|43,800yen(one-set, around the 1980 time)
The 3 way speaker system by a metal diaphragm which
inherited the technology of HS-630 and HS-430 and was developed.
of a 25cm metal veneer cone type Woofer is carried in low-pass.
alloy of 170micro of board thicknesses is used for a diaphragm, and in order to
prevent the weight saving of a cone, and low-pass asymmetric vibration, the
structure of cap cone type which increases a synthetic of the whole oscillating
object is adopted. This is realized by adopting the gathered edge of a hold
without finger of a large swing, and a high compliance property as an edge.
M-6504 of a 6.5cm metal veneer cone type mid range is carried in the mid
The 6.5cm aluminum alloy veneer is used for the diaphragm, and
extensive dispersibility is realized while expanding a waveguide-plunger
Moreover, the high compliance free edge excellent in
moisture resistance is adopted as an edge, fo is lowered, and the relation with
a Woofer is made smooth.
The heat-resistant voice coil is adopted as a voice
H-2504 of a 2.5cm metal dome tweeter is carried in the high
The titanium diaphragm of a high hardness is used and the
input-proof is improved with the heat-resistant voice coil.
independent succession variable level control is carried in a mid range and high
The enclosure has adopted the bass-reflex scheme by mahogany
||3 ways, 3 loudspeaker bass-reflex scheme, and a bookshelf type
||For low-pass: 25cm cone type (L-2503)
For mid ranges: 6.5cm cone type (M-6504)
For high regions: 2.5cm dome
||38Hz - 20000Hz (-15dB anechoic chamber)
|The maximum input
||100W (music signal peek)
|Output sound pressure level
||92 dB/W/m (8-ohm conversion)
|Cross over frequency
|Enclosure internal volume
||Width 315x height 575x depth of 335mm