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Thread: JBL Master Reference Monitor

  1. #1276
    Senior Member Valentin's Avatar
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    Quote Originally Posted by Mctwins View Post
    Hallo!

    I have downloaded this new tunings for the M2 into my Crown DCi. But, why is it lockt? You can't see the settings. Is there any particular reason for this. It is even lockt for the Cinema Screen Arrays settings, I could see this settings before without any problem.

    Can you see the settings for your 7 series?

    Have tried many differen't options.

    You are right, Great amp
    May be one reason is that a lot of people see Eq as a non quality process
    they see it as fixing a problem not as part of of the solution
    not knowing what has been done can help ease their mind

    Another reason may be people trying too now better than the design team and modifying the preset screwing up a well thought product

    and last selling Crown amps with the intended speakers

  2. #1277
    Senior Member Mctwins's Avatar
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    Quote Originally Posted by Valentin View Post
    May be one reason is that a lot of people see Eq as a non quality process
    they see it as fixing a problem not as part of of the solution
    not knowing what has been done can help ease their mind

    Another reason may be people trying too now better than the design team and modifying the preset screwing up a well thought product

    and last selling Crown amps with the intended speakers
    Hallo!

    I agree, when using a setting for a particular speaker coming from JBL(design team) then use it as it is. No point in fidling with some other settings.

    I wonder why the limiters is not locked, is is true that for HF it is 100 volts setting in Thermal, RMS and PEAK Threshold voltage. For LF it is 128 volt Peak threshold. Can this be correct?

    I haven't checkt how it looks like in 7 series

  3. #1278
    Senior Member Mctwins's Avatar
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    Quote Originally Posted by Mctwins View Post
    Hallo!

    I agree, when using a setting for a particular speaker coming from JBL(design team) then use it as it is. No point in fidling with some other settings.

    I wonder why the limiters is not locked, is is true that for HF it is 100 volts setting in Thermal, RMS and PEAK Threshold voltage. For LF it is 128 volt Peak threshold. Can this be correct?

    I haven't checkt how it looks like in 7 series
    Hallo!

    Seems to be more correct if I am using the 1200Watts into 8 ohms calculation

  4. #1279
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    Quote Originally Posted by Mctwins View Post
    But, why is it lockt? You can't see the settings.
    I unlocked it for anyone who wants to see the groovy graphs.

    For JBL M2 LF HP27:
    Object(7.37.1): Ch1 IIR Crossover Filters
    Highpass Enable = 0 Highpass Frequency = 20Hz Highpass Type = Linkwitz-Riley 24dB/oct Lowpass Enable = 1 Lowpass Frequency = 790Hz Lowpass Type = Linkwitz-Riley 36dB/oct
    Object(8.36.1): Ch1 Speaker EQ Filters
    Enable 1 = 1 Frequency 1 = 135Hz Q 1 = 4 Slope 1 = 5.5 Gain 1 = -8dB Type 1 = HP Shelf EQ
    Enable 2 = 1 Frequency 2 = 254Hz Q 2 = 10 Slope 2 = 6 Gain 2 = 2.6dB Type 2 = Parametric EQ
    Enable 3 = 1 Frequency 3 = 340Hz Q 3 = 3 Slope 3 = 6 Gain 3 = -0.5dB Type 3 = Parametric EQ
    Enable 4 = 1 Frequency 4 = 197.5Hz Q 4 = 6.31 Slope 4 = 6 Gain 4 = 0.9dB Type 4 = Parametric EQ
    Enable 5 = 1 Frequency 5 = 27Hz Q 5 = 2 Slope 5 = 6 Gain 5 = 0dB Type 5 = HP EQ
    Enable 6 = 1 Frequency 6 = 58Hz Q 6 = 1.8 Slope 6 = 6 Gain 6 = -1.5dB Type 6 = Parametric EQ
    Enable 7 = 1 Frequency 7 = 236Hz Q 7 = 6.56 Slope 7 = 6 Gain 7 = 0.4dB Type 7 = Parametric EQ
    Enable 8 = 1 Frequency 8 = 400Hz Q 8 = 7.43 Slope 8 = 6 Gain 8 = -0.5dB Type 8 = Parametric EQ
    Bypass 1 Thru 8 = 0
    Object(9.21.1): Ch1 Speaker Delay
    Coarse = 0s Fine = 270us Coarse Bypass = 0 Fine Bypass = 0
    Attached Images Attached Images    

