EVO3 NOVA
FEATURES
- Suitable for all audio or AV systems
- RFI reduction 80dB
- 12 optimised power cleaning circuits remove Common and Differential Mode mains noise
- 8 independent outlets for source components
- 4 independent high current outlets for power amps, subwoofers, active speakers etc..
- DC cancellation through sine wave rebalance
- 216’000A instantaneous protection
- Fully star-earthed network
- Solid core Ohno Continuous Cast copper silver-plated internal wiring with FEP virtual air dielectric
- Supplied with IsoTek’s award winning EVO3 Premier power cable
- UK, EU, US, AU & CH outlets available
Differential Mode mains noise is created by all electrical appliances – everything with a power supply, in fact. This includes your microwave oven, your television and your computer, as well as every hi-fi component you own.
Common Mode mains noise is often referred to as RFI – transmitted frequencies that surround us but we cannot see. For example, imagine how much data is transmitted by smartphones and tablets; cheap power cables act as aerials (antennas) for these unwanted frequencies.
IsoTek’s power cleaning circuits are designed to reduce impedance whilst remaining safe as well as correcting well into the audio frequency bands. This is not only a judgment from sound electrical engineering, but it also follows the codes of electrical safety, which are independently assessed.
Many power cleaning systems simply place a standard filter design in a box with all outlet sockets joined together in series one after the other, thus connected equipment cross contaminates and the purpose of the product is lost.
Each socket connects directly back to the PCB and is serviced by IsoTek’s unique power cleaning technologies.
Internal wiring also uses high purity coppers combined with silver plating, with either Fluorinated Ethylene Propylene (FEP) dielectric or IsoTek’s Virtual Dielectric of Air (VDA), where a FEP tube is wound around the conductor before an extruded FEP dielectric protects this construction giving unrivalled performance and the ultimate low resistance, high performance internal power delivery system.
The protection circuit has two primary functions, one to preserve itself and the second to step in gradually as any problem increases, with the ability to act very fast should an extreme condition occur. The protection circuits also protect the filters and the filters assist the protection in the initial stage. Unlike many protection devices these assist sound quality as well as providing protection. Studies suggest this problem is not subtle and is frequent. The disturbing challenge is the 1’000 to 6’000V range. It is likely most protection systems do very little good and probably cause sound degradation.
This system also eliminates Differential Mode noise cross contamination between outlet sockets, as all connected devices will corrupt the supplied clean power upon consumption throwing back Differential Mode noise. It is vital that this noise isn’t allowed to affect another component’s performance.
The guiding principles for IsoTek circuits are driven by Kirchhoff’s two current laws, a simple analogy would be that for every litre of water placed into a water distribution system we would expect to get the same out.
To put it another way, Kirchhoff and Gauss described how seemingly impossible problems could be resolved by the concept of a town. If traffic flows on a circular orbital road around the town there is no effect on the town. However, if traffic enters the town, then there will be an effect on the town, and however many cars that enter eventually have to leave. The structure of that town will have either a positive or negative effect on that migration. In electronics this is also true. We must totally respect the signal path as, whether one wishes it or not, ultimately everything will be in the signal path to a greater or lesser degree.
IsoTek’s internal wiring synergizes with the range of IsoTek power cables. One critical but overlooked area is maintaining commonality of design and material properties though an audio wiring loom, be it signal carrying cables or your power cable network.
It is impossible to get more than 100% out of the mains supply. The very principle of AC power is that it doesn’t store energy in the transmission system. It is therefore impossible to store energy in an AC system by the very principles by which it works. There can be no so-called power reserve, thus a power reserve within an AC circuit in the truest sense of the word does not and cannot exist.
Power reserve would require the voltage to increase as ohms law insists it must, saying a circuit doesn’t sag isn’t a reserve of power. The AC waveform goes between maximum and minimum points at 50 Hz in 10 mS, it then swings to the maximum negative value. At 20 mS a full cycle is achieved. Therefore, in fact the average values of an AC waveform is zero. Only as a power wave can it be positive, this is due to the law of squared negatives. It looks like a ballooned sine wave where the value of 45 degrees is 0.5 not 0.7071 from a trigonometric table. Were this only a voltage wave it would have a long-term value of zero! As far as energy storage is concerned zero is the value of stored energy.
