Audio Database INFINITY Reference 50 70,000yen( one-set, around the 1993 time) Description �@ The speaker system of the Tallboy type which adopted the double Woofer drive scheme. A 20.3cm cone type unit is adopted as low-pass. The IMG (Injection Molded Graphite) cone which was combining polypropylene and a high rigidity graphite fiber with the diaphragm material, and raised a moderate internal loss and intensity is adopted. The cone type unit which adopted a 12.7cm IMG cone is adopted as the mid range. The IMG cone adopted as the mid range chose the mixed ratio of polypropylene and a graphite fiber, and has attained high rigidity by the low-mass. Furthermore, the dust cap which strengthens rigidity is adopted as the cone center which a physical stress concentrates. The EMIT-R type unit which is an advanced type of the EMIT type tweeter developed by the technology original with Infiniti is adopted as the high region. A planar diaphragm 3cm in diameter is adopted, and the Tran Gent property, low distortion, and wide-range play which are the special features that an EMIT type tweeter is big are realized. Two gilding input terminals (low-pass, high region) are carried, and the metals foot of the letter of a spike is attached. Rating of a mode Scheme 3 ways, 3 loudspeakers, a sealing scheme, and a floor type Using unit For low-pass: 20.3cm cone type For mid ranges: 12.7cm cone type For high regions: EMIT-R type Frequency band 44Hz - 40000Hz, �}2.5dB Allowable input 150W Output sound pressure level 90dB/W/m Cross over frequency 300Hz, 4000Hz Impedance 6ohms Dimensions Width 266.7x height 838.2x depth of 250.8mm Weight 14.7kg