Audio Database GOTO UNIT SG-38W 160,000yen(one-set, around the 1979 time) Description 　 The cone type Woofer for professional of 38cm aperture. The flat cone is adopted as a diaphragm, the lightest-weight cone material is pressed in this class, and the hardening by special penetration material is given. Moreover, aluminum is used for a voice coil, and consideration is added to the diameter of a coil so that a tone-quality fall may be prevented at the time of a large swing. Moreover, it has prevented separating from a magnetic field by putting how to consider it as a careful numeration also on coil width or an edge damper. Rating of a mode Scheme 38cm cone type Woofer unit Nominal size 38cm Play frequency band 30Hz - 600Hz The minimum resonance frequency 27Hz Cross over frequency fo-500Hz Output sound pressure level 110dB Music power 35W V.C. an impedance 8ohm-16ohm The total magnetic flux 1,500,000maxwell Flux density 13,500gauss The maximum Dimensions 435mm Total weight 24kg