MBL
Magnetostatic Super Tweeter
Over the 28
mm dome a new magnetostatic driver is used as a super tweeter. The decision to
use this design is the result of some fundamental physical considerations. For
the representation of frequencies exceeding 30 kHz in an authentic way only a
ribbon tweeter, electrostatic or, as in this case, a magnetostatic transducer
can be considered. Ribbons and electrostats have disadvantages compared to a
genuine magnetostat. For example an electrostat requires a separate high
voltage power supply to the transducer and has a smaller dynamic range as
compared to a magnetostat. A ribbon tweeter does not offer the longterm
stability and has a very narrow sound dispersion.
Only the
magnetostat comprises all the advantages such as:
Extremely
low mass, resulting in a perfect transient response.
High
dynamics transparency and fidelity in detail
No partial
oscillation
Good
radiation characteristics
Linear
frequency range up to over 50 kHz
Accustically
neutral foil - no sonic signature
Constant
impedance
Very high
long-term stability
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