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  1. C

    Better Amp better soundstage?

    Yeah agreed, although reflections I believe do matter depending on their time of arrival (localisation effect?). But remember that we are not just talking about an amplifier here, we are talking about a pre-amp as well. phantom center is not at the center in an assymetric room. reflections may...
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    Better Amp better soundstage?

    Yeah could be that, I guess even time of day or how fatigue could influence our perception. I guess we would need more info on how exactly he did the A/B comparison.
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    Better Amp better soundstage?

    Yeah but maybe we are asking the wrong question? Maybe we should ask, what could actually be influencing their perception that could mistake it for a difference in soundstage? Could electronics influence the phase of an audio signal that could affect soundstage? Not an expert just wondering
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    Better Amp better soundstage?

    Thanks for the comment. From the video to me there is a big difference between the rectangles (not only a wider but also a taller soundstage). The spl mismatching could indeed be one explanation I would think. Some differences between sounds are more prominent I think, for example the presence...
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    Better Amp better soundstage?

    Hello all, I came across this video review of the denon 3800 avr from Andrew Robinson, who claims that with all being equal (speakers, placement, room correction off etc etc), there was a significant difference in stereo soundstage between this avr and others such as the onkyo rz50. Check...
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    EQ Limit for Cutting - Subwoofer FR

    @OCA, I am only applying a handful of filters per channel <300Hz and applying psychoacoustic smoothing to verify, but the with the EVo the FR @ psychoacoustic smoothing had a significant dip. In any case, with all things being equal, and my speakers having a good directivity and a good off-axis...
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    EQ Limit for Cutting - Subwoofer FR

    Yes actually I have the meq-x pc app. There are also spinorama data that you can use to correct the respince above the schroeder frewuency. So you see why I chose the manual way?:) Every autocorrection system has limitations, some more serious than others.
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    EQ Limit for Cutting - Subwoofer FR

    Yes you can adjust a few things but lets not forget that by default audyssey corrects full range which in most cases is not desired, it can really mess up a good speaker. No my rel sub does not have eq options unfortunstely and I think a lot of sub brands are the same
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    EQ Limit for Cutting - Subwoofer FR

    Sure basically audyssey gets many things wrong, such as the cross over and the speaker type (small vs large). Audyssey has no way of confirming the actual parameters it sets, it is basically a shot in the dark. But more importantly, it destroys my low end responce. During initial spl matching...
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    EQ Limit for Cutting - Subwoofer FR

    Its all a bit confusing to me because from what I understand the choice of slope for the high pass filter has to do with how much the phase changes, and a 12db/octave that the avrs are using correspond to 180 degrees phase shift. The idea is that this will be combined with the natural roll off...
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    EQ Limit for Cutting - Subwoofer FR

    I did but it resulted in dips in the bass region (e.g. 70Hz) and overall it does not seem like a good response to me (see attached). Also, the script determined that I should reverse my sub's polarity and use LFE+Main instead of LFE. I had the same issue with the response (dips in XO region or...
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    EQ Limit for Cutting - Subwoofer FR

    I could choose a higher cross over but then I think the issue will just move to a higher frequency. Couldn't I just apply a broad EQ filter (or shelf filter) in the low frequencies of the front channels to further diminish the effect?
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    EQ Limit for Cutting - Subwoofer FR

    it should but its not:) because HPF is still allowing the front channels to contribute to some degree. I will give it another try though. My approach is to measure all channels and subs full range without any cross-overs (or very high) and EQ them "flat" (below schroeder) using cuts only for...
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    EQ Limit for Cutting - Subwoofer FR

    Denon 3700h denon 3700h
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    EQ Limit for Cutting - Subwoofer FR

    Yeah I get it I always keep psychoacoustic smoothing handy i order to preserve my sanity:) However, what I dont get is that below the crossover frequency you would want to only have the sub playing i order to have a consistent reposnce. With the 12 db slope of the crossover I find that the main...
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    EQ Limit for Cutting - Subwoofer FR

    Hm but the lfe-10db responce vs the redirected bass responce from the sub with a high cross over should be the same right? Is there a benefit for measuring specifically the lfe channel?
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    EQ Limit for Cutting - Subwoofer FR

    Uhm yeah good point I got confused thinking that when playing both channels only affects fs above cross over point….. My last question would be….each channel has a different responce below say 80hz and even if you eq the peaks for each channel seperately and apply the cross over slope at 80hz...
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    EQ Limit for Cutting - Subwoofer FR

    Hm but I measuring using rew sweeps for front channels but having channels disconnected in order to get the sub only (using a high avr cross over). Isnt that ok?
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    EQ Limit for Cutting - Subwoofer FR

    The subwoofer is a single channel but the l/r when playing together would be summed when in phase at least below the schroeder. So the responce with sub+R would be different than sub+R+L right? The slipe of the house curve would be different at thr bass region above xo point right? Am I making...
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    EQ Limit for Cutting - Subwoofer FR

    Thank you @staticV3 for your feedback! One more thing if I may, suppose you are after a 6db harman curve, would you evaluate this using both L plus R playing or with seperate measurements. The spl difference of the sub between both channels vs seperate channels is obviously different after...
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