Designed & Handcrafted by Yannis Tomé.
Pure, solid OCC Copper tonearm cable - Cotton & Teflon dielectric - double shielded- Starquad geometry.
COPPERCORD is a line of handmade, pure OCC copper cables in starquad geometries. Coppercord cables feature a unique combination of cotton and PTFE (Teflon) as their primary and secondary dielectric. These innovative designs deliver a consistent signal transfer across the audible frequency range, with very low dielectric involvement. We have taken advantage of the full potential of cotton and Teflon by designing and producing insulated conductors that overcome typical, mechanical limitations associated with these two materials. Despite their minimal appearance which allows us to keep he price of these cables at low levels, their finish is elegant, very flexible and user friendly while their internal structure is maintained accurately by a solid and durable construction
Coppercord consists of four solid copper cores individually suspended inside cotton fibers and sealed in solid Teflon.. The application of cotton fibers allows a very good degree of dimensional stability with a predominantly air dielectric, preventing the movement of the copper wire inside the Teflon tubes. On the other hand the use of thin, solid PTFE as an outer layer maintains a fixed proximity among the cable conductors and ensures a perfect sealing factor preventing moisture to reach the cotton insulation and delivering an extremely efficient degree of electrical isolation with stable values across a wide range of frequencies and temperatures. The result is a largely air based dielectric with minimal impact, excellent suspension of the metal conductor and elimination of the aging and moisture absorption character of cotton.
The design is further topped with a lower density layer of PTFE serving as bedding insulation between the signal conductors and the cable shield. The cable is fully shielded from one end to the other using two layers of dense OFC copper braids of very high optical coverage . Finally, the cable is finished with a soft and extremely flexible silicone rubber jacket to enhance the mechanical characteristics of the cable as well as provide overall protection to the entire assembly.
For more details on this cable and an image gallery you can vistit:
COPPERCORD Website (opens a new window)
If you wish to add a certain customization to your order, please contact us at info@back-promo.co.uk .
for more details and additional images of Coppercord please visit here : Coppercord external link
Ground connection:
Preamp side: Choose whether you require an external ground connection for the phono preamp or not. If you choose not to have an external ground connection to the phono preamp, this will be performed via Pin 1 of the XLR. Note that your choice will not affect the balanced character of the cable.
Turntable side: DIN tonearm cables incorporate an internal ground connection in the tonearm connector .Choose whether you require an additional ground for connection to the turntable chassis, too (certain turntables may require an additional ground connection between their chassis and the tonearm). In such cases we can supply the cable fitted with a suitable, additional ground lead to enable this connection (typically using an M4 ring terminal).
The image below shows the 4 available earthing options to the turntable and the preamp. (the image is not necessarily representative of the cable you are ordering. It is simply used to illustrate the different ground arrangements that are available)..
Selecting your product options:
Length: Choose the length you require. The price of the cable will be adjusted automatically. If you wish to order your cable at a length other different from the ones listed, please contact us for a quote.
Tonearm Connector / XLR Connectors: Choose the connectors of your preference. The connectors you have selected will be displayed in the image above. The price of your cable will be adjusted automatically. We hold a large range of connectors that are not listed here. So if you have specific requirements please do get in touch.
For an overview of the tonearm connectors you can visit: https://cabledesigns.co.uk/html/standard_tonearm_connectors.html
Ground connection to peramp: Choose whether you require an external ground connection for the phono preamp or not. If you choose not to have an external ground connection to the phono preamp, this will be performed via Pin 1 of the XLR. Note that your choice will not affect the balanced character of the cable.
Using the ground pins of the XLRs to make the ground connection (no external ground) is the most common configuration. However, certain phono preamp manufacturers recommend that the cable shields (Pin1 of the XLRs) should not be connected to the turntable. Instead the ground connection should be made using the external ground lead to the chassis of the phono preamp. If this is the case it will be clearly mentioned in the user manual of your phono preamp.
If you are not sure which choice is more suitable for you please get in touch and we will try to help.
Optional ground connection to the turntable chassis Most tuntables do not require this additional ground connection to their chassis. DIN tonearm cables always incorporate an internal ground connection in the tonearm connector. This option is only suitable for certain turntable models that have their chassis (or sub-chassis) electrically isolated by the tonearm mass (i.e. Linn LP12). In such cases we can supply the cable fitted with a suitable, additional ground lead to enable this connection (typically using an M4 ring terminal).
Angled DIN Pin orientation:
This option is only relevant if you choose to have your cable fitted with an angled tonearm connector. If you use a straight tonearm connector simply leave it to the default option
Not all tonearms have their pins rotated to the same direction. The pin orientation of your tonearm socket and the tonearm connector will determine the direction towards which the cable will exit the tonearm/turntable. By default all of our angled tonearm connectors are configured using “option 1” orientation as shown in the images, which is the most common. The choice depends on how the pins of your tonearm socket are rotated.
Option 1 is the default option for the vast majority of tonearms and tonearm cables.
Option 2 (180deg.) is the second most frequent option. It is typically used on Jelco tonearms but also on some Audioquest, Audiomods, Fidelity Research and Roskan models.
Option 3 is quite rare but it is often used on some SME tonearms when there is the need for the cable to be routed downwards.
Option 4 is the least common and it is typically used on Graham tonearms.
It is always advised to check your tonearm and see how its output pins are rotated so that you can choose the best option according your set up and cable “dressing” preferences.
