A high-end multi-channel amplifier for uncompromising sound


  • High power – 278 Watts x 8 channels
  • Modest size and modern construction
  • Proprietary high-speed, negative feedback design
  • Very high efficiency PWM circuit topology




A high-end multi-channel amplifier for uncompromising sound.

The Optoma NuForce MCA-20 multi-channel amplifier offers the dedicated enthusiast eight channels of signature NuForce sound. The MCA-20 was developed as an audiophile-grade alternative to the plethora of consumer-grade amps being offered for Home Theater applications. With its top-quality parts and advanced, high-efficiency switching technology, the MCA-20 delivers genuine NuForce performance and value.

The MCA-20 delivers a full 278 Watts into 4-Ohms per channel and owes its pedigree to NuForce’s award-winning V3 series of mono amps. In keeping with its stellar relatives, it renders all of your recordings and sound tracks with thundering lows, crystalline highs, and a warm, tube-like midrange – all in perfect balance.


Technology & Craft

The MCA-20’s proprietary feedback circuitry operates as the cornerstone of the MCA-20’s remarkable sound. A self-resonant design, the 400 kHz PWM switching frequency constantly adjusts to the input signal, output current demands, and loudspeaker impedance variations, resulting in superb speed and accuracy. The MCA-20’s crystalline reproduction of the most explosive dynamics united in harmony with the minutest of sonic details guarantees that you’ll always experience the same life-like presentation upon which NuForce’s reputation rests.
To be sure, the MCA-20 is destined to find its place as the driving force in a great many music and A/V systems. When it comes to mating with today’s modern Home Theater components, the MCA-20’s power, transparency and sophistication defy the competition at its price point. Where sound performance and value matter, nothing less will do.


Connections – Input8 x RCA
Connections – OutputFive-way binding posts
Connections – ControlN/A
Power output278W x 8Ch
Recommended headphone impedanceN/A
Balanced modeN/A
Frequency response10Hz – 50kHz
Sensitivity0.89 V to rated power
Signal to noise ratio (SNR)91dB
Total harmonic distortion + noise ( THD + N)0.01%
Power supply90V~264V
Weight (kg)15
Dimensions (W x D x H) (mm)432 x 340 x 80





Optoma NuForce AVP18/ MCA18 awarded “The best design of the amplifier / receiver” at the HiFi & High End Show in Moscow. "
“The dynamism and effortless energy of the amp is extremely exciting. Even when you listen at perfectly normal and domestically-friendly levels, it has an unruffled air that some of the single-box competition struggles to match.” "

MCA-20 Support