|BOSE 901 WestBorough
|440,000 yen(around the one-set and 2004 time)
The speaker system developed for the purpose of reproducing the impression
obtained from music before reaching to an extreme of the superiority or
inferiority of the physical characteristic.
It is built in patent theories,
such as "direct/reflecting", "flat power radiation", and an "active
A.M.E. (acoustic matrix enclosure) is adopted as the
In order that this may suppress the exact reappearance and distortion of
heavy low-pitched sound, the core of a cabinet is equally divided into
nine correctly. The error of the dimension of each part store is finished
on the scale of "1/1000 inch or less of a design value."
prevented equalization of air capacity, and generating of standing-wave.
Thereby, a "sound-absorbing material" like the cabinet of a common
speaker becomes unnecessary, and makes it possible to use all internal
niter in sound.
The greatest sonic energy is released applying braking to movement before and after corn paper, and controlling the amplitude by tuning of the bass-reflex
port with which the "braking of resonance" effect with air of the cabinet
uniformly defined for every unit and the back were equipped.
port (rear active air column) calculates even the energy efficiency of air, and
three the directivity and the compatibility of a phase which are arranged and
are compressed by direction of a unit, and is arranged.
Moreover, form is
designed based on the same hydrodynamics as being used for the injection tip of
a jet plane, preventing the turbulence generated by high-speed injection of air,
it had the capability to send out air at the speed of 100km/h momentarily, and
the play which was clear and was excellent also in the amount of Oto at the
response is realized.
Nine 11.5cm corn type units are used for the
Since a unit is finished uniformly, in order to roll the voice
coil of a unit as correctly as possible, the computer program which controls 126
places is developed.
The impedance curve of the speaker which managed to the
quantity of few adhesives and was made impossible [ arranging ] is made to
The gilding screw terminal type is adopted as a speaker
The active equalizer is carried.
||Direct / reflecting speaker system
||For [ all the ] zones: 11.5cm corn type x9
|Sonic energy distribution
||Reflective ingredient: 89%
Direct ingredient: 11%
||270W (rms, IEC268-5)
||30Hz - 18kHz
|Terminal tie-line cross-sectional area
||0.75-5.5 square milimeters
||Width 538x height 322x depth of 344mm
|Output load impedance
||0.09% or less (at the time of THD 1kHz and 1V input)
|a room -- acoustic
||Mid-Bass: 225Hz, ±6dB
||Mid-Treble: 3kHz, ±6dB
||3kHz, -6 dB/oct
|Rated power consumption
||Width 330x height 70x depth of 125mm
||Insulator 4 piece/1
Audio pin cable x2
||It is a stand every exclusive floor. PS-9 (2 sets [ 1 ], 40,000yen)