AudioChainsDB
Marantz

MODEL 50

amplifier

$2,000

Used market: $1,440*

Manufacturer datasheet

Specifications

3 of 5 values have a recorded source
Amp Type
Integrated Stereo Amp·
Channels
2·
Speaker Outputs
·
Power Output Per Channel
{"thdPercent":0.02,"continuousWatts":70,"loadImpedance_ohms":8}, {"continuousWatts":100,"loadImpedance_ohms":4}✓
Min Supported Impedance ohms
4✓

Expert Audio Engineering Commentary

Headroom Notes

70 W into 8 ohms and 100 W into 4 ohms, both stated for 20 Hz - 20 kHz with both channels driven. The 0.02 % distortion figure applies to the 8 ohm load, so it is recorded only there; Marantz does not publish a distortion limit for the 4 ohm rating.

Thermal Behavior

4 - 16 ohms on speakers A or B; 8 - 16 ohms with both sets running. The limit lives in the connection chapter, not in the specification table.

* Estimated with the depreciation fallback (~72% retained value). · checked on 8/5/2026