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Post by phicar2 on Apr 25, 2010 16:30:13 GMT -5
Sorry for such a basic question but I just got my UMC-1 and am setting up the speaker sizes. On my LMC-1 I had the speakers set to "small" which I thought directed most of the bass to my subwoofer. I would like to duplicate this on my UMC-1 but wasn't sure how to do that exactly. My guess was to set the speakers to 80 and the subwoofer to 80 but I think I am probably missing something. Thanks for any help!
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Post by markus on Apr 25, 2010 16:37:29 GMT -5
You set the highpass and lowpass filter for the mains and the sub in Main Menu > Setup > Speaker Setup >Speaker Size and Crossover > Front Xover Slope.
"SubWoofer" sets a lowpass filter on the LFE in, not the subwoofer out. Strange but that's how Emotiva implemented bass management.
Best, Markus
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Post by phicar2 on Apr 25, 2010 17:36:16 GMT -5
Thanks for the reply! But I guess I am still a little confused. The Front Xover Slope has 2 settings, 12dB and 24dB. So I'm still not sure what I should be setting the L/R Front value to, the Center value to the L/R Surround value to and the SubWoofer value to...in addition to what I should set the Xover slope to...sorry I am being so dense but I am definitely out of my comfort zone with no "small" and "large" settings  |
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Post by moodyman on Apr 25, 2010 18:00:38 GMT -5
Setting any of your speakers, other than subwoofer, to "FULL" is the same thing as a "LARGE" speaker setting. If you set a crossover point for the mains, center, or surrounds you are in effect telling the UMC you have "SMALL" speakers.
Setting the slope will be new to a lot of people as this usually isn't an option on AVR's. I think the default setting is 12dB. I would just leave it set at that for now. You can try changing to 24dB and see if you hear a difference. Ideally you'd want some kind of RTA and pink noise to see which slope works best.
If the subwoofer controls are truely just for the LFE channel I would set the subwoofer xover at 100hz with a 24dB slope. The LFE channel supposedly contains freq's up to 120hz....so I wouldn't set it much lower then 100hz as you may lose out on some LFE material.
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Post by Topend on Apr 25, 2010 18:13:53 GMT -5
My sub's performance tops out at 100hz and my surrounds bottom out at 75hz from the independant reports I have read. When I get my UMC-1 I guess I will set the surrounds to 80hz and the sub to 100hz. My mains and center go much lower but I will try setting them between 60hz and 80hz to see which sounds better.
As for the 12db/24db setting, I will set it to 12db initially. I may play with this at a later date when everything else has been refined over the next few weeks.
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Post by markus on Apr 25, 2010 20:30:53 GMT -5
Ideally you'd want some kind of RTA and pink noise to see which slope works best. That's quite correct. You want to see the steady state response and adjust slope, level and delay accordingly. If the subwoofer controls are truely just for the LFE channel I would set the subwoofer xover at 100hz with a 24dB slope. The LFE channel supposedly contains freq's up to 120hz....so I wouldn't set it much lower then 100hz as you may lose out on some LFE material. Why only 120Hz? With newer codecs the LFE is a full bandwidth channel, i.e. 20 to 20000 Hz. See www.genelecusa.com/faq/multichannel/lfe-channel/ |
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Post by moodyman on Apr 25, 2010 20:55:31 GMT -5
If the subwoofer controls are truely just for the LFE channel I would set the subwoofer xover at 100hz with a 24dB slope. The LFE channel supposedly contains freq's up to 120hz....so I wouldn't set it much lower then 100hz as you may lose out on some LFE material. Why only 120Hz? With newer codecs the LFE is a full bandwidth channel, i.e. 20 to 20000 Hz. See www.genelecusa.com/faq/multichannel/lfe-channel/Yes there are some codecs that may use full bandwidth..but the article states that a 120hz cutoff is usually used. Whats the point of going higher if you can't reproduce it on a subwoofer anyway?? I thought this statement was interesting: In the DTS-HD codec only [DTS-HD Master Audio™ (lossless) and DTS-HD High Resolution Audio™ (lossy)] the DTS-HD decoder applies a low-pass filter at 100 Hz (-3 dB) with a 60 dB/octave roll-off onto the LFE channel.
