9th June 2012
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#91 | | Lives for gear
Joined: Sep 2011
Posts: 654
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I just want to say thanks to cborg and bREAK THE NORM for the clarification behind the story of the room and that I was right all along.
BTW, the waterfall plot looks really, really good, like in my room, +/-3dB from 20-100Hz without resonances(off course, if you fix the 40Hz resonance, but this is an easy fix  ).
bREAK THE NORM, as you said, it works.  | 
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9th June 2012
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#92 | | Lives for gear
Joined: Aug 2003 Location: Cork Ireland
Posts: 8,799
 | Daft as a box of frogs
The Waterfall does look good to me. However The 40Hz issue is far from solved. Furthermore we have no Waterfall before the V6s were moved to the front. We also don't know where these Tubes were before that move. McT, I believe Matts has asked you to cease advocating on behalf of his products. If you really want to support and help him, why don't you do as he asks?
bREAK, if you are interested and have the time, perhaps you could do a new test as is, then remove the V6's and shoot again. Then we could see a genuine uncomplicated Before and After. I am sure Matts would find this very useful, as he has not presented any other such test.
Perhaps one of you would translate the conclusions of this one, briefly. http://epubl.ltu.se/1402-1773/2008/1...P-08195-SE.pdf
DD
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9th June 2012
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#93 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
| Quote:
Originally Posted by Mctwins  BTW, the waterfall plot looks really, really good, like in my room, +/-3dB from 20-100Hz without resonances(off course, if you fix the 40Hz resonance, but this is an easy fix ). | I don't know what you're looking at - I open the file - I change nothing except setting smoothing to 1/3 - then examine SPL from 30 to 100Hz.....
What I see is 77.19dB @ 30Hz - 90.58dB @ 100 Hz - that's a spread of 13.39dB - so roughly +/- 6.7dB.
Very respectable - but not +/- 3dB....... heck - you can't get to +/- 3dB even with a 1/1 smoothing....
What is it I'm missing here? What are you doing to see those results?
Rod
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9th June 2012
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#94 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by Glenn Kuras Break the Norm,
Thanks for posting the REW file. It seems to me that there is quite a bit of decay time at 40hz. Did you EQ the room? It kind of looks like that. Also the balance looks as the room is pretty dead, which might be fine for you but I would look into the 40hz problem. The goal is to have even decay times, for the most part. I have attached your room tests below.  |
Hi Glenn!
I see what you mean about the decay time at 40Hz, thank you for pointing that out. Just starting to learn how to read these different messurements/graphs so I'ts nice to get some tips.
And yes my room is quite dead, I'm used to it and it works for me = record vocals in the same spot.
All the best
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9th June 2012
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#95 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
|
Break the norm,
nice room - I'll bet it sounds damned good, if you can get that ringing under control it will be as good as rain.....
As we have explained to Matt - not attacking his product - although we would like to see some results from the lab tests - and certainly not attacking your room - you've done a hell of a job on it and should be proud.
If we have an issue it is with the lack of understanding - and thus bad communication from just one particular messenger as regards all of this.
Sincerely,
Rod
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9th June 2012
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#96 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by DanDan The Waterfall does look good to me. However The 40Hz issue is far from solved. Furthermore we have no Waterfall before the V6s were moved to the front. We also don't know where these Tubes were before that move. McT, I believe Matts has asked you to cease advocating on behalf of his products. If you really want to support and help him, why don't you do as he asks?
bREAK, if you are interested and have the time, perhaps you could do a new test as is, then remove the V6's and shoot again. Then we could see a genuine uncomplicated Before and After. I am sure Matts would find this very useful, as he has not presented any other such test.
Perhaps one of you would translate the conclusions of this one, briefly. http://epubl.ltu.se/1402-1773/2008/1...P-08195-SE.pdf
DD | Hey!
If you look at my thread in studio forum the first measurement post i did was without the "tube-traps" and without the V-6s and V-4. Only had my own build broadband absorber in the front and the two ones on the sides and the sofa in the back with some Auralex smal panel treathment on the back wall.
Here is the graph, the rew-file and as it looked.
This measurement is done with both speakers at the same time. http://jonathanojeda.com/studiobilder/Jompastudio.mdat      
It was explained to me later in the forum to do the speakers separately.