Direct Current resistance (DCR) will cause sag. To put it in other words, a system has to be developed which does not limit the power reserve of the power station, meaning a circuit needs to have extremely low resistance whilst maintaining sufficiently high inductance. When done correctly and in perfect balance the inductance is virtually zero at 50/60 Hz and the Direct Current resistance (DCR) is also very close to zero. Therefore, an ideal filter circuit must maintain zero Ohms resistance DC (or very close) and considerable AC resistance to noise above 50/60 Hz. Despite statements to the contrary, this is precisely where correctly specified materials matter most. Whilst some might consider these ‘exotic’ they represent a critical and important part of the function and appropriate to use. Remarkably IsoTek filter designs can maintain very low resistance at 50/60Hz but have very high amounts of noise cancellation above that frequency.
Most AC circuits are reactive – produce a reaction either from the power drawn or the circuit itself, put simply they are not pure resistors and behave like a capacitance and resistance or an inductance and resistance. In an ideal world the only allowable impediment is resistance and ideally this needs to be extremely low. A dilemma, do you want high transient power, or do you want heavy filtration – amazingly you can have both, but one must have components of the very highest quality, which are designed specifically for purpose with totally correct architecture. This is extremely complex and has resulted in the design of specialist parts; these do not exist outside the world of specialist power engineering and are unique to IsoTek designs.
This is particularly useful for joining multiple units together using our System Link cable available in EVO3 Initium, EVO3 Premier, EVO3 Sequel and EVO3 Optimum quality.
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DESIGN
EVO3 Nova is a twelve-way full system mains power cleaning solution comprising four high-current outlets, featuring IsoTek’s unique Direct-Coupled© technology, a system capable of delivering 3’680W of continuous power, ideal for power amplifiers, mono-block amplifiers, subwoofers, and active loudspeakers. This circuit provides optimal high-current low impedance filtering while fully maintaining transient and dynamic performance.
The EVO3 Nova is an innovative component with a power cleaning and distribution system measuring 445mm in width, 370mm deep and 185mm high. It is a significant step up from both the Aquarius and Sigmas models. Nova really is a full-scale power cleaning system incorporating twelve power cleaners in one box all output sockets are independent, each one with its own dedicated power cleaning network; these dramatically reduce both Differential Mode and Common Mode noise. Cross contamination of connected components is also kept to a minimum due to the multiple power cleaning stages for each output socket. Most power filters join output sockets together, running each in series. This is an error as Differential Mode Noise created by your connected electronics will cross contaminate from one output socket to the next. The electrical architecture and design of Nova is dramatically superior.
There are four high current low impedance outlets, rated at 16A, delivering 3’680W at 230V or 1’840W at 115V, these are suitable for power amplifiers, active loudspeakers or sub woofers and feature a light version of the Titan’s Direct-Coupled© circuit. The eight remaining medium current outputs rated at 10A are designed for source components. These feature IsoTek’s unique Adaptive Gating© technology that autosenses the connected load, thus giving the ideal optimal clean power based upon power draw. The power cleaning network is more sophisticated than that of Aquarius or Sigmas models. Nova is ideal for large scale audio or audio-visual installations.
KERP© (Kirchhoff’s Equal Resistance Path) ensures equal resistance and equal power delivery to all outlets. The internal wiring is of the highest standard; ultra-pure Ohno Continuous Cast copper solid core conductor strands with silver-plating offers low resistance and high amperage. A Fluorinated Ethylene Propylene (FEP) helix is wound around the conductor before an extruded FEP dielectric protects the conductor and creates a Virtual Dielectric of Air (VDA). This construction gives unrivalled performance and gives the ultimate low resistance, high performance internal power delivery system. Furthermore, 108,000A of instantaneous protection is provided, safeguarding valuable equipment via IsoTek’s unique sequential and repeatable protection system.
Also built into the Nova, is the Syncro unique DC-cancelling circuit that rebalances the mains sine wave on the zero volts line, to dramatically reduce/silence transformer hum; the circuit synchronizes the mains supply to provide a perfectly symmetrical sine wave, which also delivers significant sonic improvement when used with any hi-fi separates.
Nova is high quality design, highly functional and an excellent upgrade for a complete high-end audio or audio video system improving sound stage, three-dimensional imaging, bass articulation, control and a sense of extended frequency range and openness. IsoTek’s award winning Premier power cable is also included.
The internal wiring of IsoTek products synergizes with the range of IsoTek power cables. One critical but overlooked area is maintaining commonality of design and material properties though an audio wiring loom, be it signal carrying cables or your power cable network.
