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| GOTO UNIT SG-17TT/A |
115,000yen(one set and February, 1978 or subsequent ones)
125,000yen(one set and May, 1979 or subsequent ones) |
The horn type tweeter unit which changed and changed
the diaphragm into the titanium dome and the Mylar (FRP) edge based on SG-17PS
The horn part is a hyperbolic curve with the hole-was-made structure about
the aluminum round bar, and is united with the driver. By this horn, the
perfect horn loading started the diaphragm and the air impedance is uniformly
applied to all the frequencies.
Moreover, by A type, the horn is changed and the
cut-off frequency has become 2.5kHz.
The edgewise volume voice coil
which used the aluminum ribbon line is adopted as a voice coil.
The
permendur is used for a magnetic circuit.
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| Scheme |
Horn type tweeter unit |
| Music power |
5W |
| Impedance |
8ohm-16ohm |
| Sound pressure level |
113dB |
| Frequency characteristic |
2.5kHz - 25kHz |
| The total magnetic flux |
350,000maxwell |
| Flux density |
23,000gauss |
| The optimal crossover |
4kHz or more |
| Gap synopsis |
Permendur |
| Horn |
SG-17 TT:S-2000,Aluminum round bar
SG-17TTA:S-2500 |
| Diaphragm |
Titanium FRP edge |
| Dimensions |
Diameter 125x depth of 150mm |
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