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Post by tchaik on Apr 7, 2010 20:59:29 GMT -5
my question is simple.
i have read most all the umc threads and the umc manual but i am still a little confused.
my set-up is such that i need to set my l/r at full range but roll-off the bass on the center channel at about 100 hz. (when i finish my next diy speaker project that will change but for now i need a higher roll-off point for the center channel).
i have read page 33 of the manual over and over again but i am still not sure if the system allows me to set the l/r different from the center. can some of you umc owners answer that question for me?
i should be receiving my umc with the new firmware within the next few weeks and i want to be ready to hit the ground running when it shows up.
thanks..............
tchaik...............
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Post by threxx on Apr 7, 2010 21:21:08 GMT -5
Yes the center has a completely independent crossover setting from the mains. It would be a shame if it didn't since most people will full range mains do not have a full range center (does such a thing even exist??)
What I still haven't seen an answer for is if you set your sub at 80hz will it still play the material you cut off from your center between 80hz and 100hz, or does that material just disappear?
The manual certainly doesn't help clarify much though so I can understand your confusion. I've got several questions the manual doesn't answer and still no Emo reps have answered in this forum. I really hope they do a thorough job of explaining how everything functions in the revision whenever they get the time for that.
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Post by Topend on Apr 7, 2010 21:36:15 GMT -5
Threxx, (does such a thing even exist??) If you mean all three front speakers are matched, look at my speakers at www.krix.com.au. They have the same 6 drivers in all three speakers. Back to the question above, would you just set the sub to go up to 100hz if the center is set to crossover at 100hz? |
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Post by Dan Laufman on Apr 7, 2010 22:11:59 GMT -5
Hi Guy's,
The UMC-1 can assign different crossover frequencies for any of the speakers in the system.
So, you can have full range L&R's with a hi pass on the center. You can also set the crossover slope rate from 12dB or 24dB per octave.
The UMC-1 has a full quadruple bass management system that will re-direct low frequency information and sum if in the proper manner, so nothing is "lost.
Hope this helps.
Best to all,
Big Dan
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tknice
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Post by tknice on Apr 7, 2010 22:18:10 GMT -5
Threxx, (does such a thing even exist??) If you mean all three front speakers are matched, look at my speakers at www.krix.com.au. They have the same 6 drivers in all three speakers. Back to the question above, would you just set the sub to go up to 100hz if the center is set to crossover at 100hz? My front stage is matched as well. I think the answer is yes, it would still play the material but would depend on the capabilities of your speakers and sub as to whether you would do that or not. I would imagine crossing your sub over at 80hz will give your scenes more punch.  |
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Post by moodyman on Apr 7, 2010 23:26:04 GMT -5
What I still haven't seen an answer for is if you set your sub at 80hz will it still play the material you cut off from your center between 80hz and 100hz, or does that material just disappear? I'm pretty sure the sub xover (low pass setting) on the UMC is for the LFE channel only. So if the center channel is set at 100hz evreything below that will still go to the sub regardless of what the UMC sub low pass is set at. |
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Post by funboy on Apr 8, 2010 16:47:27 GMT -5
I think there will be a tiny hole from 80-100hz, and there should be. I wouldn't want my sub playing above frequencies I picked for it.
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DYohn
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Post by DYohn on Apr 8, 2010 16:59:47 GMT -5
I think there will be a tiny hole from 80-100hz, and there should be. I wouldn't want my sub playing above frequencies I picked for it. But of course it does. If you set a, say, 80Hz low pass crossover for the sub and, say, 12db/octave, that means that the subwoofer crossover will begin reducing the volume of signals above 80Hz so that at 160Hz, the volume is reduced -12db. At 320Hz (one more octave) the volume will be down by -24db. etc. Same for the high-pass set for other speakers. It is not a "hard cut-off," it is a slope. |
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Post by Topend on Apr 8, 2010 17:12:50 GMT -5
I think there will be a tiny hole from 80-100hz, and there should be. I wouldn't want my sub playing above frequencies I picked for it. But of course it does. If you set a, say, 80Hz low pass crossover for the sub and, say, 12db/octave, that means that the subwoofer crossover will begin reducing the volume of signals above 80Hz so that at 160Hz, the volume is reduced -12db. At 320Hz (one more octave) the volume will be down by -24db. etc. Same for the high-pass set for other speakers. It is not a "hard cut-off," it is a slope. I believe you can select 12db or 24db. If I'm correct the 24db would result in a steeper slope, right? |
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Post by moodyman on Apr 8, 2010 17:16:45 GMT -5
I think there will be a tiny hole from 80-100hz, and there should be. I wouldn't want my sub playing above frequencies I picked for it. nope..there will be no hole. The sub low pass setting on the UMC does not affect any other channel other than the LFE channel. Bass tones redirected from the center, left, right, etc...are not part of the LFE channel. If your center cutoff is set at 100hz everything below that is heading to your sub..regardless what the sub low pass is set at. |
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Post by funboy on Apr 8, 2010 17:40:30 GMT -5
hmm... what moodyman says seems to make sense of what Lonnie posted earlier, but that is no good for those of us that want to raise the crossover fairly high - say for instance for some smaller surround speakers. Can anyone confirm this?
