The Nu-Vista 600.2 is a power-house of an amplifier incorporating many elements from our prestigious PRE/PAS/PAM top-range.
After the huge success of the acclaimed and multi award winning Nu-Vista 800.2, it is time to announce the new Nu-Vista 600.2.
Compared to the old Nu-Vista 600, the updated 600.2 now features the full TITAN power amp design including locally decoupled output stage. PCB layout has been drastically reworked and improved. Electrical components have been updated, the 600.2 now uses the same laser trimmed volume control like the 800.2 and the PSU-section has been greatly improved.
We believe that only a true analog amplifier without digital or even WiFi streaming on board can reach the maximum of fidelity, which the concerned music lover is expecting of a Musical Fidelity product. We feel responsible for our name.
The Nu-Vista 600.2 is our latest love letter to strictly analog, discrete, dual mono amplifiers using big oversized toroidal transformers with multi array power supplies and the finest filtering of pre- and power section. And on top, the beautiful Class-A tube stage consisting of highly famed, and by now almost extinct, nuvistor tubes.
Antony Michaelson, the founder of Musical Fidelity and professional musician, always dreamt of making an audio system that sounds like tube and class A amps. Warm and musical, but it also allows the real-life dynamic reproduction of music, especially of big orchestras.
The NU-VISTA by Musical Fidelity range is a magic combo of power and finesse. It represents all of Musical Fidelity‘s technology in making the best, sweetest-sounding amps in the world in a cost-no-object, no-compromise solution. The Nu-Vista 600.2 represents the very best in today‘s amplification.
As we know power is not everything. There is a place for high and lower powered amps, it all depends on the context: the room, the speakers, the source material.
With correct circuit board design and careful layout, just like the 800.2, the Nu-Vista 600.2’s technical performances are astonishing. They measure and sound like a dream. The 600.2 feels calm and smooth, and never loses control of its striking dynamic range and a natural, effortless transient response. It projects lifelike images between the speakers, recreating the tangible and captivating presence of bombastic live music, big orchestras and smaller, intimate jazz performances alike.
Certainly, one of the biggest changes is that we have now fully incorporated our famed TITAN design in the Nu-Vista 600.2, bringing it up-to-par with its bigger 800.2 sibling and the esteemed PRE/PAS/PAM range.
Giving each output device (transistor) a corresponding high current bulk supply capacitor allows more immediate access to stored energy, with much lower impedance path to flow through. This results in better transient response and coincidently provides a degree of improved ripple filtering at higher currents in conjunction with the supply capacitors situated elsewhere. The main supply capacitors are situated right on the rectifiers, also decreasing supply impedance and helping to keep rectification and hum noise away from the high gain PA circuit.
The 600.2 PCB layout has been optimized for lower power, roughly half that of the 800.2, now featuring a sleeker, more refined and subtle “V4” look – with 4 output transistors per channel. The 800.2 features a much bulkier design with 10 output transistors per channel, giving it similar appearance to a “V10” engine.
The Nu-Vista 600.2 is a much bigger update than our previous Nu-Vista 800 to 800.2 reissue.
Smaller changes include component level improvements. The old input switching IC has been changed to relays for better separation and dynamics and only highest quality polypropylene capacitors are used throughout the signal path. A much requested, more significant change is that the 600.2 now also uses our laser trimmed volume control for +/- 0.5dB gain error even at lower levels.
The power amp, preamp and nuvistor stage layout has been significantly revised and improved. Preamp circuits have been removed from the back panel PCB and are now built on a self-screening tray at the top of the unit for less noise and distortion, protected from noisy PA and heavy current power supplies.
Continuing our pursuit for clean and proper power solutions – as we have recently shown with our new Balanced Power Conditioner range and the separate power supply units of the Nu-Vista PRE/PAS/PAM – the Nu-Vista 600.2 now features “NO SWITCH-MODE PSU AT ALL” during operation. A SMPSU is only used in standby mode and for the amplifier this ensures best supply noise performance. Improved digital supplies contribute to better supply rail noise figures.
The new layout comes with big performance gains and saves a lot of space. We can now support two balanced XLR inputs to cater for both Nu-Vista Vinyl and DAC. A balanced XLR preamp output has also been added and all line outputs are now separately buffered, resulting in no interference between devices connected to any of the preamp outputs.
Nuvistor tubes were invented in the 1950s to solve the many shortcomings of conventional tubes. Unlike them, Nuvistor tubes offer very high reliability, low microphony, low noise, consistency from batch to batch, small size, relatively low power consumption and great technical performance.
Unfortunately just as uses for Nuvistor tubes were being explored, the transistor was inven ted and it was ‘game over’ for Nuvistors. The re the matter rested until about fifteen years ago, when Musical Fidelity created the first of its ground-breaking Nu-Vista series.
One famous application was in the famed Neumann U 47 studio microphone. This microphone was highly regarded by artists all over the world, and was used by many top recording artists such as Frank Sinatra, The Beatles, and so on.
| Output | |
| Power | 160W per channel into 8 Ohms |
| 300W per channel into 4 Ohms | |
| 500W peak per channel into 2 Ohms | |
| Voltage | 36 Volts RMS (20Hz - 20 kHz) onset of clipping |
| 147 Volts peak to peak | |
| Current | 50 Amps peak to peak |
| Damping factor | 100 |
| Output devices | 2 pairs per channel |
| Line input | |
| THD+N | < 0.005 % typical, 20Hz to 20 kHz |
| Signal / noise ratio | > 107dB ‘A’-weighted |
| Input impedance | 100 k Ohms |
| Frequency response | + 0, –0.1dB, 10Hz to 30 kHz |
| Connections | |
| Line level inputs | 4 pairs line level RCA connectors |
| 2 pair line level balanced XLR connectors | |
| Line level outputs | 1 pair line level RCA connectors, constant level LINE outputs |
| 1 pair line level RCA connectors, PREAMP outputs for e.g. biamping | |
| Speaker outputs | 2 pairs 4mm banana plug/binding posts |
| Power requirement | |
| Mains voltages | 115/230VAC 50/60Hz (factory pre-set) |
| 100VAC 50/60Hz (alternative) | |
| Consumption | <0.5W in standby mode (orange LED lit) |
| 75W on and idle (blue LED lit) | |
| 600W maximum | |
| Weight | |
| Unit only, unboxed | 36 kg |
| in shipping carton | 44.3 kg |
| Maximum Dimensions | |
| Wide | 483 mm |
| Height on standard flat feet | 187 mm |
| Height on pointed feet | 212 mm |
| Deep (front to back) including terminals | 510 mm |
| Standard accessories | |
| IEC type mains lead | 10-Amp type |
| Remote control | Nu-Vista 600.2 remote |
| Batteries | LR03 or AAA, manganese alkaline type 2 off |
| Felt pads | 4 off |
| Spike Foot | 4 off |
| Spike Foot Cups | 4 off |
| Remote Feet | 4 off |
