Audio Database


Pioneer S-07
260,000yen( It is 1 set in two sets, 1995 release)

The speaker system completed as a natural phase system based on the original wave-front control technology of Pioneer, and the network less technology.

A natural phase system is "the enclosure which coincided the voice source of a Woofer and a tweeter and performed theoretical phase doubling",The three-position of "smooth-izing of the electric phase response by a network less technology" and "the form which prevents a wave-front diffraction and fully pulls out the performance of each speaker unit" is considered as the point, and a spread of a uniform sound and a smooth phase response are realized by practicing these.

The 16cm cone type Woofer is carried in low-pass.
Edge form was begun, about all suspension systems, he examined form and materials one by one, and the flattery nature from a minute input is strengthened.
Moreover, the failure factor of an input signal is eliminated as much as possible by carrying out direct connection without a network by the network less technology.

The 3.5cm semi dome shape tweeter is adopted as a high region.
This tweeter is a newly developed HSDOM (Harmonized Synthetic Diaphragm Optimum Method) tweeter which uses a ceramic graphite,Using the finite element method by computers, such as a material of a diaphragm, form, and an edge, it is designed so that each functionality and performance can demonstrate to the maximum extent.

Zinc die-casting with 2.6 times as much specific gravity as aluminum is adopted as the frame of a Woofer, and the flange of a tweeter, it is in them, and the vibration suppression effect is raised to them.
Moreover, the mid ship mounting scheme was adopted as mounting of a unit, and the shake of the magnetic circuit by drive of a cone is prevented.

It is a simple network which uses the capacitor which restricts a low-pass swing to tweeters by a network less technology.

The CGR (Capacitive Gap Reduction) system which made full use of a TAD (Technical Audio Devices) technology is introduced, the unnecessary electrostatic electric charge generated near the signal current is reduced, and high-quality sound-ization by a clean signal is attained.

The baffle board with a thickness of 67mm which begins to delete mahogany with the sufficient acoustic feature to an enclosure from a plank was begun, and a thrust board, the base, etc. are adopted as all.
Moreover, in order to stop the diffraction phenomena of sound, the baffle side is made into the minimum dimension to the magnitude of a unit, and the wave front is controlled by performing a still more peculiar taper treatment.

The enclosure has adopted the design which became the exclusive base and an integral type, and makes it a main unit and the floating structure which uses felt packing between the bases, and the tone-quality transition by installation requirements is reduced.
This floating base can be detached and attached.

The optional exclusive table lamp has also adopted total design and design, and is made for the first time in the inside of 18 degrees, without changing the location of a table lamp.


Rating of a mode
Scheme 2 ways, 2 speaker bass-reflex scheme, a bookshelf type, and a magnetic-shield design (EIAJ)
Using unit For low-pass: 16cm cone type
For high regions: 3.5cm semi dome shape
Impedance 6ohm
Play frequency band 40Hz - 50000Hz
Output sound pressure level 88dB/W/m
The maximum input 100W(EIAJ)
Cross over frequency 4500Hz
Dimensions Width 240x height 468x depth of 340mm
Weight 13.2kg
Adjunct Banana plug
Option: Speaker table lamp CP-07 ( It is 1 set in two sets, 80,000yen)
Dimensions Width 320x height 515x depth of 370mm
Weight 6.2kg