The Marantz MA-23 is a monaural power amplifier from the Music Link series, manufactured between 1994 and 1996 in Japan. It focuses on delivering a music-centric performance rather than emphasizing the technical mechanisms. The amplifier operates in Class A/B mode and provides a rated output of 50W at 8 ohms with a total harmonic distortion factor of just 0.01%. Its frequency response spans from 10 Hz to 100 kHz with a variation of +0 -1dB, ensuring a wide audio range is covered. The signal-to-noise ratio, measured using the A-weighted curve, reaches an impressive 110dB, enhancing the clarity of the audio output. Input sensitivity is rated at 1V with an impedance of 47k ohms. The power consumption of the MA-23 is approximately 55W, and it features a robust build with a copper plated chassis and gold plated output terminals. Its compact dimensions measure 250 mm in width, 84 mm in height, and 215 mm in depth, while it weighs in at a solid 6 kg. The original price for a pair was around 2,700 DM, which reflects its position in the market during its production years.