Here is that measurement and graph. http://jonathanojeda.com/studiobilder/Jompastudio2.mdat  
If you compare these tests with the latest that I posted you can see what a great improvement it was in the last one, right!
I'm not saying that i dont have any problems left but it got so much better that for me it solved my big problems, it can always get better.
But what we want to sort out here is what got better with the DIY tybes and what got better with the Svanå traps, Right, or?
I'm not going to take out the V-6s and do a new measurement with only the tubes cas the V-6s weig around 50kg, they are to heavy to carry in and out just for that.
But as soon as I have the time = tonight or tomorrow I will do a new test with the V-6s closed and then open, then perhaps we can sort out how the tubes works in my room vs the V-6s and the V-4. Okey?
All the best.
Jonathan
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9th June 2012
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#97 | | Lives for gear
Joined: Aug 2003 Location: Cork Ireland
Posts: 8,799
| Cool
I would greatly appreciate that test bREAK.
I can't read the .mdat file you have posted. Could you please ZIP it and try again. I am much more interested in the Waterfalls before and After and I will present them properly for you if you can get the new file working here.
Did you use the same measuring spot for the mic all the time?
Did you tune your V6's to 80Hz?
DD
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9th June 2012
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#98 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by Glenn Kuras Break the Norm,
Thanks for posting the REW file. It seems to me that there is quite a bit of decay time at 40hz. Did you EQ the room? It kind of looks like that. Also the balance looks as the room is pretty dead, which might be fine for you but I would look into the 40hz problem. The goal is to have even decay times, for the most part. I have attached your room tests below. | Glenn!
I forgot one thing = no i did not EQ the room except for a dip at 150Hz -4db on the Genelecs to compensate for the refelection of my table = I have come to the conclusion that I'ts causing the peak at around 150Hz. You can see that on the tests.
Simma cool | |
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9th June 2012
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#99 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by Rod Gervais Break the norm,
nice room - I'll bet it sounds damned good, if you can get that ringing under control it will be as good as rain.....
As we have explained to Matt - not attacking his product - although we would like to see some results from the lab tests - and certainly not attacking your room - you've done a hell of a job on it and should be proud.
If we have an issue it is with the lack of understanding - and thus bad communication from just one particular messenger as regards all of this.
Sincerely,
Rod | Hi Rod!
Thanks, yes I am very happy with the result soo far.
I understand the situation here and thats why i felt I had to step in
Thanks again
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9th June 2012
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#100 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
|
People
I've done some new measurements.
First I must point out that this is not going to be a completely fair comparison. I have sold my Genelec 8040s and run Genelec 8030s with an old sub. I did not make the new measurements With the 8030s and the sub because I do not trust the sub and the crossover and the 8030s alone would not work as they don't go that low in frequency.
I've done the new test with a pair of Yamaha HS80 "Help " Which I really like. I get good results working on them but I know that they are not as acurate as the 8040s and especially not in the base.
It does not really matter that much because I think that the new measurements show what it was we were wondering.
The peak are not as strong as before at 40hz becuse the Genelecs went deeper and the Yamahas roll off much higher.
Well with all the V-traps closed i have a difference at 11db between the peak 40 and dip 75 and after having all the traps wide open i only have 6db difference between these specific frequencies. I think it is a good result.
You will also see a big peak at around 150Hz becuse there are no switsh to eaven out desktop reflections on the Yams as it was on the Gens. http://jonathanojeda.com/studiobilder/gearslutz.mdat  
Jonathan
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9th June 2012
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#101 | | Lives for gear
Joined: Aug 2003 Location: Cork Ireland
Posts: 8,799
| Realistic
Thanks bREAK. Try clicking on the link for the .mdat file and you should see the problem I mentioned earlier. You need to Zip these files before attaching.
Again the Waterfall is the more important view here, so if you get that file working I would show you an OverLay of Vs open and closed.
If you wish send me the file by email (address on my website) and I will sort it out for you.
DD
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9th June 2012
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#102 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
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DD,
it worked perfect for me......... in both posts -
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9th June 2012
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#103 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
| Quote:
Originally Posted by bREAK THE NORM People
I've done some new measurements.
