Of the Haut Rendement
Concept led by Jean Hiraga, Gérard Chrétien et al. with the magazine L’Áudiophile in 1976, with the firm conviction that low-power tube or solid state amplifiers could feed large size audio speakers.
While The Miniaturization
Was being experimented in Europe and the United States, the concept of ever-increasing the size, loudspeakers was being developed in Japan. Interestingly the Japanese were frequent users of the famous Altec drivers, especially the woofer 416 and some duplex units
or coax, although there are Japanese brands of exceptional quality as Goto, Allen or Onken. These drivers have the uniqueness to offer an efficiency superior to the 100 dB’s @ 1w @ 1m with ideal to work with low powered high quality amplifiers.
founder of Onken
Was one of the pillars of the Haut Rendement in Japan and who opted for the designs of enclosures “Bass UltraReflex” (originally designed by Peter L. Jensen). The Ultra Bass boxes were very successful, surpassing the open baffle and phase reverse horn designs. The Onken deliver powerful bass without any distortion, but can be delicate when music demands it. The box is used as a sound wave controller and not to “amplify” the sound.
We have experimented
With Onken boxes and with Altec drivers for over three decades. We built our first loudspeaker in 1980, faithfully following Koizumi's designs and Jiang Hiraga prescriptions, using a 15" woofer and Audax HD17HR17 midrange and compression driver horn tweeter. We are committed to the use of five dedicated amplifiers and highly accurate electronic crosovers.