Audio Database

The

Marantz SH-A20 208,000yen(around the 1983 time)

Description
 
The Integrated Amplifier developed not aiming at a technology but aiming at the sound near [ it is infinite to a human being's sensitivity, and ] it for the technology.

Unlike a general high gain equalizer stream composition, full-scale MC head amplifier with the super-low-noise transistor selected carefully is carried.
Moreover, by the high precision equalizer element and a whole page perfect push-pull circuit, phone amplifier realizes a wide band and a low-noise, and also can enjoy the play which employed efficiently the personality which each man-month cartridge has with the Dolo selector.

The AB class DC power amplifier part puts into practice the Low-TIM design original with a Marantz which suppresses dynamic distortion to the minimum from the input stage of matched-pair dual FET to the output stage of a three-step Darlington connection with a super high fT transistor.

The mass toroidal transformer and the super audio capacitor are adopted as a power-source part.

The mic mixing circuitries including both the tapeses dubbing functionality, and a phone and tuner compact disk in which all sources and mixing are possible are carried.


Rating of a mode
Form Stereo Integrated Amplifier
Output power (20Hz - 20kHz) 130W+130W (8ohms)
THD 0.02% or less (20Hz - 20kHz, 8ohms)
Frequency characteristic 5Hz-100kHz±1dB
RIAA deflection 20Hz-20kHz±0.5dB
Input sensitivity Phono MM:2.0mV
Phono MC:0.11mV
High Level:150mV
SN ratio (IHF-A) Phono MM:84dB
Phono MC:78dB
High Level:94dB
Power dissipation 350W (Electrical Appliance and Material Control Law)
Dimensions Width 461x height 193x depth of 345mm
Weight 16.5kg