Descripción

Marantz PM-80 Amplifier Class A Used

In addition to a large-sized power transformer, the special edition electrolytic capacitor of 18,000 micro Fx2 is adopted as a power-source part.
Moreover, the OFC line of a very thick is adopted as a speaker circuitry or a power cord.

In order to stop the rectification noise generated when changing an alternating current into a direct current, the noise-killer circuitry is carried.
The RF noise near 1MHz is intercepted from several 100kHz, and reservation of the tone quality without muddiness is aimed at.
Furthermore, it has succeeded in increasing a low-pass feeling of power by lowering the primary side circuit impedance of a power source.
Moreover, the noise is thoroughly eliminated by leading about and the careful circuitry of a product line.

A power stage is the stream composition which made the power transistor of Pc-100W which was rich in the linearity the parallel push pull, and is raising the gain as a three-step Darlington connection.
Moreover, the copper shielding board was mounted on the power transistor, the radiation from a transistor and an oscillation were suppressed, and the influence on a very small signal is eliminated thoroughly.
Power output: 100 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 70kHz

Total harmonic distortion: 0.008%

Damping factor: 150

Input sensitivity: 0.25mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 72dB (MC), 86dB (MM), 96dB (line)

Channel separation: 65dB (line)

Dimensions: 420 x 146 x 334mm

Weight: 13kg

Year: 1991

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