  5. #1280
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    For JBL M2 LF NoHP

    Object(7.37.1): Ch1 IIR Crossover Filters
    Highpass Enable = 0 Highpass Frequency = 20Hz Highpass Type = Linkwitz-Riley 24dB/oct Lowpass Enable = 1 Lowpass Frequency = 790Hz Lowpass Type = Linkwitz-Riley 36dB/oct
    Object(8.36.1): Ch1 Speaker EQ Filters
    Enable 1 = 1 Frequency 1 = 135Hz Q 1 = 4 Slope 1 = 5.5 Gain 1 = -8dB Type 1 = HP Shelf EQ
    Enable 2 = 1 Frequency 2 = 254Hz Q 2 = 10 Slope 2 = 6 Gain 2 = 2.6dB Type 2 = Parametric EQ
    Enable 3 = 1 Frequency 3 = 340Hz Q 3 = 3 Slope 3 = 6 Gain 3 = -0.5dB Type 3 = Parametric EQ
    Enable 4 = 1 Frequency 4 = 197.5Hz Q 4 = 6.31 Slope 4 = 6 Gain 4 = 0.9dB Type 4 = Parametric EQ
    Enable 5 = 1 Frequency 5 = 21.5Hz Q 5 = 1.77 Slope 5 = 6 Gain 5 = 4.7dB Type 5 = Parametric EQ
    Enable 6 = 1 Frequency 6 = 61.5Hz Q 6 = 5.32 Slope 6 = 6 Gain 6 = -0.8dB Type 6 = Parametric EQ
    Enable 7 = 1 Frequency 7 = 236Hz Q 7 = 6.56 Slope 7 = 6 Gain 7 = 0.4dB Type 7 = Parametric EQ
    Enable 8 = 1 Frequency 8 = 400Hz Q 8 = 7.43 Slope 8 = 6 Gain 8 = -0.5dB Type 8 = Parametric EQ
    Bypass 1 Thru 8 = 0
    Object(9.21.1): Ch1 Speaker Delay
    Coarse = 0s Fine = 270us Coarse Bypass = 0 Fine Bypass = 0
    Attached Images Attached Images    

  6. #1281
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    For JBL M2 HF:

    Object(7.37.1): Ch1 IIR Crossover Filters
    Highpass Enable = 1 Highpass Frequency = 782Hz Highpass Type = Butterworth 6dB/oct Lowpass Enable = 0 Lowpass Frequency = 20kHz Lowpass Type = Linkwitz-Riley 24dB/oct
    Object(8.36.1): Ch1 Speaker EQ Filters
    Enable 1 = 1 Frequency 1 = 7.1kHz Q 1 = 4 Slope 1 = 11 Gain 1 = 5dB Type 1 = HP Shelf EQ
    Enable 2 = 1 Frequency 2 = 760Hz Q 2 = 2.5 Slope 2 = 6 Gain 2 = -4.3dB Type 2 = Parametric EQ
    Enable 3 = 1 Frequency 3 = 3.1kHz Q 3 = 3.5 Slope 3 = 6 Gain 3 = -5.6dB Type 3 = Parametric EQ
    Enable 4 = 1 Frequency 4 = 1kHz Q 4 = 3 Slope 4 = 6 Gain 4 = 1.5dB Type 4 = Parametric EQ
    Enable 5 = 1 Frequency 5 = 4kHz Q 5 = 6.56 Slope 5 = 6 Gain 5 = -1dB Type 5 = Parametric EQ
    Enable 6 = 1 Frequency 6 = 9.37kHz Q 6 = 10.16 Slope 6 = 6 Gain 6 = 2dB Type 6 = Parametric EQ
    Enable 7 = 1 Frequency 7 = 11.2kHz Q 7 = 13.25 Slope 7 = 6 Gain 7 = 2dB Type 7 = Parametric EQ
    Enable 8 = 1 Frequency 8 = 16kHz Q 8 = 5.26 Slope 8 = 6 Gain 8 = 2dB Type 8 = Parametric EQ
    Bypass 1 Thru 8 = 0

