Mellomtonen blir ikke mer åpen av det. Jeg tror dette går på elektronikk. Sensitivity 90 dB/1 m 2,1 Watt, (Merk at det er en annen voltstyrke enn vanlig)på papiret virker den tungdreven, men min Orion driver den fint opp til et visst volum, men så høyt spiller jeg aldri.
Nei de er ikke aktive. Det er en annen modell som er helt lik, tror jeg med A i betegnelsen.
Her står det noe om delefilteret:
The cross-over unit
A very sophisticated, low-loss passive FSR cross-over
unit (FSR = Fast Signal Response) adjusts the combination
of electrostatic unit and valve output stage
(TCI 1 RE), and of electrostatic unit and repeater
(TCI 2 E), to match the output of the other sub-systems
in the loudspeaker.
The circuit boards of these cross-over units feature a
large-area copper layer on the top surface whose sole
purpose is to act as the earth conductor.
The copper tracks on the underside connect the components
with each other. This layout ensures that the critical
earth reference potential is not falsified by the large
signal currents which flow. The usual voltage losses
caused by narrow conductor tracks do not occur in this
design, which means that much higher currents can
safely be used. Undesired effects on signals such as
inter-modulation or cross-talk between the individual
tracks are also minimised.
The components of the cross-over unit are extremely
low-resistance types, and are designed to minimise losses.
The large capacitance required is implemented in the
form of several small capacitors wired in parallel, as this
arrangement reduces series inductivity and resistance,
and also improves slew rates. All these design features
are aimed at obtaining maximum possible signal fidelity.
To reduce the distortion which can arise with large currents,
virtually all the coils are of the air-core type.
High-quality cable is employed for all internal wiring
inside the cabinets.