Audio Database


Pioneer S-402AV
98,000yen(one-set, around the 1990 time)

The speaker system developed in order to reproduce the tone quality which is full of the feeling of sound field like a theater.
It is a vertical twin with the stream composition of having added the subWoofer, and the design was arranged with 40 type projection television of Pioneer put on the market those days.

The vertical twin system which allotted two Woofers focusing on the tweeter is adopted. This reproduced rich sound field and the clear image lateralization has been obtained.

The 20cm cone type Woofer is adopted as super-low-pass, and an 18cm cone type unit is adopted as low-pass.

It has composition which employed the W.F. director as the 2.5cm dome shape tweeter in the high region.
This director has controlled the energy response with a Woofer on the time base, and also performs the directive control by horn form, and is coinciding the wave front of the sound of each unit on a listening point.
Moreover, the neodymium magnet is adopted as a magnetic circuit.

For every unit, the network gained separate independence, and is arranged, and also the network board of a Woofer is reducing the influence of magnetic as a floating structure.

A round baffle is used for an enclosure and it is stopping the diffraction phenomena of sound.
Moreover, the tweeter is mounted into the baffle board and is suppressing the influence by internal sound pressure.

Rating of a mode
Scheme 3 ways, 4 speaker bass-reflex scheme, a Tallboy type, and a magnetic-shield design
Using unit For super-low-pass: 20cm cone type
For low-pass: 18cm cone type x2
For high regions: 2.5cm dome shape +W.F. director
Impedance 6ohm
Play frequency band 33Hz - 40000Hz
Output sound pressure level 91dB/W/m
The maximum input (EIAJ) 150W
Dimensions Width 268x height 1174x depth of 355mm
Weight 34.5kg