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DYohn
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Post by DYohn on Apr 8, 2010 17:57:34 GMT -5
But of course it does. If you set a, say, 80Hz low pass crossover for the sub and, say, 12db/octave, that means that the subwoofer crossover will begin reducing the volume of signals above 80Hz so that at 160Hz, the volume is reduced -12db. At 320Hz (one more octave) the volume will be down by -24db. etc. Same for the high-pass set for other speakers. It is not a "hard cut-off," it is a slope. I believe you can select 12db or 24db. If I'm correct the 24db would result in a steeper slope, right? Exactly. |
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Post by Mike Ronesia on Apr 8, 2010 18:07:31 GMT -5
Is a steeper slope preferred? Seems like it would keep the signal where it is optimal.
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Post by darien87 on Apr 8, 2010 18:18:56 GMT -5
Is a steeper slope preferred? Seems like it would keep the signal where it is optimal. Unfortunately, there is no right or wrong. You just have to try it with your set-up and see which way sounds best. |
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rang
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Post by rang on Apr 8, 2010 18:52:49 GMT -5
i am new to all this just would like to know what settings would you all recommend 12db or 24db
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Post by moodyman on Apr 8, 2010 19:29:44 GMT -5
hmm... what moodyman says seems to make sense of what Lonnie posted earlier, but that is no good for those of us that want to raise the crossover fairly high - say for instance for some smaller surround speakers. Can anyone confirm this? Why can't you?? Don't the surrounds have there own xover adjustment?? As far as the 12 or 24 slope adjustment..I think its great that you have an option..but IMO the only way to effectively use it is to have an RTA or use something like REW so you can see on a graph what the 12 or 24dB settings is doing to the freq response. Otherwise I would leave it set at 12 unless you can hear an obvious benefit by changing it. |
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Post by funboy on Apr 8, 2010 19:53:56 GMT -5
hmm... what moodyman says seems to make sense of what Lonnie posted earlier, but that is no good for those of us that want to raise the crossover fairly high - say for instance for some smaller surround speakers. Can anyone confirm this? Why can't you?? Don't the surrounds have there own xover adjustment?? I would expect you can, but I meant that if you did then all of a sudden your subwoofer is now playing those higher frequencies, right? |
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Post by moodyman on Apr 8, 2010 20:02:19 GMT -5
Why can't you?? Don't the surrounds have there own xover adjustment?? I would expect you can, but I meant that if you did then all of a sudden your subwoofer is now playing those higher frequencies, right? ok..I see what your saying. Yeah..you don't want to xover at high freqs. But high to you want to go...?? Surrounds should be good down to 80 or 100hz. |
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Post by jutta on Apr 8, 2010 22:37:02 GMT -5
I would expect you can, but I meant that if you did then all of a sudden your subwoofer is now playing those higher frequencies, right? ok..I see what your saying. Yeah..you don't want to xover at high freqs. But high to you want to go...?? Surrounds should be good down to 80 or 100hz. My current side surrounds are my old mains (Dali 107's) with 10" drivers and from memory were rated down reasoably low. I will be setting my surround XO down around 60-70hz. Rears are just bookshelf and will be higher XO. Everyones system IS different and it's great you get this level of customisation with the UMC |
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Post by Topend on Apr 8, 2010 22:38:26 GMT -5
My mains/center goes down to 30hz/40hz and my surrounds go down to 55hz in room response as published by the manufacturer. I will still set the xover somewhere around 80hz.
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