First I must point out that this is not going to be a completely fair comparison. I have sold my Genelec 8040s and run Genelec 8030s with an old sub. I did not make the new measurements With the 8030s and the sub because I do not trust the sub and the crossover and the 8030s alone would not work as they don't go that low in frequency.
I've done the new test with a pair of Yamaha HS80 "Help " Which I really like. I get good results working on them but I know that they are not as acurate as the 8040s and especially not in the base.
It does not really matter that much because I think that the new measurements show what it was we were wondering.
The peak are not as strong as before at 40hz becuse the Genelecs went deeper and the Yamahas roll off much higher.
Well with all the V-traps closed i have a difference at 11db between the peak 40 and dip 75 and after having all the traps wide open i only have 6db difference between these specific frequencies. I think it is a good result.
You will also see a big peak at around 150Hz becuse there are no switsh to eaven out desktop reflections on the Yams as it was on the Gens. | John,
when you did these tests - was it back to back? The mic was never moved - the settings were never changed on the chain - everything was exactly the same except for the open/shut condition of the Vari boxes (meaning open/shut)
Rod
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9th June 2012
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#104 | | Gear Guru
Joined: Jul 2005 Location: Atlanta, GA
Posts: 14,390
| Quote:
Originally Posted by bREAK THE NORM Glenn!
I forgot one thing = no i did not EQ the room except for a dip at 150Hz -4db on the Genelecs to compensate for the refelection of my table = I have come to the conclusion that I'ts causing the peak at around 150Hz. You can see that on the tests.
Simma cool | I did not see any reflection like that in the testing but it could be. It could also be the way you have the monitors.
If you don't mind posting the REW file for the last 2 tests that would be great. | |
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9th June 2012
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#105 | | Lives for gear
Joined: Feb 2007 Location: Belgrade, Serbia
Posts: 1,381
|
I really run over your graphs and .mdat file, but I notice something.... Quote:
Originally Posted by bREAK THE NORM .......
The peak are not as strong as before at 40hz becuse the Genelecs went deeper and the Yamahas roll off much higher.
..... | Your Yamaha loudspeakers radiate just enough LF sound energy to show us any significant behavior or any significant change of it, arround 40Hz in your room.... Quote:
Originally Posted by bREAK THE NORM .....
You will also see a big peak at around 150Hz becuse there are no switsh to eaven out desktop reflections on the Yams as it was on the Gens.
.... | from my experience 150Hz interference will hardly come from desk reflections, especially so strong... but YMMV
I attached both results in the same graph, so difference may be easier to notice for other visitors.
__________________
B. Petrovic MyRoom Acoustics -- "Religion is belief in someone else’s experience. Spirituality is having your own experience." (Deepak Chopra) | |
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9th June 2012
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#106 | | Lives for gear
Joined: Feb 2007 Location: Belgrade, Serbia
Posts: 1,381
| Quote:
Originally Posted by Rod Gervais DD,
it worked perfect for me......... in both posts - | .... as for me.... | |
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10th June 2012
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#107 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by DanDan Thanks bREAK. Try clicking on the link for the .mdat file and you should see the problem I mentioned earlier. You need to Zip these files before attaching.
Again the Waterfall is the more important view here, so if you get that file working I would show you an OverLay of Vs open and closed.
If you wish send me the file by email (address on my website) and I will sort it out for you.
DD | Hello!
Very strange that the files don't work for you.
No problem for me?
PM me your mail and i send it to you.
J
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10th June 2012
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#108 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by boggy I really run over your graphs and .mdat file, but I notice something....
Your Yamaha loudspeakers radiate just enough LF sound energy to show us any significant behavior or any significant change of it, arround 40Hz in your room....
from my experience 150Hz interference will hardly come from desk reflections, especially so strong... but YMMV
I attached both results in the same graph, so difference may be easier to notice for other visitors. | Hi!
Well you are right about the Yamahas and the base.
I will have to try to do more tests with a speaker that goes lower.
But! The 40Hz went down 3db and the 80Hz up 2db.
Got better results with the 8040s as they gave me more problems in the lowend .
You might be right about 150Hz but i was assuming that it was my table cas there are some strange reflections going on there, i don't know?
