EASI’s Key Design Features are:
- Low resistance & high conductivity.
- Extremely low dielectric loss.
- Extremely low capacitance (High bandwidth).
- Low inductance (High bandwidth).
- Zero skin effect associated problems in the audio band.
60 Day Money Back Guarantee
The EASI Design Philosophy
The EASI cable is a high end, high bandwidth analogue signal audio interconnect cable designed to provide optimum audio signal transfer with minimum audio signal degradation.
EASI’s Key Design Features are:
EASI’s Key Design Features are:
The Main Problems with Interconnect Cable Design
Multi-strand Conductors
A lot of interconncect designs use multi-strand conductors. These designs are fundamentally flawed! The main problem with multi-strand interconnect cables is that electrons jump in a random manner from one strand to another. This phenomenon causes fluctuation in path loss, fluctuation in instantaneous resistance, group delay modulation and frequency dependence. This can manifest as graininess to the audio sound. For this reason the inerconnect cable conductors have to be solid. Solid conductors do however have their own problems.
Skin Effect in Solid Conductors
The main problem with solid conductors is skin effect. This is the depth at which frequencies travel in the wire. The higher the frequency the less the wave penetrates the wire. This means as you move up in frequency the effective cross sectional area of the conductor reduces and hence the effective resistance increases. This frequency dependence characteristic attenuates higher frequency audio signals. The skin depth is defined as the depth at which the current density is attenuated to 36.8% of the surface.
Poor Quality, High Loss Dielectrics
Many audio cables suffer from low quality dielectrics causing increased losses and audio signal degradation. Most cables use PVC sheathed conductors, this is a particularly poor dielectric when compared to polyethylene (PE) or Teflon (PTFE). The dielectric constant of PTFE is about two thirds of PVC and the loss is one hundredth (1/100) of PVC. We believe PTFE to be one of the best dielectrics available.
Silver Plating vs Solid Silver
We believe silver plated copper conductors are worse than either solid silver or solid copper conductors. The silver plating is always very thin and only part of the audio signal’s current travels in the silver plating the rest of the audio wave travels in the copper, this forms a conductivity discontinuity that can be heard as a reduction in audio clarity.
The Nine Nine War
There seems to be a war between interconnect cable manufacturers as to who can add the most nines to the silver conductor purity! Do not be fooled, sadly the reality is that few if any can provide evidence of consistent silver purity above 99.99% (4N).
A lot of interconncect designs use multi-strand conductors. These designs are fundamentally flawed! The main problem with multi-strand interconnect cables is that electrons jump in a random manner from one strand to another. This phenomenon causes fluctuation in path loss, fluctuation in instantaneous resistance, group delay modulation and frequency dependence. This can manifest as graininess to the audio sound. For this reason the inerconnect cable conductors have to be solid. Solid conductors do however have their own problems.
Skin Effect in Solid Conductors
The main problem with solid conductors is skin effect. This is the depth at which frequencies travel in the wire. The higher the frequency the less the wave penetrates the wire. This means as you move up in frequency the effective cross sectional area of the conductor reduces and hence the effective resistance increases. This frequency dependence characteristic attenuates higher frequency audio signals. The skin depth is defined as the depth at which the current density is attenuated to 36.8% of the surface.
Poor Quality, High Loss Dielectrics
Many audio cables suffer from low quality dielectrics causing increased losses and audio signal degradation. Most cables use PVC sheathed conductors, this is a particularly poor dielectric when compared to polyethylene (PE) or Teflon (PTFE). The dielectric constant of PTFE is about two thirds of PVC and the loss is one hundredth (1/100) of PVC. We believe PTFE to be one of the best dielectrics available.
Silver Plating vs Solid Silver
We believe silver plated copper conductors are worse than either solid silver or solid copper conductors. The silver plating is always very thin and only part of the audio signal’s current travels in the silver plating the rest of the audio wave travels in the copper, this forms a conductivity discontinuity that can be heard as a reduction in audio clarity.
The Nine Nine War
There seems to be a war between interconnect cable manufacturers as to who can add the most nines to the silver conductor purity! Do not be fooled, sadly the reality is that few if any can provide evidence of consistent silver purity above 99.99% (4N).
The Cable Construction
Our interconnect cables are designed to operate with perfectly linear amplitude and phase response from DC to 40kHz. The skin depth in silver at 40kHz is approximately 0.33mm, therefore to maintain a near uniform cross sectional current density the radius of the silver conductors used are 0.25mm (0.5mm diameter).
Only solid 99.99% pure silver conductors are used due to their low resistance, high and uniform conductance and superior signal transmission characteristics.
The EASI uses 8 silver conductors per stereo pair. The pure solid silver signal conductors are arranged in a 4 strand Litz braid topology, the dimensions of which have been chosen to minimise capacitance and suppress EMI and RFI while maintaining audio signal integrity. Each silver conductor is held in an oversized Teflon (PTFE) sheath forming a Teflon and air structure that is over 50% air and therefore produces an extremely low loss and near perfect effective dielectric constant, while maintaining the correct impedance for the whole length of the interconnect cable.
Although low mass plastic RCA connector offer some advantages with certain interconnect cable designs we believe that the high loss plastics used in the construction can degrade audio signal integrity, therefore the EASI is fitted with high quality gold plated RCA connectors with an integral low loss Teflon (PTFE) dielectric.
Only solid 99.99% pure silver conductors are used due to their low resistance, high and uniform conductance and superior signal transmission characteristics.
The EASI uses 8 silver conductors per stereo pair. The pure solid silver signal conductors are arranged in a 4 strand Litz braid topology, the dimensions of which have been chosen to minimise capacitance and suppress EMI and RFI while maintaining audio signal integrity. Each silver conductor is held in an oversized Teflon (PTFE) sheath forming a Teflon and air structure that is over 50% air and therefore produces an extremely low loss and near perfect effective dielectric constant, while maintaining the correct impedance for the whole length of the interconnect cable.
Although low mass plastic RCA connector offer some advantages with certain interconnect cable designs we believe that the high loss plastics used in the construction can degrade audio signal integrity, therefore the EASI is fitted with high quality gold plated RCA connectors with an integral low loss Teflon (PTFE) dielectric.