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ISOL-8 MiniSub Chroma
*Mains conditioning products for audio visual systems
Isol-8 MiniSub Chroma
The MiniSub Chroma combines the architecture of the VMC1080 and the acclaimed MiniSub Wave to bring pure power to AV systems in one convenient package.
ISOL-8 MiniSub Chroma
Video, low and high current loads all need different treatment to allow a quality AV system to operate at peak potential. The same separated filter topology found across our high performance and audiophile products forms the basis of the MiniSub Chroma allowing each equipment type to deliver peak performance.
One outlet has a special broadband Transmodal filter, implemented with custom magnetics, designed to sink noise from your video display's hard working power supply. This can improve picture detail and reduce motion artefacts.
For other low current loads, such as source and video playback components, there are three other outlets each with a separate filter network.
Separate filters are the feature that made the original MiniSub such a ground breaking product. It reduces system component cross contamination, stopping mains borne noise from one system component affecting others.
Unlike most other conditioners, which only deal with common mode noise, the video and low/med power outlets can suppress both common and differential mode noise, without shunting noise to ground thanks to our Transmodal filter topology.
For more demanding loads, like amplifiers, the separate high power section has a multistage filter using custom wound components with very low impedance. This cleans current hungry, noisy components effectively without squashing dynamic performance.
The MiniSub Chroma is hand crafted for outstanding build quality. We engineer our products rigorously to provide unbeatable performance that will last a lifetime. Inside the quality casework you will find the same carefully auditioned polypropylene capacitors, Mundorf OFC inductors, high grade connectors, and custom ISOL-8 chokes that are found in our high end audiophile products. You will also have the peace of mind that comes with our spike and surge protection. All ISOL-8 products are designed and manufactured in the UK and come with a five year guarantee in the UK.
The MiniSub Chroma is engineered to give your AV system an effective system wide upgrade with no compromise in audio pace, rhythm and timing. The clean, stable power supply it provides allows you to enjoy each and every performance delivered at maximum potential.
For further information download an E-Brochure here
SPECIFICATION
| Number of available outlets: | 6 (1 video display. 3 low/med current. 2 high current) |
| Type of outlets available: | 13A British chassis sockets |
| European Schuko sockets | |
| 15A US sockets | |
| Standard Mains Inlet: | 10A IEC fused at 10 Amps (cable not supplied) |
| Dimensions: | 444 x 85 x 305mm (W x H x D) excluding connectors |
| Product Weight: | 7.5Kg |
| Construction: | Steel chassis with black finish. |
| Silver Aluminium front panel (Black optional) | |
| Mains Voltage: | 230VAC version for 220-240VAC |
| 117VAC version for 100-127VAC | |
| Maximum Continuous Current: | 4 Amps for video display power outlet |
| 6 Amps any one low/med power outlet | |
| 6 Amps across all low/med power outlets | |
| 10 Amps any one high power outlet | |
| 10 Amps across all outlets |
Transmodal Technology
In order to understand ISOL-8 Transmodal technology, it is necessary to visit some basic fundamentals of filters in power applications. We have simplified the information below as far as possible for clarity.
When an electrical load is connected to a source a current loop is formed. Transfer of energy takes place as current flows from the source through the load and returns to the source. Electricity makes no distinction between mains power or performance degrading noise. It is all the same to any connected circuit.
Noise can enter any current loop in a number of ways, but can be largely categorised into two types or modes.
Firstly we’ll look at Differential Mode Noise. This occurs when only one conductor of a current loop encounters a noise source. The noise therefore circulates within the loop. For example this occurs when conductors are not closely coupled; such as in equipment internal wiring or when the noise is generated from circuit elements within the load or source itself.
Secondly we’ll look at Common Mode Noise. This occurs in both conductors of a current loop; equally and in phase with respect to ground. An instance being closely coupled live and neutral conductors encountering an electromagnetic field that immerses both conductors equally. For example; a cable picking up transmitted radio energy, from broadcast or wi-fi transmitters for example. The noise has its own current loop and returns through the safety earth conductor via the stray capacitance present in all distributed electrical systems.
Both these types of noise are commonly found in the real world. Now let’s look at how to reduce the unwanted noise entering the load. With Common Mode Noise a filter can be readily designed to attenuate the energy down to a given frequency using a common mode inductor. This uses phase cancellation to attenuate unwanted noise. The physical geometry of the inductor produces a relatively large value of inductance, given the core size and number of wire turns. It therefore produces effective filtering but for common noise only. Differential mode noise is able to pass through the filter readily.
A different topology is needed to attenuate Differential Mode noise. In this case only separate series inductors in the send (live) and return (neutral) in combination with a shunt capacitor in the current loop can attenuate the noise. Unfortunately the favourable geometry of the common mode inductor is not effective in this case. The series inductors used in the filter must use larger cores and more turns of wire to provide effective attenuation for differential mode noise compared with common mode.
Inferior mains conditioners may claim they filter differential mode noise but in fact use shunt elements without series inductors to divert the noise to earth (known as a Delta configuration). This then pollutes the earth instead, not the optimum solution for sensitive audio equipment as noise is still present on the earth line.
ISOL-8 Transmodal Filter: Warning! All mains conditioning is not created equal. Most manufacturers of mains conditioning equipment completely fail to effectively filter differential mode noise as it adds both complexity and cost. ISOL-8 Transmodal filters combat both common and differential modes of transmitted noise whilst keeping the earth clean for maximum filter performance at all times.
Cross Contamination Explained.
The problem of noise cross contamination through power supply is often overlooked. Reducing its effect can result in significant performance gains for any system.
The key point is to understand is that each system component is not blameless and generates significant mains noise itself. In terms of power supply, it is also usually in close proximity to other components in the system, compounding the problem.
If you have system that contains a single component, one filter will protect it from mains borne noise:
Despite the presence of the filter, adding other components still allows noise to circulate in the system. Any noise generated within the system passes from one system component to another as they are all connected to each other in parallel after the filter. The presence of the filter will have an effect on this transmission, but it is far from the optimum solution.
A multiple filter configuration, as pioneered by ISOL-8's designer Nic Poulson, is the optimum solution. External noise is blocked as before. But significantly, each component is also prevented from influencing the performance of another, releasing maximum performance.
