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Post by flamingeye on Dec 10, 2011 18:48:30 GMT -5
Not knowing how you made this it will be difficult to help , like what kinda FR sweep was used and how many mike positions and where and what mike was used etc...
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selkec
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Post by selkec on Dec 10, 2011 18:56:20 GMT -5
does Fr sweep mean frequency? If so then it was 0 to 120hz. I used my rat shack meter with the cal. file for it. Yeah I know its not the best but since Im not that picky then no biggie. I had a much flatter response with my old 10" polk
SO is this bad? being such a huge hump in the middle
one mic position. just ran it few times to make sure I got the same thing everytime
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DYohn
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Post by DYohn on Dec 10, 2011 18:57:42 GMT -5
Is this just the subwoofer with the mains off?
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selkec
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Post by selkec on Dec 10, 2011 19:05:12 GMT -5
yes sir. sub only. Should I do it with the mains? I didnt think people did it that way.
And my AVR is crossover at 80hz if that matters.
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Post by kellys on Dec 10, 2011 23:27:26 GMT -5
Flat is definitely better. It might take a little bit of listening to get used to it though, and you will probably have to readjust the sub level afterwards. Three notches are probably all you need. If you were setting the filters manually you could try something like: 44 Hz, 9 or 10 dB; 48 Hz, 12 dB, a little wider filter than the first; and 63 Hz 6 dB narrow. You might need some slight boost to even it out. My sub in room is similar. See attached graph, before and with EQ applied. I put in 8 filters to try and even things out. It worked really well. EQ definitely helps the SQ of the sub. Attachments:
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selkec
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Post by selkec on Dec 11, 2011 3:51:20 GMT -5
Flat is definitely better. It might take a little bit of listening to get used to it though, and you will probably have to readjust the sub level afterwards. Three notches are probably all you need. If you were setting the filters manually you could try something like: 44 Hz, 9 or 10 dB; 48 Hz, 12 dB, a little wider filter than the first; and 63 Hz 6 dB narrow. You might need some slight boost to even it out. My sub in room is similar. See attached graph, before and with EQ applied. I put in 8 filters to try and even things out. It worked really well. EQ definitely helps the SQ of the sub. what did you use to change it? and what did it sound like afterwards? I may not like flat. But if I can make it better with a BFD or anti mode I will. I just got a free midi thing to transfer the files into a BFD if I go this route shidh I probably will now since its cheap. aim just afraid it wil cause hum as when I had CS18.1 sub and behringer amp it introduced bad hum.
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jamrock
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Post by jamrock on Dec 11, 2011 7:41:05 GMT -5
I went with the 8033S because I'm a noob using these more sophisticated computer driven programs. I enjoy what I have, but possibly, it could be better if I had the flexibility of fine tuning. I have the choices of different preset sub EQs. But, being able to select your own subjective EQ curve is superior. I think that you should PM Nemesis.ie and have him walk you through the process. He is good at this. I wish that I could offer you some practical advice. But I want to encourage you to persist until you master it. Good luck!
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Post by Nemesis.ie on Dec 11, 2011 8:07:03 GMT -5
Flat is definitely better. It might take a little bit of listening to get used to it though, and you will probably have to readjust the sub level afterwards. Three notches are probably all you need. If you were setting the filters manually you could try something like: 44 Hz, 9 or 10 dB; 48 Hz, 12 dB, a little wider filter than the first; and 63 Hz 6 dB narrow. You might need some slight boost to even it out. My sub in room is similar. See attached graph, before and with EQ applied. I put in 8 filters to try and even things out. It worked really well. EQ definitely helps the SQ of the sub. what did you use to change it? and what did it sound like afterwards? I may not like flat. But if I can make it better with a BFD or anti mode I will. I just got a free midi thing to transfer the files into a BFD if I go this route shidh I probably will now since its cheap. aim just afraid it wil cause hum as when I had CS18.1 sub and behringer amp it introduced bad hum. Check out the MiniDSP - more customisable than the antimode and better/easier to use than the BFD (IMO. A different subject would help - I missed this thread due to the vague subject. IMO, you need to a) test your sub so you can see what issues it has, try to fix them and then b) see what the interaction between sub and mains is and adjust as needed. You can also add a "house curve" to taste once the room issues are addressed. Given the massive dip (hole) you have, you may need to move the sub and/or do some room treatment too.
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Post by Nemesis.ie on Dec 11, 2011 8:10:53 GMT -5
Flat is definitely better. It might take a little bit of listening to get used to it though, and you will probably have to readjust the sub level afterwards. Three notches are probably all you need. If you were setting the filters manually you could try something like: 44 Hz, 9 or 10 dB; 48 Hz, 12 dB, a little wider filter than the first; and 63 Hz 6 dB narrow. You might need some slight boost to even it out. My sub in room is similar. See attached graph, before and with EQ applied. I put in 8 filters to try and even things out. It worked really well. EQ definitely helps the SQ of the sub. what did you use to change it? and what did it sound like afterwards? I may not like flat. But if I can make it better with a BFD or anti mode I will. I just got a free midi thing to transfer the files into a BFD if I go this route shidh I probably will now since its cheap. aim just afraid it wil cause hum as when I had CS18.1 sub and behringer amp it introduced bad hum. The 2 subs I have furthest away (longest cable) both hummed (the 2 at the front with short cables do not), I put a Behringer filter inline and that stopped the hum instantly with no apparent detrimental effects. It was quite cheap too I think. Something like $50 including the extra 2 cables I needed.
