Hi everyone .
since i'm an audiophile crazy it's been a while that keeps buzzing in my head one thing (i don't know why). 😀
a speaker that uses many permanent magnets each with its own voice coil (same principle as the cone loudspeakers), all together moving a single large membrane (as in planars).
practically a hybrid that combines the characteristics of two different worlds, magnetoplanar and cone magnetodynamic loudspeakers.
exist ? to you it appears that some builder or some do-it-yourself has tried to build one? .
how do you think it would be?
since i'm an audiophile crazy it's been a while that keeps buzzing in my head one thing (i don't know why). 😀
a speaker that uses many permanent magnets each with its own voice coil (same principle as the cone loudspeakers), all together moving a single large membrane (as in planars).
practically a hybrid that combines the characteristics of two different worlds, magnetoplanar and cone magnetodynamic loudspeakers.
exist ? to you it appears that some builder or some do-it-yourself has tried to build one? .
how do you think it would be?
Attachments
Sony built few midbass drivers flat square shaped honneycomb membrane moved by four voice coil based drivers.
Nothing new.
Nothing new.
Attachments
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Not an exhaustive list, but also interesting:
Dynapleat by Sawafuji
Orthophase
Podium Sound Model 1 - this one is different in that it uses a large rigid panel with just a few voice coils driving it
Dynapleat by Sawafuji
Orthophase
Podium Sound Model 1 - this one is different in that it uses a large rigid panel with just a few voice coils driving it
Hi,
not to forget the Technics AFP series, models 10, 100 and 1000.
Seemingly such drivers became too expensive to build as the ´motors´ required close matching to not generate additional bending modes on the membrane.
What hasn´t been done so far commercially -afaik- is to use multiple coaxially mounted voicecoils* to create an true digital speaker.
jauu
Calvin
*meaning each voicecoil been driven by a bit-weighted pulse signal current, a direct digital drive - DDD
Besides the reduction of conversion stages in the signal chain -just a power-DAC needed- the coil´s inductance would form the required output filter for the Power DAC.
not to forget the Technics AFP series, models 10, 100 and 1000.
Seemingly such drivers became too expensive to build as the ´motors´ required close matching to not generate additional bending modes on the membrane.
What hasn´t been done so far commercially -afaik- is to use multiple coaxially mounted voicecoils* to create an true digital speaker.
jauu
Calvin
*meaning each voicecoil been driven by a bit-weighted pulse signal current, a direct digital drive - DDD
Besides the reduction of conversion stages in the signal chain -just a power-DAC needed- the coil´s inductance would form the required output filter for the Power DAC.
Seems self-evident that progress in audio has been tied to feedback. In this case, usually motional feedback related to cone motion.
Not a good use of design effort perfecting drivers when factors beyond the control of the enineer's blueprint can modify (that is, screw up) the output. Whatever the source of distortion - manufacturing tolerance, driver distortion, box, room... - corrective feedback aims to fix it.
Always good to hear from Calvin.
B.
Not a good use of design effort perfecting drivers when factors beyond the control of the enineer's blueprint can modify (that is, screw up) the output. Whatever the source of distortion - manufacturing tolerance, driver distortion, box, room... - corrective feedback aims to fix it.
Always good to hear from Calvin.
B.