Takeshi Godai (former manager of the Panasonic speaker manufacturing factory) established Onkyo in april 1946 with the intention of addressing what he felt was a lack of satisfactory Japanese-made dynamic speakers. The word “onkyo” means “sound acoustics” in Japanese, and is the origin of a bold, simple, and concise brand image - Osaka Denki Onkyo K.K.
Onkyo unveiled the Grand Scepter GS-1 in 1984, an all-horn-scheme speaker system designed by Hiroyuki Yoshii that was emblematic of the company’s ongoing pursuit of ultimate sound. The speaker was based on completely new theories of audio design and measurement and was evaluated highly in both domestic and overseas markets. An equally impressive power amplifier, the Grand Integra M510 was also introduced in 1984 as a partnering component. In 1991, a few years after its initial release, Hi-Fi professionals in France selected the GS-1 as recipient of the Joseph Leon Award. The Grand Scepter GS-1 has an all-horn configuration. The horn-loaded speaker has the characteristic of having good transient characteristics in principle, but it also has the disadvantage of having distortion in many time domains (multipath ghost distortion, reverb distortion, etc.). At Onkyo, theoretical analysis revealed that the horn-loaded horn type has very little high-order harmonic distortion in principle compared to other methods, and the ideal speaker system is realized by complete control of the horn-loaded horn speaker over a long period of time. Research and development was carried out. Multipath ghost distortion and reverb distortion are not necessarily unpleasant distortions, so they were sometimes used to create sounds, but Gran Scepter eliminates these distortions for the correct expression of music. Technical data: 2-way, 3-speaker, all-horn system | Power 300W (EIAJ) | Peak power 2000W | Frequency range 20Hz-20kHz | Impedance 8ohm | Dimensions: 630*1060*615 mm | Weight: 117kg.
