[goobicii]

ABYSS and also the new Audeze EL 8.... planar magnetic headphones with magmets only on one side,they always put the magnets between driver and ears,I think thats bad decision.Yes the magnets on the other side are gone but there is grill thats almost same as magnets so the benefit is lowered


I was thinking about modding abyss,flip it to other side so theres absolutely nothing between the driver and ear,no grill,no magnets no mesh,no cloth for pure direct sound.I belive the magnets between ear and driver do far more damage than the magnets on other side

 

[jcx]

likely its made that way on purpose
 
you have to have a feel for acoustic principles to even start making inferences about the design and what the effect of a change might be
 
for things with features much smaller than the wavelength of the sound you can mostly approximate them as impedances - mostly resistive in the case of a grid with some ratio of open vs blocked area
 
my slightly educated (in acoustics) guess is that with the acoustic resistance so closely spaced to the diaphragm it is strongly linked to the diaphragm motion to very high frequency and it may not even make much difference whether the resistance is inside or outside the ear cups

 

[arnyk]

ABYSS and also the new Audeze EL 8.... planar magnetic headphones with magnets only on one side,they always put the magnets between driver and ears,I think thats bad decision.Yes the magnets on the other side are gone but there is grill thats almost same as magnets so the benefit is lowered


I was thinking about modding abyss,flip it to other side so theres absolutely nothing between the driver and ear,no grill,no magnets no mesh,no cloth for pure direct sound.I belive the magnets between ear and driver do far more damage than the magnets on other side

 
When planar transducers, whether magnetic or electrostatic have diaphragms that are activated from both sides, this is usually considered to be an advantage for cleaner sound. Activating a diaphragm from both sides usually reduces nonlinear distortion and facilitates cleaner performance at higher SPLs.
 
One of the advantages of planar diaphragms is that they usually are far larger and thus distribute the sound generation process over a far larger area. Thus, partially blocking the diaphragm with some of the structures used for generating activating forces like magnets or electrodes has very small or no negative consequences.
 
Usually, changing magnetic or lectrostatic headphones so that the diaphragm is activated on only one side rather than two is done to simplify the design  and reduce production costs while accepting a significant reduction in low distortion acoustic output.

 

[davidsh]

There's another factor wrt electrostats. If single sided the diaphragm will be attracted towards the stator at all times due to electrostatic induction.

Good point with the wavelength of sound vs. size of internal structures.

 

[asdfg]

One-side planar headphones has its advantages, but it also has its disadvantages. Not entirely true to just point out its advantages.

 

[asdfg]

Although several limitations are incurred when doing such kinds of analysis.