Hello again,
so getting back the new speakers same problem is there. If got 2 others too, and 3 of them react in the same way. They don`t make any terrible. This is coming up from about 2000Hz to 16000Hz. If i had the possibility to show a frequency response i would do that. The one speaker who does his job does this just quite fine. So if you get two of them you just could be happy with them.
If I looked at the three ones with the problems i notice that the conus in the middle is not ok. They are some folds and is not completely flat if you look them from behind. It has a step. So my experience so far is not as it could be.
Michael
so getting back the new speakers same problem is there. If got 2 others too, and 3 of them react in the same way. They don`t make any terrible. This is coming up from about 2000Hz to 16000Hz. If i had the possibility to show a frequency response i would do that. The one speaker who does his job does this just quite fine. So if you get two of them you just could be happy with them.
If I looked at the three ones with the problems i notice that the conus in the middle is not ok. They are some folds and is not completely flat if you look them from behind. It has a step. So my experience so far is not as it could be.
Michael
Hoi, that`s hard. My wife even told me that if i had a look on it i had six speakers here. Only two of them were o.k. I should the good one stayed here and send the other back. Until now i have a great cabinet laying around.
My next mail is going to L*cao audio, spend a little time on the web and see what will happen.
My next mail is going to L*cao audio, spend a little time on the web and see what will happen.
sad to hear you got another faulty pair; i hope you get a refund, or at least a new pair of drivers.
care to upload a picture of the damaged cones?
i'm still pleased with my pair at least.
i have started the process of soft-mounting the drivers, and reducing the height of the bass-towers.
care to upload a picture of the damaged cones?
i'm still pleased with my pair at least.
i have started the process of soft-mounting the drivers, and reducing the height of the bass-towers.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Hello,
so here are some photos of the cones. I hope you can see the "damage". But i can`t believe that this is the real problem. I only aspected this, because all have in this way the same fault.
I hope i got some answers from lcao-audio. I contacted hinwill audio, which seems to be the producer, but they told me that this was coming from transport. Sorry, but in my opinion no way.
Michael
so here are some photos of the cones. I hope you can see the "damage". But i can`t believe that this is the real problem. I only aspected this, because all have in this way the same fault.
I hope i got some answers from lcao-audio. I contacted hinwill audio, which seems to be the producer, but they told me that this was coming from transport. Sorry, but in my opinion no way.
Michael
Hello,
so here are some photos of the cones. I hope you can see the "damage". But i can`t believe that this is the real problem. I only aspected this, because all have in this way the same fault.
I hope i got some answers from lcao-audio. I contacted hinwill audio, which seems to be the producer, but they told me that this was coming from transport. Sorry, but in my opinion no way.
Michael
so here are some photos of the cones. I hope you can see the "damage". But i can`t believe that this is the real problem. I only aspected this, because all have in this way the same fault.
I hope i got some answers from lcao-audio. I contacted hinwill audio, which seems to be the producer, but they told me that this was coming from transport. Sorry, but in my opinion no way.
Michael
Hello,
due to photos were not able to upload, here on a link for youtube. I hope it`s possible to here the difference.
http://www.youtube.com/watch?v=mOhIYrFRRfU
http://www.youtube.com/watch?v=lDS6DwObFho
due to photos were not able to upload, here on a link for youtube. I hope it`s possible to here the difference.
http://www.youtube.com/watch?v=mOhIYrFRRfU
http://www.youtube.com/watch?v=lDS6DwObFho
Last edited:
I really like the idea of "soft mounting" the drivers like this. Just curious as to what your crossover point is and if you're using any type of correction circuit or anything on these?
Your kind of suspension will have more modes of resonance than necessary IMHO. Just see the driver as a pendulum. And keep the frame as small as possible to avoid reflections:
Rudolf
I love the idea of dual 15" woofers (I even love the idea of just a single 15" woofer) in an open baffle but does that 8" driver 'floating' in space meet the 15s comfortably to sound good?
>>> Just see the driver as a pendulum.
Thanks for putting that picture in my mind. It may give me a few ideas for another project
I know everything is NOT about frequency response but wonder how low the floating driver is capable of going.
>>> Just see the driver as a pendulum.
Thanks for putting that picture in my mind. It may give me a few ideas for another project
I know everything is NOT about frequency response but wonder how low the floating driver is capable of going.still in the trial and error phase of things, as i have made a couple of measurment mics, but none of them measure the same, so i dont trust them completely
based on listening and the similarities of the different measurements i have made, i have made a temporary setup that sounds good enough for me to live with until i can get my hands on a proper mic.
i have a 150hz LR 12 db/oct low pass on the woofers, and run the L.cao fullrange.
the woofers has a 12db gain at 55hz (Q 1.9)
the l.cao has a peak of -5 at 1800hz (Q 1,3)
in addition i have added -4db to the treble controls on my kenwood 700c pre starting at 3000hz to counteract the rising response of the 8".
(the reason i did it on the kenwood was because it both sounded and measured correct, and i didnt want to fiddle with the minidsp EQ anymore
)I love the idea of dual 15" woofers (I even love the idea of just a single 15" woofer) in an open baffle but does that 8" driver 'floating' in space meet the 15s comfortably to sound good?
>>> Just see the driver as a pendulum.
Thanks for putting that picture in my mind. It may give me a few ideas for another project
according to my untrustworthy measurments, it starts rolling off around 300hz, so it still needs some EQ to properly meet up with the woofers; but it sounds pretty good without it, so until i can get my hands on a proper mic i dont really know how much of a dip there is.
Your kind of suspension will have more modes of resonance than necessary IMHO. Just see the driver as a pendulum. And keep the frame as small as possible to avoid reflections:
Rudolf
my goal with these speakers are for them to sound great off-axis, as they are my livingroom-speakers, and people never really sit in the sweetspot.
having tried a wider baffle with visaton b200 drivers, i prefer the no-baffle setup.
i know my suspension method is lacking, and i still plan to hang them up as pendulums, but i havent found bolts long enough to get the the centre of gravity far enough back.
i might end up making some kind of wooden brackets if i cant find any soon.
this is how the speakers are set up:
An externally hosted image should be here but it was not working when we last tested it.
hope that answers all your questions
-bjarne
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