Musical Fidelity Nu-Vista 800.2 Stereo Integrated Amplifier
Maximum expression of the concept of power amplification and preamplification in a single chassis Signed by veteran British label Musical Fidelity, the Nu-Vista 800 stereo integrated amplifier has just been thoroughly updated in the form of the Nu-Vista 800.2. Preserving the spectacular presence of the original model, marketed in 2013 and discontinued in 2021 due to supply problems of key components, this new “superelectronics” maintains the use of Nuvistors to offer objective benefits and absolutely sensational musicalitys. There are three news Built-in highlights: a state-of-the-art front panel and function display, a rewind of the power transformers to reduce noise, and an overhaul of the power supply circuitry.
With regard to mechanical construction, it exhibits a rigidity and solidity without compromise which make it virtually immune to external vibrations and electromagnetic interference. On an electrical level, we find the starting point, as in the Nu-Vista 800, in the DNA of the monumental power stage Titan, one of the most iconic and revolutionary amplifiers developed by Musical Fidelity in its entire history. Thus, in the Nu-Vista 800.2 a locally decoupled output stage which allows each power transistor (there are 5 pairs for each channel) to have its own high current capacitor, a configuration whose appearance is reminiscent, as the capacitors in question are mounted on a dedicated printed circuit board, of a V10 engine. This scheme provides a more immediate access to the stored energy, with a much lower impedance path to flow through, the result being a better response to transients and a filtered topin conjunction with the capacitors of the power subsystem, of ripple with high currents.
Another fundamental design element of this superb integrated amplifier is the joint use of Nuvistors and assembly technology of discrete components in surface (SMD)a strategy that results in a incredibly low distortion over enormous bandwidth, extremely low noise and response curve at virtually flat frequency. As for output power concerned, the Nu-Vista 800.2 delivers 2×330 watts continuous into 8 ohms or 2×500 watts continuous into 4 ohms, and is also capable of delivering peaks of 2×1,000 watts into 2 ohms. Are spectacular figures are complemented by the capacity to supply currents of 120 amperes, thus guaranteeing the compatibility with any existing acoustic box.
