Anyone have extensive experience with this phenomenon? For those who don't know what I'm talking about, AlNiCo is known to lose some of it's magnetic strength when subjected to a sufficiently large voicecoil current. This loss is supposedly as much as 3dB, though 1.5 dB seems much more common.
A few questions/thoughts:
Is this loss always a bad thing? I'd think that you'd lower the sensitivity of the driver but increase Qes. You might also see some top end issues, but how might they manifest themselves?
How much is Qes affected by a loss of charge? One might assume that a 3dB sensitivity loss would correspond to a doubling of Qes, and less with lower loss levels
Are there any other effects I'm not considering?
A few questions/thoughts:
Is this loss always a bad thing? I'd think that you'd lower the sensitivity of the driver but increase Qes. You might also see some top end issues, but how might they manifest themselves?
How much is Qes affected by a loss of charge? One might assume that a 3dB sensitivity loss would correspond to a doubling of Qes, and less with lower loss levels
Are there any other effects I'm not considering?