Dips like that are hard to equalize in a passive design. You have to bring down the level of everything else. Sacrificing sensitivity is generally not worth it.
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- Thread starter Ron Texas
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Dips like that are hard to equalize in a passive design. You have to bring down the level of everything else. Sacrificing sensitivity is generally not worth it.
The dip is a measurement artefact. A bit lazy to link the source, but the NRC anechoic chamber is anechoic only down to 80Hz. They got access to someone else's anechoic chamber that was good to 20Hz and derived a compensation curve/algorithm that compensates from 20-80Hz. However, this compensation very frequently goes wonky in practice in the measurements the NRC makes for Soundstage. It is not reflective of the actual performance of the speaker.
watchnerd
Grand Contributor
KEF speakers always remind me of Communion wafers glued on a stick.
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maty
Major Contributor
by Hans Wetzel to me, about one dip:
https://www.soundstageaccess.com/index.php/feedback/951-kef-q750-not-so-neutral
https://www.soundstageaccess.com/index.php/feedback/951-kef-q750-not-so-neutral
maty
Major Contributor
If the source is a computer, with quality software like PEQ from JRiver MC, we can adjust the dip without damaging other parameters, provided it is not a very aggressive equalization.
[IMG, link] https://www.audiosciencereview.com/forum/index.php?attachments/jrmc-dsp-peq-kef-q100-png.32987/
BTW, now that nobody reads us: I usually listen to my little ones in the near field, hence I have always complained about lack of depth in the sound. The other day, doing tests with the different functions that the JRMC PEQ incorporates I was fiddling with the delay. In the end I left it at 5 ms for both and the sound is better, with more depth.
Only activated with music. With video the voices are out of sync!
[IMG, link] https://www.audiosciencereview.com/forum/index.php?attachments/jrmc-dsp-peq-kef-q100-png.32987/
BTW, now that nobody reads us: I usually listen to my little ones in the near field, hence I have always complained about lack of depth in the sound. The other day, doing tests with the different functions that the JRMC PEQ incorporates I was fiddling with the delay. In the end I left it at 5 ms for both and the sound is better, with more depth.
Only activated with music. With video the voices are out of sync!
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Canton seems to be online-only in the US, so if audition is a consideration, yeah they're out. The pricing on sale (links in my original post) is very good, they go on sale much more than Revels do, so there's that.
maty
Major Contributor
Let me suggest, also, looking at the Bryston speakers.
Where are you located. Maybe I can accommodate an audition
Are your saying that delaying the sound to all drivers equally sounds better than no delay?
You could always look at Axiom who builds Bryston’s speakers.
maty
Major Contributor
First I tried, of course, with a single channel and was alternating. When I decide to try with both the sound improved! At first too echo, 50 ms. I went progressively down and stayed with the 5 ms. It sounds better in near and far field too.
340 m/s and 5 ms -> 1.7 m
PS: playing Peter Paul & Mary from foobar2000 with DSD : KS : JRVAD Wave thanks to JRiver MC WDM driver.
Why? Register me. Maybe it is JRMC thing. For example if I set the resample option, even if I do not use it for the music I am listening to, the sound is worse. And JRMC SoX is worse than the one implemented in other soft players and also does not allow configuration.
340 m/s and 5 ms -> 1.7 m
PS: playing Peter Paul & Mary from foobar2000 with DSD : KS : JRVAD Wave thanks to JRiver MC WDM driver.
Why? Register me. Maybe it is JRMC thing. For example if I set the resample option, even if I do not use it for the music I am listening to, the sound is worse. And JRMC SoX is worse than the one implemented in other soft players and also does not allow configuration.
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Ron Texas
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If the source is a computer, with quality software like PEQ from JRiver MC, we can adjust the dip without damaging other parameters, provided it is not a very aggressive equalization.
[IMG, link] https://www.audiosciencereview.com/forum/index.php?attachments/jrmc-dsp-peq-kef-q100-png.32987/
BTW, now that nobody reads us: I usually listen to my little ones in the near field, hence I have always complained about lack of depth in the sound. The other day, doing tests with the different functions that the JRMC PEQ incorporates I was fiddling with the delay. In the end I left it at 5 ms for both and the sound is better, with more depth.
Only activated with music. With video the voices are out of sync!
Even if this is off topic, I find time delay to be interesting. Is it possible to apply the delay to a particular frequency (over 100hz) to time align a sub with the mains or does the sub have to be on a different channel? It wouldn't make sense to delay everything.
maty
Major Contributor
With JRiver MC nope. At least from the PEQ (btw, it works with minimum phase as the old analog).
I don’t think anything <$4000 beats the Ascend Acoustics Sierra Tower with RAAL upgrade (~$3000 in basic finishes, more for custom).
http://ascendacoustics.com/pages/products/speakers/SRT/Ascend Sierra Ribbon Tower.pdf
Are they the best for <$5000? I’m not sure, but they should be up there.
http://ascendacoustics.com/pages/products/speakers/SRT/Ascend Sierra Ribbon Tower.pdf
Are they the best for <$5000? I’m not sure, but they should be up there.
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NRC’s measurements are only valid down to ~100Hz, as their chamber is not large enough for full-range accuracy, almost every speaker they measure has a dip ~80Hz; which obviously isn’t true to life, they use a compensation curve that they arrived at by measuring a speaker in a larger chamber and comparing results, it doesn’t work well.
EDIT: Didn’t see Ilkless said the same thing. Source:https://www.hifiplus.com/articles/p...ded-tour-of-canadas-nrc-acoustics-labspart-1/
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Speaking of crossovers, I have the F208 and although I’m happy with them, would there be any advantage to me upgrading the components with same values (RLC values)/better quality?
Chris
Chris
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