Audio Database

The

GOTO UNIT CF-1 3way: 65,000yen(around the 1978 time)
4way: 75,000yen(around the 1978 time)

Description
 
It is the channel divider designed for using a GOTO unit 4 ways.

Although certain-factor-1 was designed for 4 ways, it was used from three ways and the using of upgrading to four ways was also supported.

NF type with the shoulder property that a barrier property is sharp and it is sufficient is adopted as the circuitry synopsis.

The component partses selected carefully are adopted.

It was not dared to make the printed circuit board of the filter part into the plug-in system, but the fixed mount type is used for it. This is stopping the noise by contact resistance etc.

The voltage stabilizer is adopted as a power-source part.



Rating of a mode
Form Channel dividing amplifier
Splitting band L channel: 220Hz or less
M channel: 220Hz - 1kHz
MH channel: 1kHz - 5kHz
H channel: 5kHz or more
Cross-over-frequency deflection Less than ±4%
Damping characteristics 18dB/oct
Passage belt gain - 1dB (M, MH, and H channel are with an output regulator)
Input impedance 50kohm
Output load impedance 300ohms or less (at the time M,MH,H channel of an output maxima)
Maximum permissible input 3Vrms
Distortion 0.15% or less (at the time of 1V input)
S/N ratio 90dB or more (each channel input 1 V:00)
Power source AC100V, 50Hz/60Hz
Power consumption About 1.5 VA