Pioneer S-HE7

Commentary

This speaker system was developed using new high-sensitivity technology based on the wave front control technology cultivated through the development of the vertical twin system and high-speed technology.

In the low range, two woofers using 14 cmALCC (alginic acid composite cone) for the diaphragm are mounted.
This diaphragm is mixed with alginic acid fiber extracted from seaweed such as kelp and made into fiber in order to increase the bonding force of high rigidity material and pulp, and the bonding force is greatly improved by this alginic acid fiber acting as a binder.

A 2.0 cm dome type tweeter is used for the high range.
The diaphragm uses new ceramic carbon produced from a composite material of pure ceramic carbon of 99.9% purity and ceramic graphite of 99.99% carbon purity.
In addition, a new shape cross-shaped W. F. (wave front) director is adopted in the front, and wave surface, sound image localization, sound field sense, etc. are controlled at the listening point by wave surface control technology.
In particular, the new horn has excellent vertical and horizontal orientation, and can be placed horizontally or vertically.
In addition, to prevent the director from generating unnecessary vibration, packing with damping effect is added around the director.

The magnetic circuit of each unit is a magnetic shielding type with a canceling magnet.

A full midship mount is used to prevent the vibration of the unit from being transmitted to the baffle, resulting in an accompanying sound and dulling the playback sound. Both the woofer and the tweeter are firmly fixed inside the enclosure to prevent unwanted vibration by not transmitting the vibration of the unit to the baffle.

In order to enhance the bass reflex effect of the enclosure, a double duct is adopted to improve sound image localization by centralizing sound source positions and symmetrical positions, and the duct opening is rounded to reduce wind noise and diffraction of the duct.
All 6 sides, including the back side, are finished in a flower-pear style with Red-dark brown color, and the diffraction of sound is reduced by the round baffle.

Model Rating

Method	2-way, 3-speaker, bass reflex system ・ Bookshelf Type ・ Magnetic Protection Design
Units Used	For low band : 14 cm cone x2 For high band : 2 cm dome type + W. F. director
Impedance	6 Ω
Playback frequency band	50 Hz to 40000 Hz
Output sound pressure level	93dB/W/m
Max Input	100W(EIAJ)
Crossover frequency	4000Hz
External dimensions	Width 250x Height 340x Depth 256 mm
Weight	7.1kg