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DYohn
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Post by DYohn on Dec 11, 2011 10:16:20 GMT -5
yes sir. sub only. Should I do it with the mains? I didnt think people did it that way. And my AVR is crossover at 80hz if that matters. Yes, I'd like to see the same sweep with all your speakers active. But the biggest problem with the sub curve is the boom around 50Hz. This is very likely due to a room mode (room modes or standing waves around 60Hz are common.) Did you run MCACC on your receiver? Did you activate the advanced EQ mode and ask it to correct for standing waves? If you haven't go into this mode and see if you can select 50Hz as the standing wave frequency and cut is by -8db or so. Yes, something like the Antimode device could handle this sort of issue, but your receiver should have the ability to tame it a bit.
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Post by flamingeye on Dec 11, 2011 11:35:10 GMT -5
Wow you guys are better then I not knowing what was used and how I don’t know how to read that graph and or if it’s even close to accurate , but anyway EQ ing to as close to flat is the best way to start and any of or all the devices mention will work very well
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selkec
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Post by selkec on Dec 11, 2011 11:49:54 GMT -5
yes sir. sub only. Should I do it with the mains? I didnt think people did it that way. And my AVR is crossover at 80hz if that matters. Yes, I'd like to see the same sweep with all your speakers active. But the biggest problem with the sub curve is the boom around 50Hz. This is very likely due to a room mode (room modes or standing waves around 60Hz are common.) Did you run MCACC on your receiver? Did you activate the advanced EQ mode and ask it to correct for standing waves? If you haven't go into this mode and see if you can select 50Hz as the standing wave frequency and cut is by -8db or so. Yes, something like the Antimode device could handle this sort of issue, but your receiver should have the ability to tame it a bit. yes I ran the mcacc and all that set up stuff. I am looking at the standing wave screen roght now and the lowest it will go is 63hz. I cant go to 50 hz and do -8db.
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DYohn
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Post by DYohn on Dec 11, 2011 11:56:45 GMT -5
Yes, I'd like to see the same sweep with all your speakers active. But the biggest problem with the sub curve is the boom around 50Hz. This is very likely due to a room mode (room modes or standing waves around 60Hz are common.) Did you run MCACC on your receiver? Did you activate the advanced EQ mode and ask it to correct for standing waves? If you haven't go into this mode and see if you can select 50Hz as the standing wave frequency and cut is by -8db or so. Yes, something like the Antimode device could handle this sort of issue, but your receiver should have the ability to tame it a bit. yes I ran the mcacc and all that set up stuff. I am looking at the standing wave screen roght now and the lowest it will go is 63hz. I cant go to 50 hz and do -8db. Ah. I didn't know how well the Pioneer handled sub-bass. Since it doesn't, you'll need some sort of subwoofer EQ.
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selkec
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Post by selkec on Dec 11, 2011 15:30:11 GMT -5
what did you use to change it? and what did it sound like afterwards? I may not like flat. But if I can make it better with a BFD or anti mode I will. I just got a free midi thing to transfer the files into a BFD if I go this route shidh I probably will now since its cheap. aim just afraid it wil cause hum as when I had CS18.1 sub and behringer amp it introduced bad hum. I have treatments but none for bass. would bass traps help? I would have no idea what kind and where to place them. Alsi I cant move the sub.So looks like the mini dsp may be in my future. Hope its easy yo use. I wonder if since my seating is on the back wall that also plays into the bass. I do have a accoustic panel behind my head. Check out the MiniDSP - more customisable than the antimode and better/easier to use than the BFD (IMO. A different subject would help - I missed this thread due to the vague subject. IMO, you need to a) test your sub so you can see what issues it has, try to fix them and then b) see what the interaction between sub and mains is and adjust as needed. You can also add a "house curve" to taste once the room issues are addressed. Given the massive dip (hole) you have, you may need to move the sub and/or do some room treatment too.
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NorthStar
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Post by NorthStar on Dec 11, 2011 15:34:12 GMT -5
Why not getting a good Bass Management & EQ system like from Audyssey, or ARC, or Trinnov?
* Graphic and Parametric EQs aren't cutting it no more nowadays.
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selkec
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Post by selkec on Dec 11, 2011 16:36:13 GMT -5
OK so I been tweaking as much as I can. and also ran the test with my mains and sub...... the graph will show 2 tests. after doing all this. I now am happy with my results. I also used no smoothing on the tests. Let me know what you guys think now. Its much better. Attachments:
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NorthStar
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Post by NorthStar on Dec 11, 2011 17:29:00 GMT -5
Looks good (better than before anyway); but does it also sound better (from your set of ears)?
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stiehl11
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Post by stiehl11 on Dec 11, 2011 19:04:23 GMT -5
I may be wrong but it looks like you have a pretty severe deficiency from 70 to 100 hertz?
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selkec
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Post by selkec on Dec 11, 2011 19:14:14 GMT -5
yeah from 70 to 100 it does drop quite a bit. but I woulod never know im missing it if I didnt see it. I wonder if the accoustic oanel behind my head is absorbing some of that. I may remove the panel and run it again. I refuse ot move my mains or sub. And not sure getting a mini dsp just for the one dip would be worth it. Time to run it again. I will post results. Any other ideas guys. I can do no more inside the elite to smooth it out.
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