need 3 mono aux and 3 mono groups, you end up having to use 8 busses instead of just 6. It’s silly IMHO and a major design flaw.

    #113010
    Profile photo of tutu13
    tutu13
    Participant

    OK, my SQ is new, MainLR Pan and Matrix Pan are deactivated (probably to avoid accidental modification), which menu should I go through to display it?

    #113013
    Profile photo of Tobi
    Tobi
    Participant

    MainLR and Matrix dont have Pan I think? Is it needed? My suggestion was: Use one Stereo-Matrix and do the “left-EQ-thing” there. Then patch left speaker to Matrix-Left, and the Right-Speaker to Main-Right. Then you only need one Matrix. And no panning.

    Best Regards.

    #113014
    Profile photo of Tobi
    Tobi
    Participant

    @brian: I have no clue what you mean by “even/uneven number of matrixes”. Could you explain a bit more? As far as I know, we have 3 Matrixes, which is uneven??

    #113015
    Profile photo of tutu13
    tutu13
    Participant

    Maybe make it simpler:
    Can Powerful GEQs (paid) delink their stereo?

    #113017
    Profile photo of Tobi
    Tobi
    Participant

    Dont think so. Or ist there a link Button in the ui?

    #113027
    Profile photo of tutu13
    tutu13
    Participant

    1-Will going through a Matrix for the left side burn two XLR outputs? (2 Main+ 2 Matrix= 4 outs)?

    2-Is this allow me to equalize my general L/R while keeping the small correction on the left, but isn’t two digital equalizers on top of each other too much?
    I’m thinking especially of the phase modification (is there a Linear Phased among the GEQs?),
    wouldn’t the sound be better with only my Klark Teknik 2×32 Band at the output?

    #113028
    Profile photo of Tobi
    Tobi
    Participant

    Hi tutu,

    1 – I am sorry — do you have an SQ available? In the IO-Patch you decide, which signal is send to which physical output. So no, you “burn” only 2 outputs.

    2 – In general you send a “copy” of the MainLR to the Matrix. So every EQ or whatever you do on MainLR is on the Matrix, too. But you can use additional processing on the Matrix.

    You find more information about the GEQ’s here: https://www.allen-heath.com/sq-series/sq-add-on-processing/sq-geq/

    If you have external gear you want to use, because it sounds better of phasing stuff, you should check that worth yourself… I don’t have a Klark Teknik 2×32 at hand…

    Best Regards,
    Tobias

    #113029
    Profile photo of tutu13
    tutu13
    Participant

    >do you have an SQ available? In the IO-Patch you decide, which signal is send to which physical output. So no, you “burn” only 2 outputs.

    .. but yeah of course !!! (I’ve a SQ-5)

    Thanks for the link, GEQ’s sound better than the basic graphic EQ?

    #113033
    Profile photo of Tobi
    Tobi
    Participant

    For me I dont have problems. Neither EQ nor GEQ.

    #113034
    Profile photo of Brian
    Brian
    Participant

    @brian: I have no clue what you mean by “even/uneven number of matrixes”. Could you explain a bit more? As far as I know, we have 3 Matrixes, which is uneven??

    Well first off, I didn’t pay attention to the fact that this was in the SQ forum (I typically view new posts only). That’s my fault. Although my experience is mainly related to Avantis and DLive systems, it is semi-relevant to the SQ series as well. With the Avantis and DLive systems which allows user selected buss types, you cannot have a odd number of busses chosen for any mix type. Look at my example again….. if you only need 3 mono groups and 3 mono auxes, the system actually requires that you use 4 mono busses in each buss type because it won’t allow an “odd” number of mono busses for any given buss type. In this example, the system will require you use 4 mono group busses and 4 mono aux busses. This is the case even when your total mono busses adds up to an even number over all as in my example: 3+3 is only 6 busses (an even number), but the system requires you use 4+4 using 8 busses with 2 mono busses simply being wasted.

    With the SQ series, it is semi-related because you cannot split a “stereo” matrix into two mono matrix. So while you can have three mono matrixes, it actually uses all three stereo matrix. You cannot have 6 mono matrix for example even though there are technically 6 unique audio paths being used in a 3 stereo matrix setup.

    #113035
    Profile photo of Tobi
    Tobi
    Participant

    Ahhh… Now it makes sense…

    Best Regards!

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