High-End multi-channel amplifier for uncompromised Home Theater sound.


  • High power – 55 Watts (x8) channels
  • Compact size and modern construction
  • Proprietary high-speed, negative feedback design
  • Very high efficiency PWM circuit topology
  • Available in stylish Black finish



High-End multi-channel amplifier for uncompromised Home Theater sound.

The Optoma NuForce MCA-18 multi-channel amplifier was developed for the audio enthusiast as an audiophile-grade alternative to the plethora of consumer-grade amps being offered for Home Theater applications. Offering quality parts throughout and advanced, high-ef-ficiency switching amplifier operation, the MCA-18 delivers genuine NuForce performance and value.

Technology & Craft

The MCA-18 delivers a full 110 Watts into 4-Ohms per channel. Sharing technology with NuForce’s award-winning V3 mono amplifiers, it renders all of your recordings and sound tracks with thundering lows, crystalline highs, and a warm, tube-like midrange – all in perfect balance.
Proprietary feedback circuitry operates as the cornerstone of the MCA-18’s sound quality. A self-resonant design, the 400 kHz PWM switching frequency constantly adjusts to the input signal, output current demands, and loudspeaker impedance variations. Incredible speed and accuracy ensure that the most explosive dynamics and the minutest of details convey the kind of life-like sound upon which NuForce’s reputation rests.
To be sure, the MCA-18 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-18’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 output55W x 8Ch @ 8 Ohm
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




MCA-18 Support