OTTO/Sanyo DCA-1201 Stereo vintage vahvistin

Ihan siisti ja täysin toimiva laite. Javanilainen 100v versio ja muuntaja mukaan. Aika harvinainen vahvistin hienolla soundilla.

OTTO/SANYO DCA-1201 ￥74,800(around 1977)

Commentary

A preamplifier that expands the dynamic range and reduces distortion.

By directly connecting the equalizer and main amplifier, the noise and distortion generated by the tone amplifier are eliminated. This simplifies the amplification stage by 1/3, improving the signal-to-noise ratio and reducing distortion.

It is also possible to insert a tone amplifier.

It uses independent power supplies for the left and right.

Model Rating

Model Integrated Amplifier

Circuit method Differential input, all stages directly connected, pure complementary OCL

Effective output (both channels driven) 75W+75W(8Ω, 20Hz～20kHz)

Total Harmonic Distortion 0.05% (at rated output)

0.01% (-3dB)

Frequency Response 10Hz to 40kHz +0 -1dB

Output Bandwidth (IHF) 5Hz to 45kHz (THD 0.05%)

Damping Factor 60 (20Hz to 20kHz, 8Ω)

Output terminal Speaker direct, A, B: 4Ω to 8Ω

Speaker direct+AorB: 8Ω to 16Ω

Input Sensitivity/Impedance Phono1/2: 2mV/50kΩ±5kΩ

Tuner, Aux, Tape1/2: 160mV/40kΩ±5kΩ

Phono maximum input 220mV (1kHz, RMS)

Output Level/Impedance Tape rec 1/2:160mV

Frequency Response RIAA deviation ±0.2dB

Signal to noise ratio (IHF-A) Phono: 76dB

Aux: 106dB

Tone Control Bass:±10dB(50Hz/100Hz)

Treble:±10dB(10kHz/20kHz)

power supply AC100V, 50Hz/60Hz

Rated power consumption 160W

External dimensions Width 440 x height 148 x depth 350 mm

weight 14kg