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| GOTO UNIT SG-370BL |
320,000yen(One set. It put on the market in February, 1978 and afterwards.
)
350,000yen(One set. It put on the market in May, 1979 and afterwards. )
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The driver unit for mid-high ranges using a
beryllium diaphragm.
The beryllium diaphragm is adopted as a diaphragm.
A beryllium is a very light element and has a hardness more than double
of titanium . However, by the element as it was, it was unstable, and when
the upper crystal broke, it was about the hangup that poisonous gas occurs.
In order to improve this, in the GOTO unit, what molded the powder of beryllium
oxide is used and it is made the shape of a dome shape by carrying out
the special process of this.
The Mylar (FRP) edge is adopted as an edge part.
The magnet of 140mmphi which uses a permendur in large quantities is
adopted as a magnetic circuit.
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| Scheme |
The driver unit for mid-high ranges
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| Music power |
5W |
| Impedance |
8ohm-16ohm |
| Output sound pressure level |
116dB |
| Play frequency band |
400Hz - 20kHz |
| The total magnetic flux |
1,100,000maxwell |
| Flux density |
24,000gauss |
| The optimal crossover |
500Hz - 5kHz |
| Gap scheme |
Permendur |
| Horn |
S series |
| Diaphragm |
A beryllium dome, a Mylar FRP edge
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| Dimensions |
Diameter 140x depth of 130mm |
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