|39,800yen(around the 1979 time)
The graphic equalizer of 10 band splittings which
operate a tone quality freely and can enjoy making only a them's sound by the
status of the room, or liking of sound.
Center frequency is dividing ten
bands of audio-frequency bands between 1 octaves by making 1kHz into reference
frequency, and a tone-quality control is possible for it.
conventional coil formula, a coil outline becomes large as an electrical
specification changes by the quality of material or it becomes low frequency.
Moreover, if an iron core is small, there is a fault of a dynamic range
For this reason, the large semiconductor inductor of a dynamic
range is adopted as a resonance circuit, and the large performance of a dynamic
range is realized over a perimeter fraction.
Moreover, IC (HA-1457) is used
for the flat amplifier thought as important by a resonance circuit and the
The level control of a slide system volume can carry out
variable continuously in ±10dB in the location of each center frequency.
The muting circuit is built in.
The equalizer switchpoint is
||150mV (a maximum of 11V)
|Distortion (at the time of an equalizer
||0.02% (at the time of an Output power)
|Gain (at the time of an equalizer flat)
||20Hz-20kHz 0 -0.2 dB
|SN ratio (at the time of an Output power)
||87dB (IHF-A network)
|Equalizer center frequency
||Ten elements (1kHz, hub 1 octave space
31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz
1kHz, 2kHz, 4kHz, 8kHz
It corresponds to 12kHz, 16kHz, and 20kHz by change.
|An attached functionality
||Graphic equalizer switchpoint
|The electrical power used
||Power-switch un-interlocking.: One line
||Width 435x height 78x depth of 275mm