|96,000yen(around the 1971 time)
A large-sized floor type 3 way speaker system.
PW-38F which is the 38cm cone type unit which adopted the large-sized
magnetic circuit is adopted as low-pass.
PM-16B of a 16cm cone type unit
is used for a two-piece parallel at the mid range.
The horn type unit is
adopted as a high region. The unit has adopted program-transfer-7 put on the
market alone and has improved directional characteristics by the square-shaped
exponential horn made from aluminum die-casting.
Moreover, the aluminum
light alloy is used for a diaphragm and the weight saving of vibration system is
The mid range and the high region carry the switchpoint type
level control of a three-step switching.
In accordance with liking, three
kinds of switchings, Increase, Normal, and Decrease, are possible.
Using an enclosure as perfect closed mold, the board thickness is using
a 30mm thing.
The top layer serves as finish which employed the grain of the native wood
||3 ways, 4 speakers, a sealing scheme, and a
||For low-pass: 38cm cone type
ranges: 16cm cone type x2
For high regions: Horn type
|Play frequency band
||20Hz - 20000Hz
|Output sound pressure level
|The maximum input
||Width 600x height 960x depth of 445mm