Marantz MODEL 50 Premium Integrated Amplifier
Marantz MODEL 50 is a premium, pure-analog integrated stereo amplifier built for listeners who want warm, rich, spacious sound with modern control and timeless Marantz styling. Its precisely engineered 70 watts per channel Class A/B amplifier with Current Feedback topology delivers confident drive, strong grip on speakers, and refined detail at any volume. Inside, Marantz HDAM discrete circuitry (HDAM SA3/SA2) and hand-tuned parts selection by the Marantz Sound Master help create the brand’s signature “Most Musical Sound” with a smooth, engaging presentation.
Designed for real-world systems, MODEL 50 includes a high-quality Moving Magnet phono stage (Marantz Musical Phono EQ) for turntables, plus flexible preamp outputs so you can add a subwoofer, integrate with a home theater, or connect an external power amplifier. With speaker A/B switching, Source Direct mode, Power Amp Direct input, and a low-noise OLED porthole display, MODEL 50 is a high-end stereo hub that makes every source feel elevated—without adding unnecessary digital circuitry. The Marantz MODEL 50 is part of ListenUp's Marantz Amplifiers Collection.
What It’s Good At:
- Delivering powerful, precise stereo performance with 70W/ch Class A/B Current Feedback amplification
- Creating a warm, spacious, “Marantz musical” sound with custom HDAM discrete circuitry
- Making vinyl shine with a built-in Moving Magnet phono input and Marantz Musical Phono EQ stage
- Expanding your system easily with stereo pre-out plus dedicated subwoofer out
- Integrating into advanced setups via Power Amp Direct input and Source Direct listening mode
- Driving two speaker pairs with Speaker A/B switching and premium Marantz speaker terminals
Marantz MODEL 50 Full Specifications:
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Product Type: Pure analog integrated stereo amplifier
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Channels: 2
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Amplifier Topology: Class A/B, Current Feedback topology (Yes)
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Power Output (RMS): 70 W x 2 (8 Ω), 100 W x 2 (4 Ω)
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Frequency Response: 5 Hz – 100 kHz (±3 dB, CD, 1 W, 8 Ω)
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Total Harmonic Distortion: 0.02%
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Damping Factor: 100 (100 and over listed in manual)
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HDAM Version: SA3, SA2
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Power Transformer: Toroidal (Yes)
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High Grade Audio Components: Yes
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Customized Components: Yes
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Symmetric PCB Layout: Yes
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Aluminium Extrusion Heat Sink: Yes
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Tone Controls: Balance (Yes) / Bass (Yes) / Treble (Yes) / Loudness (No)
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Phono EQ: Standard (No) / Marantz Musical (Yes) / Marantz Musical Premium (No)
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Digital Inputs: USB-B (No) / Optical (No) / Coaxial (No) / USB-A (No)
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Linear Drive Power Supply: Yes
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Linear Volume Control: Yes
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Schottky Diodes: Yes
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Input Buffer Amp: All inputs (No) / CD only (Yes)
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Solid Heat Sinks: Yes
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System Block Shielding: Copper (No) / Metal (No) / None (Yes)
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Bottom Plate: Triple (Double Layer Bottom Plate: Triple)
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Low-Noise OLED Display: Yes
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Source Direct: Yes
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Power Amp Direct: Yes
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Audio Inputs: 6
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Phono Input: MM (Yes) / MC (No)
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Audio Outputs: 1
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Balanced In / Out: No / No
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Pre-out / Main-in: Yes + subwoofer / No
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Power Amp Direct In: Yes
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Gold-Plated Cinch (RCA): Yes
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Speaker A / B: Yes
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Speaker Terminals: Marantz SPKT-1+
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Number of Speaker Terminals: 4
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D-Bus: Yes
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Headphone Out: Yes
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Input Sensitivity / Impedance (PHONO MM): 1.4 mV / 47 kΩ
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Input Sensitivity / Impedance (High Level – CD/TUNER/LINE/RECORDER): 185 mV / 16 kΩ
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Input Sensitivity / Impedance (POWER AMP IN): 1.5 V / 15 kΩ
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Output Voltage (PRE OUT): 1.5 V
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Output Voltage (SUBWOOFER OUT): 220 mV
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Maximum Allowable PHONO Input Level (1 kHz, MM): 80 mV
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RIAA Deviation (20 Hz – 20 kHz): ±0.5 dB
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Signal-to-Noise Ratio (IHF-A): PHONO (MM) 87 dB (5 mV input); CD/TUNER/LINE/RECORDER 113 dB (rated output); POWER AMP IN 125 dB (rated output)
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Bass Control Range: ±10 dB at 50 Hz
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Treble Control Range: ±10 dB at 15 kHz
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Available Colors: Silver-Gold, Black
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Metal Front Panel: Yes
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Power Supply: AC 120 V, 60 Hz
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Power Consumption: 220 W
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Standby Consumption: 0.3 W
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Auto Power Off: Yes
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Detachable Power Cable: Yes
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Operating Temperature: 41°F – 95°F (5°C – 35°C)
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Remote Control: RC003PMND
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System Remote Function: Yes
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Maximum Dimensions (W x D x H): 442 x 431 x 130 mm (approx. 17.4 x 17.0 x 5.1 in)
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Weight: 14.2 kg (spec sheet/product page); 31 lb 12 oz / 14.4 kg (owner’s manual)
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Carton Dimensions (W x D x H): 527 x 517 x 255 mm
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Carton Weight (Incl. Product): 17.5 kg
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Warranty: 5-year warranty
Marantz MODEL 50 Q&A:
- What kind of speakers can the Marantz MODEL 50 drive?
- MODEL 50 provides 70W per channel into 8Ω and 100W per channel into 4Ω, giving it the current and control to drive a wide range of bookshelf and floor-standing speakers with confidence.
- Does the MODEL 50 have a phono input for a turntable?
- Yes. It includes a built-in Moving Magnet (MM) phono input using the Marantz Musical Phono EQ gain stage for clear, detailed vinyl playback.
- Can I connect a subwoofer to the MODEL 50?
- Yes. It includes a dedicated subwoofer output and stereo preamp outputs for easy low-end extension and system flexibility.
- Does this amplifier include Bluetooth, Wi-Fi, HDMI, or digital inputs?
- No. MODEL 50 is a pure analog integrated amplifier with no digital audio circuitry or digital inputs, designed to keep operation simple and reduce potential interference.
- What is “Power Amp Direct,” and when would I use it?
- Power Amp Direct lets you use MODEL 50 as a dedicated power amplifier (for example, with an external preamp or in certain home theater integrations) by bypassing parts of the internal signal path.
- Can I run two pairs of speakers?
- Yes. MODEL 50 supports Speaker A/B switching, allowing you to connect two sets of speakers and choose which set plays.
- What does “Source Direct” do?
- Source Direct bypasses tone circuits so your music takes a cleaner path, which many listeners prefer for maximum fidelity and transparency.
- What’s included for control and convenience?
- MODEL 50 includes a low-noise OLED porthole display for visibility, plus an included remote control (RC003PMND) and system remote functionality.
Marantz MODEL 50 Downloads:
Marantz Model 50 Info Sheet
Marantz Model 50 Owner's Manual
