Audio Database


Pioneer ELeVEN S-11TX
53,000yen( It is 1 set in two sets, 1990 release)

The small vertical twin speaker system which introduced the wave-front control technology.

By adopting the vertical twin system which installed the Woofer up and down, a feeling of sound field and a clear image lateralization are realized.
furthermore -- having introduced the wave-front control technology -- "adjusting the energy time response of a Woofer and a tweeter on a time base", "controlling a directivity", "agreeing electric phases, such as a network,", and "baffle form,More real sound field and lateralization are realized by controlling four points of control" for a wave-front diffraction strictly.

The 14cm cone type Woofer using the oven cone of the newly developed pulp containing an aramid fiber is adopted as low-pass.
The material which mixed the aramid fiber in pulp is being used for this diaphragm. By this, the waveguide-plunger motion band of a Woofer is expanded and the unnecessary natural oscillation is reduced.
Moreover, the frame of the unit is made into form which is a product made from aluminum die-casting, and is that the sound resistor on the back of a cone is adopted.

The 2cm dome shape tweeter which employed the W.F. (wave front) director is adopted as a high region.
W.F. By the director, in order to coincide an energy time response with a Woofer, the diaphragm location of a tweeter is controlled and the directive control is performed by considering it as still more smooth horn form.
Moreover, rigidity is sharply improved by putting a honeycomb-shaped rib into the flange of a tweeter. Thereby, the resonance of the flange was suppressed and little play sound of dirt is realized.
The ceramic carbon of 99.9% of a carbon purity is adopted as a diaphragm.

The baffle serves as form around [ form ] it went greatly in order to reduce the diffraction phenomena of a bass.
The enclosure serves as Chinese quince tone finish of the reddish dark brown colour in the 6th page also including a rear view.
Moreover, since the floating of the duct fraction on the back is carried out, it is reducing the muddiness by the cross modulation emitted from the panel vibration and the duct of a back board.

The main-unit design was matched as the option and there was the speaker base (CP-11) which adopted special formed plywood.

W.F. Woofer

Rating of a mode
Scheme 2 ways, 3 speaker bass-reflex scheme, a bookshelf type, and a magnetic-shield design
Using unit For low-pass: 14cm cone type x2
For high regions: 2cm dome shape +W.F. director
Impedance 6ohm
Play frequency band 50Hz - 40000Hz
Output sound pressure level 89dB/W/m
The maximum input (EIAJ) 100W
Dimensions Width 204x height 376x depth of 265mm
Weight 6.5kg
Option Speaker base CP-11 (It is 8 pieces and is 1 set. , 7,500yen)