Marantz Model 50 Integrated Amplifier

MODEL 50

Pure Analog Integrated Stereo Amplifier

Modern, yet timeless.

An evolution 70 years
 in the making. Warm, rich, and spacious sound. Elegant to behold. Marantz 50 series strikes a perfect balance between timeless and modern.

For those who choose every component carefully, a pure and powerful amplifier is essential. MODEL 50 is the ideal integrated amplifier. With 70 watts per channel of unique Marantz current-feedback power and HDAM SA-3 circuitry, MODEL 50 drives loudspeakers with total control. Six analog inputs, including a high-quality MM Phono stage, make it the centerpiece of streamlined and complex stereo systems alike.

• Fully Analog: No digital audio circuitry simplifies use and reduces audible interference.
• Eminently Powerful: Current Feedback Class A/B amplification maximizes speaker capability.
• Hyper Dynamic Amplifier Modules: Unique discrete amplifier circuitry outperforms ICs used by others.
• Rich Connectivity: A full suite of inputs and outputs for your sources, subwoofer, and even an extra power amplifier.
• Multiple Speaker Outputs: Easily switch between two different connected speaker pairs.
• Marantz Musical Phono EQ: Hear details in your vinyl records like never before. 
• Tone Controls: Dial in your sound to suit your style.
• Luxurious Artisanship: Craft and style meet the most musical sound.
• Porthole Display: Easily see your volume level from a distance.
• Five-Year Warranty: Our confidence in performance is your confidence in your investment.

Powerful and Precise Class A/B Amplifier

Even difficult to drive loudspeakers will sound effortless with the high-current, dual-device amplifier in MODEL 50. By using two parallel output transistors per channel rather than one, MODEL 50 delivers substantially higher current to loudspeakers than previous models in this class. This technique results in sound that is more effortless, dynamic, and lifelike than models typically found in this price range.

Six Analog Inputs

With a collection of available analog inputs, MODEL 50 can accept audio from myriad source components and includes upgraded connectors for CD and Phono inputs.

MM Phono

A built-in moving magnet phono stage is perfectly tuned to reveal details in your vinyl you never knew existed.

Subwoofer Out

Want more bass? Simply connect a powered subwoofer to the dedicated RCA output.

Stereo Preamp Out

MODEL 50 grows with you. Stereo preamp outputs leverage discrete HDAM design with external amplification.

Five-Year Warranty

Marantz is built with care. A five-year parts and labour warranty protects your investment in the Most Musical Sound.

Current Feedback Amplification

Current feedback amplification is a well-known, Marantz-original circuit technology, thoughtfully designed to match the requirements of hi-res music for wide-bandwidth, high-speed reproduction. Marantz current feedback amplifiers reduce the need for phase compensation by minimizing negative feedback. This simplifies the signal path and results in excellent transient response and superb sonic transparency across the full bandwidth. Unlike conventional voltage feedback topology, current feedback also makes the power amplifier capable of driving difficult loudspeaker loads, meaning MODEL 50n is the ideal amplifier for a very wide range of loudspeakers.

Hyper Dynamic Amplifier Modules (HDAM-SA3)

While many brands claim unique engineering in sensitive and analog circuits, most use commonly available integrated op-amps in critical signal paths. Those op-amps can compromise audio integrity and limit design ingenuity. Marantz developed an entirely unique replacement for integrated circuits using ultra-high-quality discrete components. Marantz HDAM circuitry outperforms traditional op-amps both in the listening room and the laboratory. Very high-speed signal handling dramatically improves bandwidth. Clever amplification design minimizes distortion and ideal layout silences noise. Ultimately, the flexibility a fully discrete solution provides us the freedom to engineer the ideal basis for extraordinary performance. MODEL 50n utilizes the upgraded HDAM SA-3.

Marantz Musical Phono EQ

Since our first product, the Audio Consolette, we’ve maintained our commitment to vinyl with the Marantz Musical Phono EQ stage. This version of Marantz Musical Phono EQ uses two-stage amplification, allowing less gain per stage for lower distortion. MODEL 50 combines Marantz HDAM technology with JFETs in the input stage, providing high input impedance that eliminates the need for AC coupling capacitors and vastly simplifies the signal path, dramatically improving the signal purity overall.

High-Precision E-Vol Electronic Volume Control

MODEL 50 uses an ultra-precise electronic volume control system that adjusts both the circuit gain and the output voltage. This system maintains high dynamic range and limits noise across a far broader volume range than traditional systems. More traditional integrated amplifiers use basic potentiometers which can suffer from poor channel balance and increasing noise and distortion over time.

Marantz SPKT 1+ Speaker terminals

Ensure a perfect bond to your loudspeaker cables with our custom binding posts, which ensure ideal connectivity while shielding from inadvertent short circuits.

Discrete Headphone Amplifier

For exquisite private listening, MODEL 50’s output is designed using fully discrete HDAM SA-2 circuitry to ensure your headphones sound as warm, spacious, and clear as you would expect from your loudspeakers.