STEREO STAGE NUFORCE STA120
Based on “digital” amplification technology (the correct term is “switching”), the Optoma NuForce SAT120 is an all-metal power stage that benefits from NuForce's unique expertise and technical superiority in the field of design. and Class D amplifier construction. Sleek, compact, and unobtrusive in appearance, the STA120 houses within a powerful compendium of audiophile refinements. Thus, a power supply with a large toroidal transformer provides the necessary power to attack with authority and precision almost all types of loudspeakers while minimizing noise and distortion. In addition, its highly efficient design allows for a substantial reduction in energy consumption, which implies in terms of reliability and ease of location (the STA120 can be installed even in completely enclosed spaces).
In terms of its underlying technology, the Optoma NuForce incorporates a brand-exclusive negative feedback scheme circuitry that forms the cornerstone of its exceptional musicality. Based on a self-oscillating topology, this circuitry - of the PWM type - operates with a switching frequency of 400 kHz that is continuously adjusted to adapt to the input signal, the requirements of the output current and the variations in the impedance of the loudspeakers. The result is worth the effort put forth: incredible speed of response and precision that ensure absolutely natural reproduction of both the most explosive dynamic contrasts and the finest details. In short, the realization of that clean and vital sound that is the foundation of NuForce's reputation.
- Very high performance stereophonic power amplifier.
- PWM circuitry with exclusive negative feedback scheme.
- High efficiency power supply.
- Executed with selected very high quality components.
- Class D operation; 25.5 dB gain.
- Power: 2 x 85W RMS @ 8 Ohm, 2 x 125W RMS @ 4 Ohm.
- Frequency response: 10 - 40,000 Hz,
- Signal to noise ratio: 115 dB.
- Dimensions: 215 x 50 x 320 mm (W x H x D).
- Weight: 3.5 kg.