In this case the UMC's LFE low pass filter should just be set at its highest setting to avoid interfering with the DTS-HD decoder... The things they don't tell you....  I wonder what Dolby True HD does...  |
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Post by Nemesis.ie on Apr 25, 2010 20:57:40 GMT -5
Ideally you'd want some kind of RTA and pink noise to see which slope works best. That's quite correct. You want to see the steady state response and adjust slope, level and delay accordingly. If the subwoofer controls are truely just for the LFE channel I would set the subwoofer xover at 100hz with a 24dB slope. The LFE channel supposedly contains freq's up to 120hz....so I wouldn't set it much lower then 100hz as you may lose out on some LFE material. Why only 120Hz? With newer codecs the LFE is a full bandwidth channel, i.e. 20 to 20000 Hz. See www.genelecusa.com/faq/multichannel/lfe-channel/That said, the article also says: "DTS-HD decoder applies a low-pass filter at 100 Hz (-3 dB) with a 60 dB/octave roll-off onto the LFE channel." So for DTS, the actual output should not be over 100Hz it seems? Does DD-THD do something similar I wonder? If it's expected that a sub will be connected there, do they want to pass any effects higher than typical sub frequencies to all the other channels or if not, it seems very odd to have it full-bandwidth. |
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Post by markus on Apr 26, 2010 6:10:28 GMT -5
In this case the UMC's LFE low pass filter should just be set at its highest setting to avoid interfering with the DTS-HD decoder... I would like to see the option "full" to switch it off. Best, Markus |
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zstar
Minor Hero
Posts: 60 
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Post by zstar on Apr 26, 2010 9:36:39 GMT -5
So based upon my setup
I wills set up my speakers in the following manner
Fronts -Full Subwoofer 100 with 24DB octave slope
Center -80
Does that sound right
and would I make a distinction between movies and music
Rears 80
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Post by lang827 on Apr 26, 2010 18:19:18 GMT -5
One thing to consider is setting your sub bandpass higher than 80-90Hz makes it possible to sense directionality of the low(er) frequencies. I personally cannot stand being able to locate the sub in the room by hearing alone.
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Post by Topend on Apr 26, 2010 18:24:37 GMT -5
Should we be setting the high and low pass the same, eg 80hz and 80hz?
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Post by phicar2 on Apr 27, 2010 10:07:44 GMT -5
Should we be setting the high and low pass the same, eg 80hz and 80hz? good question. based on the comment by lang837 I am now more confused. what "bad" will come of setting L/R Front, Center, L/R Surround, SubWoofer all to 80? My assumption would be that makes a "clean" brake of frequencies whereas setting the fronts, center to 80 and sub to 100 means there would be some "bleeding" of frequencies to multiple speakers... I guess my initial confusion was because I am pretty clueless about this (obviously). For some reason it wasn't clicking that for subwoofer setting it to 100 meant 100 and lower while all the other speakers setting it at 100 means 100 and higher. right??? |
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Post by moodyman on Apr 27, 2010 12:21:35 GMT -5
You guys have to remember the the xover setting are for different channels. The subwoofer xover setting is for the LFE channel only and will not affect any audio on the fronts, center, or surrounds...
I would consider setting the subwoofer/LFE channel xover to 120Hz and be done with it.
If you listening to DTS-HD material apparently the DTS decoder sets it's own LFE xover at 100HZ with a very steep slope.
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Post by Topend on Apr 27, 2010 15:51:56 GMT -5
Thanks, that helps clear things up in my mind.
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Post by Nemesis.ie on Apr 27, 2010 21:58:44 GMT -5
You guys have to remember the the xover setting are for different channels. The subwoofer xover setting is for the LFE channel only and will not affect any audio on the fronts, center, or surrounds... I would consider setting the subwoofer/LFE channel xover to 120Hz and be done with it. If you listening to DTS-HD material apparently the DTS decoder sets it's own LFE xover at 100HZ with a very steep slope. I agree. |
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I wonder what Dolby True HD does... 