Nice that you dropped by.
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10th June 2012
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#109 | | Gear Head
Joined: Nov 2011 Location: Planet Dot
Posts: 42
| Quote:
Originally Posted by Rod Gervais John,
when you did these tests - was it back to back? The mic was never moved - the settings were never changed on the chain - everything was exactly the same except for the open/shut condition of the Vari boxes (meaning open/shut)
Rod | What do you mean with back to back ?
The only thing that was changed was the open/shut condition of the Vari boxes = the mic was on the same place and so on.
Jonathan
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10th June 2012
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#110 | | Lives for gear
Joined: Aug 2003 Location: Cork Ireland
Posts: 8,799
| Files
Weird file stuff. Must be a Mac/Safari incompatibility with the forum software.
When I click on the .mdat links I get this
¬ít$TMreq Imported Measurement Data FilewtNotes:wsrroomeqwizard.MeasDataîÝï‚~ë2IcountI
dataLengthFendFreqFfreqStepDimpedanceCalZisLogSpacedDleadsRDlogStepD
logStepLogD
octaveFracZphaseIsUnwrappedIppoDrefRJsourceFileDateI
sourceTypeIspeakerBassMgmtShapeI
speakerCutoffF startFreqZuseBarsFvalidEndFreqFvalidStartFreq[
diffValuest[FLeqNametLjava/lang/String;L filterSettLroomeqwizard/FilterSet;[
freqValuesq~[gdValuesq~LirtLroomeqwizard/IRFloat;L measNotesq~LmeterCaltLroomeqwizard/CalData;LpeakstLjava/util/ArrayList;[phaseValuesq~[rawPhaseValuesq~[rawUnwPhaseValuesq~[ rawValuesq~L
rewSubVersiontLjava/lang/Integer;L
rewVersionq~ LscCalq~L shortDescq~LsourceFileFormatq~LsourceFileNameq~LspeakerBassMgmtSlopeq~ LsplCalOffsettLjava/lang/Double;[ splValuesq~LsubLFCutoffq~ L
subLFSlopeq~ LtargetLevelq~
LtstLroomeqwizard/TSParams;[unwPhaseValuesq~LusesEmbeddedCalDatatLjava/lang/Boolean;L versionStq~xpçûFœ?ò>¬D?ð¿ð6a–VPA™lFœ?òA™lptDSP1124Psrroomeqwizard.FilterSetBåv÷[filterst[Lroomeqwizard/Filter;xpur[Lroomeqwizard.Filter;AêÿSnìxpsrroomeqwizard.Filter¿S¢¹TàK'DADQDa0Da1Da2DaC1DaC2DaC3DaSumDalphaDb0Db1Db2DbC1DbC2DbC3DbSumDbetasnIcontrolDcsZenabledDfcDfreqNormDgainDomegaF
optMaxFreqF
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Not Swedish I'd say. Thanks for you patience and efforts Jonathan.
I will PM an email address.
DD
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10th June 2012
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#111 | | Lives for gear
Joined: Sep 2011
Posts: 654
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bREAK THE NORM........keep up the good work , you are going in the right direction.
Your result is very good, you have clearly shown before and after mesurements and put a great effort here. You can show billions of measurements but still they will find some tiny error in those measurements and never be satisfied.
From that little room you have and to have a result like this is outstanding. All that counts, is that you are satisfied.
If you have any question, feel free to PM me.
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10th June 2012
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#112 | | Lives for gear
Joined: Feb 2007 Location: Belgrade, Serbia
Posts: 1,381
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Hi Jonathan, Quote:
Originally Posted by bREAK THE NORM .........
Got better results with the 8040s as they gave me more problems in the lowend . | Your better results may be from different position of loudspeaker and listener. Acoustic treatment in the room doesn't know anything about your loudspeakers, and has linear behavior, so if some loudspeaker radiate more LF energy in your room, your treatment must dampen it for the same ratio, as loudspeaker that radiate more at lower frequencies, when we measure it. So, again, your Yamahas are pretty good for illustration of efficiency of your treatment, and you must find a source of your less better results in their positioning (and position of listener too.) Quote:
Originally Posted by bREAK THE NORM You might be right about 150Hz but i was assuming that it was my table cas there are some strange reflections going on there, i don't know? | Side walls, floor and ceiling are much stronger source for interference at 150Hz, again, from my experience. Quote:
Originally Posted by bREAK THE NORM Nice that you dropped by. | Hope I help you. | |
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10th June 2012
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#113 | | Lives for gear
Joined: Feb 2007 Location: Belgrade, Serbia
Posts: 1,381
| Quote:
Originally Posted by DanDan Weird file stuff. Must be a Mac/Safari incompatibility with the forum software.
