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Post by brad1138 on Mar 2, 2017 20:29:39 GMT -5
When I first got my UMC 200 a few years back, I tried EMOQ and didn't like the results, so I just used an SPL meter and the test tones to set speaker levels and left the EQ settings flat. I change the slope to 24 db on everything to fix subwoofer phase/3 dB hump issue.
I decided to try it again, and again the results are perplexing. I have two 15 inch subs and it set their crossover point at 120 Hz. Obviously not where you want your subs crossover at. Also it's set my main speakers as large I like them set small. If I change the sub crossover frequency back to 80 Hz and my main speakers too small, at 80 Hz Hertz, will that mess up the entire calibration?
Also, on one of my main speakers, EMOQ calibration said +5 dB at 54.1 Hz and -1 dB at 54.1 Hz... does that even make sense?
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Post by total2727 on Mar 2, 2017 21:48:08 GMT -5
It just won't do what Dirac can, I tried a bunch of stuff with my umc and never liked the results. The way your thinking got me the best results.
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Post by bolle on Mar 3, 2017 7:04:28 GMT -5
Actually you are confusing some things. The sub crossover is the LFE lowpass, so 120Hz makes a lot of sense here. This doesn´t have anything to do with your speakers being large or small or whatever.
You can set your speakers independently of this to whatever you like.
Regarding the EQ - what is the Q of that corrections? That could be very different...
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Post by brad1138 on Mar 3, 2017 11:23:32 GMT -5
Actually you are confusing some things. The sub crossover is the LFE lowpass, so 120Hz makes a lot of sense here. This doesn´t have anything to do with your speakers being large or small or whatever. You can set your speakers independently of this to whatever you like. Regarding the EQ - what is the Q of that corrections? That could be very different... I understand it is the low pass for the Sub, but you never want frequencies above 80 Hz or maybe 90 Hz going to your sub, they are too directional and you hear it coming from your sub. 80 Hz or lower has been the accepted sub Xover point since subs first came out. Some little satellite surround systems have higher Xover points because the satellites speakers are so small they can't handle below 150 or even 200 Hz, but that is why they sound like crap. I'll have to look later on the Q question.
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Post by bolle on Mar 3, 2017 12:53:09 GMT -5
No you are still on the wrong track! The setting named "sub crossover" is NOT the lowpass for the subwoofer - it is the lowpass for the LFE signal channel ONLY! In most receivers / processors you can´t even adjust this and it is fixed to 120Hz. In the UMC-200 you can adjust it. According to the specification of the LFE channel it can contain frequencies up to 250Hz but in most movies only signal up to 120Hz is included on this channel. The crossover frequency you set for each speaker acts as a highpass for the speaker and a lowpass for the portion of the speakers signal which gets send to the subwoofer. Hope you understand this now.
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Post by brad1138 on Mar 6, 2017 23:20:25 GMT -5
No you are still on the wrong track! The setting named "sub crossover" is NOT the lowpass for the subwoofer - it is the lowpass for the LFE signal channel ONLY! In most receivers / processors you can´t even adjust this and it is fixed to 120Hz. In the UMC-200 you can adjust it. According to the specification of the LFE channel it can contain frequencies up to 250Hz but in most movies only signal up to 120Hz is included on this channel. The crossover frequency you set for each speaker acts as a highpass for the speaker and a lowpass for the portion of the speakers signal which gets send to the subwoofer. Hope you understand this now. OK.. That makes sense. Although, in my defense, they sure could have picked a better name for it I will give it another try.
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Post by bolle on Mar 7, 2017 2:05:55 GMT -5
Yes, the naming is confusing and you are not the first person getting confused by this on these boards. GL for the next try!
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Post by brad1138 on Mar 12, 2017 2:04:52 GMT -5
If 120 Hz is industry default(and I agree it is), why does it default to 80Hz when you do a reset?
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Post by brad1138 on Mar 13, 2017 23:43:15 GMT -5
In general, I am happy with it. It does glitch, I have had to do factory default resets a couple times. Just a few days ago, I had no access to the enhanced bass option, and it was turned on after running EMOQ cal. So I defaulted it, and now have to set it up again...
I have found, setting all speakers to small and 80Hz, works best for me. I set the sub to 120, vs 80, don't really notice a difference. I also set all xover slopes to 24 dB/octave. It is supposed to fix an issue where the sub should really have its phase inverted, or you get a 3 dB hump at the xover point.
I am still a bit curious why the LFE xover point would default to 80 Hz if 120 Hz is industry standard, but no big deal in the end I guess.
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