JVC Announces Pulsating Sphere Speaker

Entire surface of 12-sided dodecahedral speaker emits sound, creating such a natural, ideal audio field that the listener is barely aware of the speaker

JVC announces the development of a "Pulsating Sphere" speaker with properties very close to the ideal sound source, and applied for 17 related patents. For more than 36 years JVC's Sound Technology Research Labs have worked toward such an ideal sound source for a natural, near perfect sound field, since JVC launched its first sphere speaker "GB-1" in 1967.

This technology uses the entire surface of the Pulsating Sphere speaker as an emitter. With its 12-sided dodecahedral design it has the ideal structure to create this size of multi-sided polyhedron sphere. For this reason, the compact ball-shaped speaker has the same frequency characteristics in every direction, faithfully reproducing the original sound source and sound field, so much so that the listener is barely aware of the speaker.

Main Feature

1. Natural, ideal sound-field reproduction from 12-sided* ball -shaped compact speaker
With a diameter of 10 cm, about 4", the speaker is divided into twelve 5-sided sections, each, excluding the bottom, are driven dynamically by 11 drivers, realizing high-power for the speaker's compact size. Sound coverage is uniform in every direction in range up to 10 kHz, varying by less than ±1 dB. This results in an unprecedented natural sound field.

2. Linked diaphragms permit entire speaker surface to act as emitter
The JVC developed linked diaphragm construction utilizes the entire surface of the speaker as an emitter, with eleven 5-sided segments linked only at their edges. This eliminates effects from a frame or cabinet, and results in a clear sound without distortion.

3. Wide, flat frequency range thanks to Weibull-curve diaphragm
The diaphragms have a "Weibull curve" shape optimized using computer analysis. Plastic reinforced with stiffening fibers, flat frequency characteristics and low distortion result in a clear presence without hotspots. This also results in a wide frequency range.

4. Double neodymium magnets give high magnetic-flux density of one Tesla
With two high energy density neodymium magnets, the equal-diameter speakers produce a high magnetic-flux density of one tesla. Thus, thanks to the magnetically held and driven linked-together diaphragms, the speakers reproduce clear sound across a wide range.

5. Orthogonal double-suspension construction stably supports edge-linked diaphragms
The new two layer right-angled orthogonal suspension has good hardness but avoids fixed resonances, leading to highly accurate drives. Using this technology, JVC succeeded in driving the linked diaphragm precisely, as if it were breathing.

By JVC