    NOTE that the attached file isn't really a zip file, I just had to put that extension on it to upload it. Remove the .zip extension and then load it into AA.
    Attached Images Attached Images   
    Attached Files Attached Files

  7. #1282
    Senior Member pos's Avatar
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    There are also some EQs on the inputs, common to LF and HF:

    Name:  input.PNG
Views: 1069
Size:  11.7 KB

  8. #1283
    Senior Member pos's Avatar
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    Thank you 4313B for posting the EQ settings for the high-passed LF version!
    I will update my google doc with these.

    Here is a comparison between the "normal" version in red, and the high-passed one in blue:

    Name:  M2 lows alt.PNG
Views: 1077
Size:  33.0 KB

  9. #1284
    Senior Member srm51555's Avatar
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    Yes, thank you for both

  10. #1285
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    Quote Originally Posted by pos View Post
    Thank you 4313B for posting the EQ settings for the high-passed LF version!I will update my google doc with these.Here is a comparison between the "normal" version in red, and the high-passed one in blue:Name:  M2 lows alt.PNG
Views: 1077
Size:  33.0 KB
    What kind of electrical/dsp highpass-slope is it corresponding to? butterworth 18dB/oct?

    Why is there a boost 25-50hz in the highpassed one? Is that the purpose of the high-passed settings, to boost bass output a bit?

  11. #1286
    Senior Member Mctwins's Avatar
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    4313B ...... Thanks, I will try that about .zip extention, not tonight

    Is there any particular reason that you chose the DCi 4/300N?

    Manual say's Recommended amplifier power: 1200Watts per channel into 8 ohm.

  12. #1287
    Senior Member pos's Avatar
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    Quote Originally Posted by bubbleboy76 View Post
    What kind of electrical/dsp highpass-slope is it corresponding to? butterworth 18dB/oct?

    Why is there a boost 25-50hz in the highpassed one? Is that the purpose of the high-passed settings, to boost bass output a bit?
    It is a 12dB/oct.
    I don't know why they boosted that range in the high-passed version, maybe some sort of psychoacoustic compensation for what is lost down low, ā la Bose

  13. #1288
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    Quote Originally Posted by Mctwins View Post
    4313B ......Is there any particular reason that you chose the DCi 4/300N?
    I picked it to use while I was figuring out how to unlock the settings.

    Quote Originally Posted by bubbleboy76 View Post
    Why is there a boost 25-50hz in the highpassed one? Is that the purpose of the high-passed settings, to boost bass output a bit?
    The filter is centered at the tuning frequency of the enclosure and rolls off below that frequency to protect the 2216Nd. I suspect that JBL is simply trying to add a bit of protection to the 2216Nd below Fb in installed applications.

    I will admit that I kind of scratched my head at the original file way back when we first looked at it several years ago: Enable 5 = 1 Frequency 5 = 21.5Hz Q 5 = 1.77 Slope 5 = 6 Gain 5 = 4.7dB Type 5 = Parametric EQ
    That is exactly why I originally thought the enclosure Fb was 21.5 Hz. "Normal" people usually don't apply any boost below Fb

  14. #1289
    Senior Member pos's Avatar
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    Quote Originally Posted by 4313B View Post
    I picked it to use while I was figuring out how to unlock the settings.

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