dual membrane or dual coil (back and front) i think the later, since they used the wiggle patern to create overlap
Ill try making a measurement of the thiele small, with a foil like this is pretty hard 🙁 weight wont work. maybe known liters box works? maybe the high Q is visible in the impedance measurement, as a pretty peak 🙂 im sure it is
well i mean Qts , i can do a normal impedance sweep. would be a peak in there as well. then again it does not say all that much 🙂 , since a FR would also show the peak
The piccolo's metal support seems to me a beautiful handmaded DIY product. This statement isn't a degradation, only a subjective opinion at first glance.
This way is easyer
https://audiojudgement.com/measure-thiele-small-parameters-using-free-software/.
https://www.roomeqwizard.com/
Bernt
https://audiojudgement.com/measure-thiele-small-parameters-using-free-software/.
https://www.roomeqwizard.com/
Bernt
Thanks Bernt, i got a DATS v3 i just have to look into how to make one without using a weight, since there is no stiff cone. so i think i need to do the known box size method, and once free air.. never done that one.
Ahaaa !! i did not know that, i never put much attention in measuring TS parameters. only did it for cones a few times. thats good to know.
so i only have to conmnect them and do TS measurement, and dismiss vas ?
clearly needs damping, but that i already knew 🙂, so far i did it with DSP, since even a tiny bit of felt in between the foils damps it a bit to much.
ill measure the one that uses fabric on both sides see how that measures
ill measure the one that uses fabric on both sides see how that measures
Last edited:
i looked up the Q of the QUad ESL 63 and should according to people here be around 2. so i need to damp the bigger panel even a little more.
i might retry to damp internally, using the silk screen mesh i bought. to my ears that damped to much (also in the measurements) but that might be because the panel is super small, and has hardly any baffle. a bigger panbel might work fine with the mesh.. hmm remains interesting. mainly because making them is so damn simple 🙂 except making 2 foils... instead of one
i might retry to damp internally, using the silk screen mesh i bought. to my ears that damped to much (also in the measurements) but that might be because the panel is super small, and has hardly any baffle. a bigger panbel might work fine with the mesh.. hmm remains interesting. mainly because making them is so damn simple 🙂 except making 2 foils... instead of one
Oh anyone know if the Q around res is the same as the qts of the free air measurement ? before i say stupid things haha
if i look at the second panel the hump is much wider, could i even damp the lowest res more (by damping more in the middle) then give the outer edges less damping then it has right now, to get that a little bit higher. so i can recoop some output a bit higher up. while lowering the 36hz
if i look at the second panel the hump is much wider, could i even damp the lowest res more (by damping more in the middle) then give the outer edges less damping then it has right now, to get that a little bit higher. so i can recoop some output a bit higher up. while lowering the 36hz
Last edited:
Maybe you should measure your push pull planars to see the Qe
I will se my measurements from a strong magnetic field.
Bernt
I will se my measurements from a strong magnetic field.
Bernt
My measurements of AMT in a strong field as shown in post 82 is Qe 0,37 and 19,24 ,your is 0 meaning no help to controll membrane.
Bernt
Bernt