dominikz
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I'm sure they can - IMHO the problem here is SBIR - most likely from the side wall, but possibly also from ceiling/floor reflection.
How to set up roomfit correctly? help
- Thread starter dankandi
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I can see what is happening, i realise with phone + mic, i can move myself instead of the speakers!
so i moved myself all the way back to my display shelf, and it seems to reduced the sub problem! the placements science! I never thought that much of it, over WAF!
the speakers dip remains, sadly i dont have space to move them, maybe they are damaged
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I can see what is happening, i realise with phone + mic, i can move myself instead of the speakers!
so i moved myself to my display shelf, and it seems to reduced the sub problem! the placements science! I never thought that much of it, over WAF!
the speakers dip remains, sadly i dont have space to move them, maybe they are damaged
If it's boosting just to sort out the problem, you really don't want to do that. Pushing the drivers harder, and those Kef metal drivers do not tolerate abuse.
so is better to turn off roomfit seeing my results?
No, just don't allow it to apply any boosting. There is option to only apply cuts, it's called "no boost option" or something like that.
slartibartfast
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Have you tried increasing the crossover to 110Hz?I can see what is happening, i realise with phone + mic, i can move myself instead of the speakers!
so i moved myself all the way back to my display shelf, and it seems to reduced the sub problem! the placements science! I never thought that much of it, over WAF!
the speakers dip remains, sadly i dont have space to move them, maybe they are damaged
I tried, it has minimal changes in the roomfit results
but playing back music, i think the integration sounded better?
slartibartfast
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Increase the sub volume in the WiiM app and run Roomfit again and post the frequency response here.
Yeah ... it's this one single pic on a merry-go-round through the Internet.
This simply doesn't happen, but on purpose. 
For sure they can. Here is the pair in my bedroom, 7 cm from the front wall, no subwoofer.
No EQ.
Also there's no real RoomFit correction (frequency range 9.4 kHz to 20 kHz, min/max gain +/-0.5 dB, max Q 10, non-boost mode). I just "abused" RoomFit for a quick measurement to show how low the LS50 can go in-room.
This certainly looks a lot better to me.I can see what is happening, i realise with phone + mic, i can move myself instead of the speakers!
so i moved myself all the way back to my display shelf, and it seems to reduced the sub problem! the placements science! I never thought that much of it, over WAF!
the speakers dip remains, sadly i dont have space to move them, maybe they are damaged
If you cannot move the speakers and the sub, that's what it is. The entire setup will be relatively sensitive to small variations of the MLP.
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dominikz
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Actually, optimizing placement is one of the biggest upgrades for sound quality you can make - and it is free.
Next is optimal subwoofer integration (crossover frequency, level, polarity and delay) and EQ/room correction.
This is where really big improvements can be had, so it is IMHO really worth it to spend time to do it right. It may be a bit tedious, but you only need to do it once.
Gurkensepp
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RoomFit correction at this high frequency?
Typically it's best NOT to do full range correction, I stop at around 300-400hz, Anthem use 1khz or 4khz I forget which
Notice you have fair bit of high end roll off, try different toe in angle, try with the drivers firing right at you. That might increase the high end a bit.
Do you guys ever read before you post?
@Gurkensepp? @rccarguy?
Or do you just look at pretty pictures.
@Gurkensepp? @rccarguy?
Or do you just look at pretty pictures.
slartibartfast
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Exactly. Drives me mad sometimesDo you guys ever read before you post?
@Gurkensepp? @rccarguy?
Or do you just look at pretty pictures.
I tried 120hz and increase sub by another 3db, set 20-800hz B&K range, and i got this... Can i use PEQ, and do -5db for 20hz and +5db for 40hz, and we good?
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slartibartfast
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You still have a dip at 70Hz. I would try increasing the sub by another 6dB then run Roomfit again. I have my sub set to +7dB.
dominikz
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Let me start by saying that if you're happy with the sound, there's no need to change anything.
But IMHO there's still room for improvement here.
E.g. I dont believe subwoofer integration is optimal, as you now have a dip at 120Hz. This could probably be improved by adjusting loudspeaker/subwoofer delay settings, as I suggested before (link).
Also, your RoomFit settings can be improved - I'd suggest configuring Freq: 20Hz to 300Hz, e.g.
With these settings you probably wouldn't need additional EQ.
dominikz
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Yes, but it is debatable whether that 700Hz peak needs fixing at all.
Humans are able to distinguish between reflections and direct sound at higher frequencies (but not at low frequencies), so "fixing" the in-room peak at 700Hz might actually degrade the direct sound we perceive.
So we should only EQ based on in-room measurements below about 300Hz, and if a loudspeaker has direct sound response irregularities above about 300Hz, that should be fixed based on anechoic measurements (like the ones we can find on spinorama.org).
EDIT: Of course human ability to differentiate between direct sound and reflections doesn't happen exactly at 300Hz, the change actually appears to be gradual. But 300Hz is a reasonable cut-off point to use in practice.
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