........... | Yes... try Camino or Opera (if exist for Mac)
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10th June 2012
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#114 | | Gear nut
Joined: Aug 2008 Location: Sweden
Posts: 148
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Added the pictures as I promised in my previous post: How to treat nulls
I see there's even more tests now so I guess bREAKTHENORM himself is the one to ask.
__________________
:: Christian Borg "It's the sound itself that's important and the ability to work with it, not where it comes from. They [musicians] are manipulators of sound, not purists." - Bob Moog
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10th June 2012
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#115 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
| Quote:
Originally Posted by Mctwins You can show billions of measurements but still they will find some tiny error in those measurements and never be satisfied. | LMFAO - I have no problem with his measurements - and am neither satisfied nor unsatisfied - after all it is not my room nor a room I designed...... I am simply viewing data....... and neither I nor anyone else has mentioned any error in the measurements.
He has every reason to be happy with the results he's getting........
My only "problem" had to do with your inability to look at the data and understand what it was you were seeing.
You still haven't explained to us exactly how you come up with +/- 3dB with the data he provided........
Do you have a special pair of magical glasses that allow you to see things we can't? Quote: |
If you have any question, feel free to PM me.
| If he has any questions he would be much better off to ask someone who actually knows what they are talking about - perhaps Matts...... the odds of him getting an answer from you that has anything to do with reality is pretty slim seeing as you don't even understand the data......
Rod
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10th June 2012
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#116 | | Lives for gear
Joined: Jul 2003 Location: Central Village CT
Posts: 3,333
| Quote:
Originally Posted by bREAK THE NORM What do you mean with back to back ?
The only thing that was changed was the open/shut condition of the Vari boxes = the mic was on the same place and so on. | The reason I asked was because I was a bit surprised to see changes in high frequencies when I examined the before/after measurements......... I did not expect to see that, and am a little puzzled by it.
Rod
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10th June 2012
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#117 | | Gear maniac
Joined: Aug 2011
Posts: 194
| Quote:
Originally Posted by DanDan The Waterfall does look good to me. However The 40Hz issue is far from solved. Furthermore we have no Waterfall before the V6s were moved to the front. We also don't know where these Tubes were before that move. McT, I believe Matts has asked you to cease advocating on behalf of his products. If you really want to support and help him, why don't you do as he asks?
bREAK, if you are interested and have the time, perhaps you could do a new test as is, then remove the V6's and shoot again. Then we could see a genuine uncomplicated Before and After. I am sure Matts would find this very useful, as he has not presented any other such test.
Perhaps one of you would translate the conclusions of this one, briefly. http://epubl.ltu.se/1402-1773/2008/1...P-08195-SE.pdf
DD | DanDan, I read that report a couple of years ago. In short it is of no value, nothing of importance could be found with any certainty. The 2 subs used were unsuitable for the test and some electronics (tone generator) also. So, nothing negative or positive about the Varitunes should be said from that test. I suppose the university graduate got quite frustrated …
The Varitune works. A friend of mine has a V4 in a corner of his living room. About 7x3,7x2,4 m, one short wall and one long wall of concrete, whole speaker wall consists of windows, remaining “wall" is open to a kitchen). By varying the opening of the sliding door with its 15 cm / 6” “neck” sticking into the box, one gets an audible change at sweet spot 1,5 m away from the corner, for a 56 Hz mode. Not very dramatic, a couple of dB, no magic silver bullit of 10 dB or so.
Rod, I believe you will not receive any 3rd party measurements by a certified laboratory / institute from SMT on their products. They may exist but they have not been published on SMTs home page ( Akustik) There are figures stated for physical volume, frequencies, absorbtion and diffusion factors but there is no reference given as: by whom, how, how many of the devices which were tested to get the result, type of room used or other circumstances.
