Marantz MODEL 50 - Premium Integrated Stereo Amplifier

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:

• Product Type: Pure analog integrated stereo amplifier
• Channels: 2
• Amplifier Topology: Class A/B, Current Feedback topology (Yes)
• Power Output (RMS): 70 W x 2 (8 Ω), 100 W x 2 (4 Ω)
• Frequency Response: 5 Hz – 100 kHz (±3 dB, CD, 1 W, 8 Ω)
• Total Harmonic Distortion: 0.02%
• Damping Factor: 100 (100 and over listed in manual)
• HDAM Version: SA3, SA2
• Power Transformer: Toroidal (Yes)
• High Grade Audio Components: Yes
• Customized Components: Yes
• Symmetric PCB Layout: Yes
• Aluminium Extrusion Heat Sink: Yes
• Tone Controls: Balance (Yes) / Bass (Yes) / Treble (Yes) / Loudness (No)
• Phono EQ: Standard (No) / Marantz Musical (Yes) / Marantz Musical Premium (No)
• Digital Inputs: USB-B (No) / Optical (No) / Coaxial (No) / USB-A (No)
• Linear Drive Power Supply: Yes
• Linear Volume Control: Yes
• Schottky Diodes: Yes
• Input Buffer Amp: All inputs (No) / CD only (Yes)
• Solid Heat Sinks: Yes
• System Block Shielding: Copper (No) / Metal (No) / None (Yes)
• Bottom Plate: Triple (Double Layer Bottom Plate: Triple)
• Low-Noise OLED Display: Yes
• Source Direct: Yes
• Power Amp Direct: Yes
• Audio Inputs: 6
• Phono Input: MM (Yes) / MC (No)
• Audio Outputs: 1
• Balanced In / Out: No / No
• Pre-out / Main-in: Yes + subwoofer / No
• Power Amp Direct In: Yes
• Gold-Plated Cinch (RCA): Yes
• Speaker A / B: Yes
• Speaker Terminals: Marantz SPKT-1+
• Number of Speaker Terminals: 4
• D-Bus: Yes
• Headphone Out: Yes
• Input Sensitivity / Impedance (PHONO MM): 1.4 mV / 47 kΩ
• Input Sensitivity / Impedance (High Level – CD/TUNER/LINE/RECORDER): 185 mV / 16 kΩ
• Input Sensitivity / Impedance (POWER AMP IN): 1.5 V / 15 kΩ
• Output Voltage (PRE OUT): 1.5 V
• Output Voltage (SUBWOOFER OUT): 220 mV
• Maximum Allowable PHONO Input Level (1 kHz, MM): 80 mV
• RIAA Deviation (20 Hz – 20 kHz): ±0.5 dB
• 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)
• Bass Control Range: ±10 dB at 50 Hz
• Treble Control Range: ±10 dB at 15 kHz
• Available Colors: Silver-Gold, Black
• Metal Front Panel: Yes
• Power Supply: AC 120 V, 60 Hz
• Power Consumption: 220 W
• Standby Consumption: 0.3 W
• Auto Power Off: Yes
• Detachable Power Cable: Yes
• Operating Temperature: 41°F – 95°F (5°C – 35°C)
• Remote Control: RC003PMND
• System Remote Function: Yes
• Maximum Dimensions (W x D x H): 442 x 431 x 130 mm (approx. 17.4 x 17.0 x 5.1 in)
• Weight: 14.2 kg (spec sheet/product page); 31 lb 12 oz / 14.4 kg (owner’s manual)
• Carton Dimensions (W x D x H): 527 x 517 x 255 mm
• Carton Weight (Incl. Product): 17.5 kg
• 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