The Hitachi HCA-6500 Stereo Control Amplifier, introduced in 1978, boasts impressive technical specifications for its era. With a frequency response of 20Hz to 20kHz and remarkably low total harmonic distortion of 0.005%, it delivers high-fidelity audio reproduction. Its input sensitivity of 2.5mV for MM and 150mV for line sources ensures compatibility with various audio sources, while offering a signal-to-noise ratio of 83dB for MM and 90dB for line inputs, resulting in clear and detailed sound. Additionally, its output capabilities of 150mV (line), 1V (Pre out), and 4V (Pre out Max) provide flexibility for connecting to external amplifiers or recording devices. The Hitachi HCA-6500 stands out as a reliable and capable amplifier, embodying the quality craftsmanship of vintage audio equipment.

The Hitachi HMA-6500 Stereo Power Amplifier, launched in 1979, stands as a testament to vintage audio engineering excellence. Delivering 50 watts per channel into 8Ω with a wide frequency response of 5Hz to 100kHz, it ensures powerful and accurate sound reproduction across the audible spectrum. Its low total harmonic distortion of 0.02% and high signal-to-noise ratio of 115dB contribute to pristine audio quality, capturing subtle nuances with exceptional clarity. With a damping factor of 50 and support for speaker load impedance ranging from 4Ω to 16Ω, it maintains tight control over connected speakers, offering dynamic and controlled sound reproduction. The Hitachi HMA-6500 represents a pinnacle of vintage power amplifier design, combining robust performance with enduring reliability.

 

The Hitachi FT-8000 FM Stereo Tuner, manufactured between 1979 and 1981, represents a pinnacle of vintage FM tuning technology. Its standout features include a digital synthesizer system with quartz lock, ensuring precise and stable tuning across a wide frequency range from 76 MHz to 90 MHz. Utilizing a microcomputer-controlled interface, it offers convenient features such as automatic tuning and 6-station preset memory, enabling quick access to preferred stations. The tuner's front-end section incorporates a dual-gate MOS FET RF amplifier and double tuning stages, achieving exceptional sensitivity and selectivity, while effectively suppressing radio noises with an RFAGC circuit. Furthermore, its advanced design includes a PLL IC with pilot signal cancellation for stereo reception and a high-quality de-emphasis circuit for accurate audio reproduction. The Hitachi FT-8000 FM Stereo Tuner is not only a superior performer but also a versatile component, with additional functionalities such as a quartz clock display and TV trap circuit for interference prevention

Combining the Hitachi HCA-6500 Stereo Control Amplifier, HMA-6500 Stereo Power Amplifier, and FT-8000 FM Stereo Tuner creates a comprehensive and high-fidelity stereo system. The HCA-6500 provides precise control over audio sources with its wide range of inputs and low distortion, ensuring accurate signal reproduction. The HMA-6500 delivers ample power to drive speakers with its 50 watts per channel output and high-quality amplification circuitry. Together, they form a formidable audio backbone, capable of delivering immersive sound across various genres and listening environments. Paired with the FT-8000 FM Stereo Tuner, users can enjoy the convenience of digital tuning, preset memory, and reliable reception, enhancing the overall listening experience. With their vintage charm and exceptional performance, the Hitachi HCA-6500, HMA-6500, and FT-8000 stereo set represent a timeless combination for audiophiles seeking both quality and functionality. 

All componets are in exellent working condition. All components look great wth minimal usage visible across the device. 

Everything has been tested and the whole set functions perfectly. All lights work 

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.005%

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

Signal to noise ratio: 83dB (MM), 90dB (line)

Output: 150mV (line), 1V (Pre out), 4V (Pre out Max)

Dimensions: 435 x 78 x 275mm

Weight: 3.5kg

Year: 1978

Voltage: 220V

Cables : Not included 

Power output: 50 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 100kHz

Total harmonic distortion: 0.02%

Damping factor: 50

Input sensitivity: 1V

Signal to noise ratio: 115dB

Speaker load impedance: 4Ω to 16Ω

Dimensions: 435 x 153 x 306mm

Weight: 9.4kg

Year: 1979

Voltage: 220V

Cables : Not included 

Type    FM digital synthesizer tuner

Circuit system    Microcomputer control

Digital synthesizer system

RF stage with MOS FET

Five electron tuned front end

Quadrature detection

PLL MPX

Receiving frequency    76 MHz to 90 MHz

S/N50dB sensitivity (IHF / new IHF)    Mono : 4.8 μ V/18.7 dBf

Stereo : 45 μ V/38.2 dBf

Total harmonic distortion rate (400 Hz)    mono:0.12%

stereo:0.12%

Capture ratio    1.0dB

Effective selectivity    80dB

Intermodulation interference ratio    95dB(2.5MHz)

S/N    mono:75dB

stereo:72dB

Stereo separation    50dB

Frequency characteristic    20 Hz to 15 kHz + 0.2 -0.6 dB

Image interference ratio    110dB

IF interference ratio    94dB

AM suppression ratio    60dB

Antenna    300 Ω unbalance

75 Ω equilibrium

Power supply voltage    100 VAC, 50Hz/60Hz

Rated power consumption (Electrical Appliance and Material Control Law)    17W

External dimensions    Width 435x Height 78x Depth 369 mm

Weight    6.1kg

Voltage: 220V

Cables : Not included 

Working condition: Fully Working (See pictures for the cosmetic condition of this lot)

Missing or damages: Minor Usage Marks