Whitecat deleted my post, above post 90, where I showed a pdf with fairly accurate but not exact measurement and shape of Svanås diffusor “Wing”. (Whitecat received, in my opinion, false info from a member.) The reporting party wrote to me: “Please remove the PDF-document as for the SMT-Wings. It´s a copyright document not for use in public.”
Well, the pdf or Svanås Wing does not fall under any copyright or patent legislation, nor does the “Wing”, to my knowledge, even carry a registered trademark (a much lesser type of protection).
I can very well understand a manufacturer does not want any details shown. At the same time, when a company states; A (= one) device with dimensions W600xD250xH1200 mm is capable of diffusion between 250/300 Hz up to 12000/16000 Hz depending on model, this sounds too good. It is further stated the Wing will focus and widen (my emphasis) the soundstage while the recording rooms acoustics will be transformed to sweetspot. (Cited from this SMT-post: Vingen och dess funktion... - Euphonia Audioforum Swedish speaking members should be able to verify I have not corrupted the translation) A picture of the Wing in the economy version corrugated cardboard: Vingar för IKEA vänner - Euphonia Audioforum going for about SEK 1000 / EUR 110 / USD 150, there are also those in MDF or plastics.
In my view, unsubstantiated sales talk (with oxymorons), as long as there is no verification or measurement along with the statement. => Hence, I published the pdf with dimension and shape for your evaluation.
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10th June 2012
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#118 | | Lives for gear
Joined: Aug 2003 Location: Cork Ireland
Posts: 8,799
| Progress
Thank for the summary of that test adhoc. And for the very reasonable synopsis of where we stand.
Thank for presenting the Before and After Waterfalls Christian, and all your efforts. I am however still unclear as to consistency before and after in those tests. Mic and Speaker positions. What frequency the Varis were tuned to?
While hoping for further clarification from bREAK, I see little to no change in the 40Hz mode, and I don't see an 80Hz mode. Just a hole consistent over time.
Overall corner SBIR comes to mind, with large MDF boxes fixing it by 'removing' much of the corner. Seems like there are times when IKEA might be the best place for corner treatment. ;-)
At the moment bREAK has provided us with a REW file showing the Varis open and closed. I am about to PM him my address to get the file by email, but if anyone else wishes to show the Waterfalls in the meantime?
DD
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10th June 2012
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#119 | | Gear Guru
Joined: Jul 2005 Location: Atlanta, GA
Posts: 14,390
| Quote:
Originally Posted by Mctwins bREAK THE NORM........keep up the good work , you are going in the right direction.
Your result is very good, you have clearly shown before and after mesurements and put a great effort here. You can show billions of measurements but still they will find some tiny error in those measurements and never be satisfied.
From that little room you have and to have a result like this is outstanding. All that counts, is that you are satisfied.
If you have any question, feel free to PM me. | What kind of error are you talking about?  | |
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10th June 2012
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#120 | | Gear Head
Joined: Sep 2011
Posts: 49
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Adoc we asked GS to remove the drawing of the simple reason that the Wing family just got a new baby and we are just now working on a application form for design protection inside EU (as we have rest of the family) Instead of ask SMT if its Ok ,you only show that you have some kind of agenda and that was the reason we reported the drawings
If you want to question the Wings you should know that they were choosen when a test class room was built for hearing-impaired Mr Hedback was also kind enough to give feedback from his visit at CEDIA on GS
Regarding the LAb report of the Varitunes is the simple explanation that they was choosen when a global leading company in its field of outdoor machines had the goal to built the most accurrate lab possible The result was amazing +- 0,3dB from 31.5hz Acoustican was Lennart Nilsson ( LN Akustikmiljö AB) If some GS member have questions around my Wing family and my Varitunes send me a mail (matts@difussor.com) and I will see that Lennart answer and explain that the S-field concept is the way to go if you want to skin the poor cat as accurate as possible (then you cant use any soft tools :-)
I hope to present the hole Wing family in a couple of weeks in Magazines and forums around the world
Best
Matts Odemalm SMT AB www.performanceacousticslabs.com | |
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