Try it out and let us know! I’d be very curious myself.
One of these days I’m going to invest in a lab grade gaussmeter (and reference test magnet), which will be very interesting to use for testing many of these theories.
Until then, we just have to try different things and experiment, using our ears to see what the effects are.
I think this might be possible if we can get some steel housing for magnets
And if we can get a cylindrical thin axial magnet with two layer of concentric magnet...
Inner circle is south and outer circle is north(or vice versa according to driver magnet structure)
Took a break from building iem and trying to perfect the Peerless HPD50 driver from Parts express...
This driver is used in kennerton vali and has its whole specsheet released... Which Is helpful as thus I will be upgrading circuitry according to magnets changing the way the flux works, having way more fine control on driver
Or we can order different type of magnets and create a concentric hall back array magnet with super power at north pole and then add a steel cap over it...to redirect flux...
That would be even more crazy
That would be easier to do plus it needs the axial ring magnets and rectangular magnet...to redirect my north pole flow...
And actually I mean way easier
According to my estimation...we can reach 1.8Tesla force if we can get a Hall back array in ring shape
sissue
Like this..
But then we have to get a steel cap with cut out for magnet with equal distance...otherwise magnets are pretty easily available...
The ring figure bellow is the structure of magnets as how we will see it..
We might hit a lot of magnetic flux plus some no flux on the down part, which makes the driver magnet assembly itself shielded...
That would be more than Beyer Tesla driver....
Hahaha
Having higher field by piggybacking magnet
1. Increase sensitivity because overall field was increased
2. Lowering Qts slightly by lowering Qes
3. Dramatically increase stray magnetic field(which has to be shielded)
But in Hall back array, we can eliminate the 3rd issue.
Qts mostly apply to speaker resonant frequency or where speaker may suck up too much signal voltage..
As we can see speaker impedance..they have peak at low frequency... That's what makes speaker bassy... As more voltage sucked in, means more energy thrown out...and resonant frequency means that speaker ....if moved manually at that specific frequency manually, will produce back emf..
Piggybacking magnet technically lower Qts.
Which means that you are damping the speaker movement itself..
Some people use foam inside the headphone cups to do the same...you are just doing it with speaker... And way more effectively..
And since the damping effect comes in place...speaker technically sucks less voltage inherently on resonant frequency which gives it flatter impedance... And as the resonant frequency is lowered....less back emf is generated
So you are
1. Reducing bass resonant frequency
2. Reducing Back emf which leads to lower linear and non linear distortion
3. More magnetic flux means way more control and less oscillations of diaphragm like modal breaks(making things sound tighter)
4. Higher sensitivity
I can make simpler structure to concentrate magnetic fields...
Which can also be done by everyone...
The above one are just concept .
And yah
N55 magnets are available now..
Those MotherF***** are crazy..
I was not able to lift them off from my iron block at all...they are so strong that if other magnet is separated with just a plastic plate.. And they are attracting each other...they can break themselves and the plastic plate