It is mentioned in the specs that a low cut is in the mic.
http://recordinghacks.com/pdf/beyerdynamic/M260_DB_E_A3.pdf
Is it done by a lower inductance transformer or an RL circuit in parallel with transformer primary?
Grampian GR ribbons use a lower primary inductamce ribbon transformer than for example Coles 4038. So Grampians sound more bright. (See a previous post for measured primary inductance).
No matter what, all these were done before Pleiades filters or Pleiades transfomers.
The nice thing about Pleiades filters is that the inductor or resistor etc can fit inside an XLR female to male adapter and therefore the filter be used with any mic. Even omnidirectional moving coil microphones to compensate for Fletcher-Munson or voice effort curves so that bass heaviness is reduced.
Pleiades experience has showed so far that a low inductance primary may not sound as good as an R,L filter and then a normal inductance primary. Is this a reason the M260.80 has a reputation of being slightly less great than the M260?
How would the M260.80 sound terminated externally (ie to the secondary of the M260 transformer) by a Pleiades (130Ω,40mH) filter?
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