|139,800yen(one set, the 1985 release)
The 3 way speaker system by which the low magnetism
leakage design was performed for the correspondence of audio-video age.
DRS (Dynamic Response Suspension) which induces the outstanding
linearity is adopted as each unit.
The permeability of air is high to a
Woofer, the small double twill damper of mechanical resistance is adopted as it,
the newly developed chemical edge is used for a mid range, and the nonlinearity
of back pressure is decreased by the sound control inside a chamber.
Moreover, the tweeter has changed the input signal into the air signal
efficiently by the Mie suspension structure and a new model-like horn.
32cm cone type unit is adopted as low-pass.
A full-range voice coil and a
low range voice coil are prepared for a Woofer, only a super-low-pass signal is
added to a low range voice coil, and the EBD (Electronic Bass Drive) scheme
which has improved low-pass electrically is adopted as this unit.
Moreover, a cut and the subpole of pole piece were installed in the magnetic circuit, the
magnetic-flux distribution was made into the order symmetry, and LDMC (Linear
Drive Magnetic Circuit) which eliminated the nonlinearity of the driving force
by the swing of a voice coil is adopted. This is reducing the swing distortion
to conventional 1 / 2 - 1/3.
Furthermore, the highly precise technology is
supplied over details, such as DRS and an intensity up of a frame.
leakage flux is reduced with the dual magnet scheme.
A 7.6cm dome shape
unit is adopted as a mid range.
The phi76mm beryllium mid range is adopted
as a diaphragm.
Furthermore, much new technology which prevents muddiness of sound, such as double dumping of an equalizer, is introduced.
beryllium ribbon tweeter which Pioneer developed is adopted as a high region.
Leakage flux was reduced with the magnetic shielding cap, and the influence
on the Braun tube is prevented.
The network is carrying out thorough
exclusion of the king falloff which repeats a study with circuitry, an element, and a layout.
The balanced network circuitry (PAT.P) which prevents the
leakage by a sorption and earth line of the counter-electromotive force of a
Woofer is adopted. Moreover, the magnetic material leading to propagation
distortion is eliminated until it results in a screw and a nut,The film
capacitor in which ESR (equivalent series resistance) is lower than the
conventional film a single figure is adopted as a capacitor, and thorough
investigation of low-loss-izing, such as using the
oxygen-free-high-conductivity-copper line of a very thick also for a choke coil
and lead wire, and the low crosstalk is carried out.
The enclosure is
also examined and designed from form and the quality of the material.
high-density needle-leaf tree particle board excellent in the acoustic feature
was used for the front baffle, and diffraction phenomena are eliminated by the
round baffle which gave R to the corner on either side.
While this realizes
the sound field of a natural spread, the transient of inside loud sound is
Furthermore, a symmetrical unit design is taken in so that
a clear image lateralization may be obtained, and it has become a real cabinet
of the craft finish using ebony material.
||3 ways, 3 speakers, a sealing scheme, and a
||For low-pass: 32cm cone type
ranges: 7.6cm dome shape
For high regions: Ribbon type
|Play frequency band
||25Hz - 50000Hz
|Output sound pressure level
|The moment maximum input
|Cross over frequency
||Width 390x height 680x depth of 378mm