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I have the audyssey mobile app. The following pertain to that.
My set up is as follows:
LCR: JBL Studio 590
Surrounds: JBL Studio 580
Rear surrounds: Martin Logan MLT2
Subwoofer: Klipsch R112SW
Receiver: Denon x4400h
I ran audyssey using only the first three measurements as I feel that is enough clustering in my space. I have given below the room correction results.
The DB levels are as follows. For the sub I bumped it from -9.0 db to -5.0 db.
I have the midrange compensation turned off. I will be making a few adjustments later like limiting the frequency range to 300hz for all channels and putting in a room curve. I have not done it in the illustration below so that I don't see the jaggedness in the curve. So for this illustration all channels have a frequency range upto 20000hz.
I have a couple of questions.
1. Why does the subwoofer target corrected curve show two dips at 50hz and 70hz? I set the crossover at 80hz. So I am less concerned about any nulls beyond that. However the two nulls under 80hz is concerning me. I know that the target curve is more of a prediction rather than actual measurements but does this mean audyssey is telling me that there is something wrong in my set up due to which it is unable to do a flat response at 50hz and 70hz? Due to some constraints I am unable to either change the sub location or seating. Is there going to be any negative impact due to this and can I live with this or are there any easy corrections?
2. Why are the rear surrounds starting so much deep in the negative db territory and coming up? I realize the rear surrounds are bookshelf Martin Logan MLT2 speakers that don't match the JBLs in LCR and surrounds. But they seem to have a steep rolloff at the lower end. Do I need to be concerned about these or are there other adjustments I need to make like changing the crossover for those specific rear surrounds to say 140hz or so?
3. Do the other channels look ok?
My set up is as follows:
LCR: JBL Studio 590
Surrounds: JBL Studio 580
Rear surrounds: Martin Logan MLT2
Subwoofer: Klipsch R112SW
Receiver: Denon x4400h
I ran audyssey using only the first three measurements as I feel that is enough clustering in my space. I have given below the room correction results.
The DB levels are as follows. For the sub I bumped it from -9.0 db to -5.0 db.
I have the midrange compensation turned off. I will be making a few adjustments later like limiting the frequency range to 300hz for all channels and putting in a room curve. I have not done it in the illustration below so that I don't see the jaggedness in the curve. So for this illustration all channels have a frequency range upto 20000hz.
I have a couple of questions.
1. Why does the subwoofer target corrected curve show two dips at 50hz and 70hz? I set the crossover at 80hz. So I am less concerned about any nulls beyond that. However the two nulls under 80hz is concerning me. I know that the target curve is more of a prediction rather than actual measurements but does this mean audyssey is telling me that there is something wrong in my set up due to which it is unable to do a flat response at 50hz and 70hz? Due to some constraints I am unable to either change the sub location or seating. Is there going to be any negative impact due to this and can I live with this or are there any easy corrections?
2. Why are the rear surrounds starting so much deep in the negative db territory and coming up? I realize the rear surrounds are bookshelf Martin Logan MLT2 speakers that don't match the JBLs in LCR and surrounds. But they seem to have a steep rolloff at the lower end. Do I need to be concerned about these or are there other adjustments I need to make like changing the crossover for those specific rear surrounds to say 140hz or so?
3. Do the other channels look ok?