Audio Database

KA-3080R
Commentary

This pre-main amplifier has been simplified and shortened thoroughly and has a simple configuration.

In the power amplifier section, the final stage is composed of discrete power transistors with sufficient margin, and the power supply section is strengthened to improve the low impedance drive capability.

The pure signal ground line is used so that the ripple of the AC power supply and various noise components do not adversely affect the audio signal by allowing only pure signal to flow through the main ground line.

Logical flow construction is employed to minimize the signal path.
In addition, the printed circuit board is also fixed soft so that it is less susceptible to vibration.

It is equipped with a source direct circuit so that you can bypass these circuits when you do not use tone control, balance control or subsonic circuits.

It is equipped with a loudness control and MM phono equalizer.

Model Rating
Type Integrated amplifier
Rated output 130W + 130W (4 ohm, EIAJ)
60W + 60W (8 Ω, 40 Hz to 20 kHz, both channel operation, THD0.06%)
Total harmonic distortion factor 0.06% (20 Hz to 20 kHz, 8 Ω, 35W)
0.01% (1 kHz, 8 Ω, 70W)
Damping factor 42(50Hz)
Frequency characteristic CD, Tuner, AUX, Tape : 5 hz to 100 khz + 0 to 3 db
Equalizer deviation 20 Hz to 20 kHz ± 1 dB
Maximum allowable input MM:120mV/0.5%
Signal-to-noise ratio (IHF66) Phono MM:77dB
CD, Tuner, AUX, Tape : 105 dB
Tone control Bass : ± 10 dB (100 Hz)
Treble : ± 10 dB (10 kHz)
Loudness control (Volume-30dB) +9dB(100Hz)
Input Sensitivity / Impedance Phono MM : 2.5mV/47k Ω
CD, Tuner, AUX, Tape : 200mV/47k Ω
Adaptor In:200mV
Output Level / Impedance Tape Rec : 200mV/220 Ω
Power supply voltage 100 VAC, 50Hz/60Hz
Rated power consumption (Electrical Appliance and Material Control Law) 170W
Maximum external dimensions Width 440x Height 123x Depth 395 mm
Weight 8.0kg
Attachment Remote control