Trio KA-8700/ KR-6600/ OTTO-SANYO DCA-1201 усилитель

OTTO/SANYO DCA-1201 ￥74,800(around 1977) ЦЕНА 490e 100V + понижающий трансформатор.

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

Trio (Kenwood) KA-8700 цена 650е 100V + понижающий трансформатор.

Model Rating

Type

Integrated amplifier

Rated output
(phono → sp terminal, both channel operation)

20 Hz to 20 kHz :

110W + 110W (8 Ω)

1kHz:

150W + 150W (4 Ω)
115W + 115W (8 Ω)

Total harmonic distortion factor (8 Ω)

Phono → sp terminal :

0.015% (at rated output, 20 Hz to 20 kHz, Volume-20dB)

Tuner, aux, tape → sp jacks :

0.015% (20 Hz to 20 kHz at rated output)
0.008% (1 kHz at rated output)
0.008% (20 Hz to 20 kHz at 1/2 Rated Output)

Cross modulation distortion factor

Tuner, aux, tape → sp connector : 0.003% (at rated output, 8 Ω, 60 hz : 7 khz = 4 : 1)

Frequency characteristic

Tuner, aux, tape → sp jacks (straight DC on) : DC ~ 450 khz -3dB
Tuner, aux, tape → sp jacks (straight DC off) : 18 Hz to 450 kHz -3dB

Output Bandwidth (IHF)

Tuner, aux, tape → sp terminal : 5 Hz ~ 70 kHz (8 Ω at 0.03% distortion rate)

Damping factor

100 or more (tuner, aux, tape → sp jacks, DC ~ 20 khz, 8 Ω)

Input Sensitivity / Impedance

phono1 (MM) → sp Terminal : 2.5mV/50k Ω
phono2 (MC) → sp Terminal : 0.1mV/100 Ω
Tuner, aux, tape → sp terminal : 200mV/50k Ω

Phono maximum allowable input
(1 kHz, 0.015% distortion factor)

phono1 (MM) → rec out : 230 mV
phono2 (MC) → rec out : 9 mv

Phono RIAA deviation

20 Hz to 20 kHz ± 0.2 dB

Signal-to-noise ratio (IHF-A)

phono1 (MM) → sp terminal : 90 dB
phono2 (MC) → sp terminal : 70 dB
Tuner, aux, tape → sp connector : 105 dB

Output Level / Impedance

Tape rec pin : 200mV/330 Ω

Tone control
(tuner, aux, tape → sp jacks)

Bass : ± 7.5 dB (100 Hz)
Treble : ± 7.5 dB (10 kHz)

Loudness control

+ 9 dB (100 Hz, tuner, aux, tape → sp jacks, Volume -30dB)

Transient response

Rise time : 0.8 μ s (tuner, aux, tape → sp terminal)
Slew rate : ± 150 V / μ s (tuner, aux, tape → sp terminal)

Power outlet

Power switch interlock : 2 systems, 100W
Power switch not linked : 1 system, 400W

Power supply voltage

100 VAC, 50Hz/60Hz

Rated power consumption

280W (Electrical Appliance and Material Control Law)

External dimensions

Width 440x Height 153x Depth 407 mm

Weight

17.5kg

Kenwood KR-6600 Stereo Receiver (1976-78) HIND 450e 230V

Specifications

Tuning range: FM, MW

Power output: 56 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 50kHz

Total harmonic distortion: 0.3%

Damping factor: 45

Input sensitivity: 1.5mV (mic), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 65dB (mic), 70dB (MM), 90dB (line)

Output: 150mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 518 x 151 x 365mm

Weight: 16.3kg

Year: 1976