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RCA Single

Atlas Ascent Ultra 75 Ohm SP-DIF Digital Audio Cable

As low as £205.50 £171.25
SKU
Atlas Ascent SP-DIF
5 Years
New
24 hours
what's this?

We can burn-in your cable for up to 96 hours FREE of charge using our Nordost VIDAR cable burner. This is a £3000 machine that will optimise the performance of your cables from day one. This means the cables will be in optimum performance mode when you receive them, so you'll be able to make a performance assessment quickly rather than waiting 70 hours+ of usage. The result of conditioning cables with the Nordost VIDAR is, improved sound staging, increased detail, and an overall more musical presentation. Please Note: we are unable to burn-in cables with stripped bare ends or BFA-only plugs. (This does not apply to BFA/Banana plugs). Cables are burnt-in for the selected period AFTER your order has been processed. This service is offered at Future Shop's discretion and we cannot guarantee all burn-in requests are fully completed during busy periods.

what's this?

Select the desired length for your cable from the drop-down menu.

what's this?
SPEAKER CABLES:

A quantity of 2 means you will receive a pair of speaker cables e.g. for your front left and front right speakers. By entering a quantity of 1, you will get a cable for a single speaker e.g. centre speaker and this option also enables you to vary the length (and termination) of your cable for each speaker.

OTHER CABLES:

A quantity of 1 means you will receive a single cable in the case of aerial, satellite, subwoofer, digital coaxial & optical cables and a pair of cables in the case of 2 rca to 2 rca analogue audio cables.

NON-CABLE PRODUCTS:

A quantity of 1 means you will receive 1 of the specified products.

Available

Need help? Call us on 0800 772 3688 or 0208 905 1555

Prefer email? Contact us via sales@futureshop.co.uk

The Atlas Ascent Ultra 75 Ohm SP-DIF digital cable is a superb cable which gives a considerable insight into the state-of-the-art performance of Atlas' ‘high-end’ Mavros interconnect at a very reasonable price. Ascent was designed to be technically and sonically superior to competing digital cables currently available at similar prices.

Atlas Ascent Ultra 75 Ohm SP-DIF Digital Audio Cable

 

The Atlas Ascent Ultra 75 Ohm SP-DIF digital cable is a superb cable which gives a considerable insight into the state-of-the-art performance of Atlas' ‘high-end’ Mavros interconnect at a very reasonable price. Ascent was designed to be technically and sonically superior to competing digital cables currently available at similar prices.

The central conductor is made from OCC copper which is insulated by an extremely low-loss PEF (Foamed Polyethylene) dielectric. The tightly woven wire mesh together with an aluminium outer foil provides 100% rejection of RFI (Radio Frequency Interference) ensuring the music signal is free from any external noise. The cable is covered by a soft PVC sleeve and finished in a grey woven fabric.

The Ascent digital cable is terminated with Atlas' cold-weld connected wideband Ultra RCA plugs. The result is a smooth, uninterrupted signal path which behaves as one continuous entity, with minimal degradation of the signal compared to soldered connections. This is particularly important in a digital cable, connectors which compress the cable can actually alter the cable’s impedance, which drops below the 75 Ohm specification, typically by up to 50%, reducing accuracy of the signal transfer. 

 

Features :

  • Ultra RCA Plugs 
  • OCC Copper Conductors 
  • PEF Dielectric 
  • Co-ax Construction


Ultra RCA Plug

The Ultra is a wide-band, OCC copper, constant impedance, self-cleaning, solder-free construction RCA plug.
In Atlas' cables, the conductor to plug interfaces are solder free, and the gold-plated conjugate brackets act as the return signal path, helping to reject RFI. Both conjugate brackets (these grip the cable without the adverse effects of compressing it, which can alter impedance) have two asymmetrical leaves which spring open on insertion and wipe clean the signal path. To maintain a clean signal path, simply remove and re-insert them periodically.

The Ultra RCA connectors utilise low-mass non-magnetic connectors to minimise the negative effect of excessive metal in the plug itself.

Atlas Ultra RCA Plug Technical Diagram

Ohno Continuous Casting Copper (OCC Copper) 

The Ohno continuous casting method re-heats the extrusion as the molten copper is forced out of the mould and very slowly and gradually draws the grain or crystal down the conductor''s length, creating a ‘single crystal structure.’ Actually, because no copper is 100% pure, there will always be a few boundaries produced by impurities. The frequency of boundaries created are quite insignificant. A typical crystal in a copper conductor drawn to 0.3 mm diam. using the OCC process is 125.00 metres long!

The benefits are obvious, with almost no crystal boundaries, the audio signal is no longer impeded down the copper wire and more information and detail is delivered faithfully to the receiving equipment.

Atlas OCC Copper Design Process

Copper Purity Comparison (0.3mm Diameter)
  TPC OFC OCC
Purity >99.9% >99.99% >99.999%
Specific Gravity 8.75 8.926 8.938
Gas Impurities (ppm)
O2 200~500 <10 <5
H2 <0.5 <0.5 <0.3
Average Crystal Size (Metre) 0.007 0.02 125.00
Crystals Per Metre 150 50 0.008


PEF Dielectric
 

PVC (Poly Vinyl Chloride) is cheap to produce and, as such, is the most commonly used insulation in AV cables. However, PVC is the worst quality insulation a Hi-Fi or AV signal can encounter as its high loss causes a significant reduction in signal velocity. PVC is better suited to power cables and should be avoided in Hi-Fi and AV signal cables.

Other dielectrics in common use are Polyethylene, Polypropylene and Polytetrafluoride Epoxy (better known as PTFE (Teflon™) or Teflon,) and the new and unique Atlas (PTFE).

PEF (Foamed Polyethylene). The foaming process uses a blowing agent, of which there are two types. Atlas use the gas-foamed method which creates a more inert, consistent and higher quality product.

The table below shows the properties of a selection of dielectrics. Though not used as a dielectric in Atlas' cables, PVC is included for comparison purposes.

Dielectric Material Comparison (0.3mm Diameter)
Property Polyvinyl Chloride
(PVC)
Foamed Polyethylene
(PEF)
Polypropylene
(P.P)
Teflon
(FEP or PTFE)
PTFE
Dielectric Constant
(@ 50 -106Hz)
4-8 2.3 2.25 2.1 1.3
Dielectric Strength
(kV mm-1)
23-30 30-50 30-50 20-25 N/A
Loss Tangent
(% @ 50 - 106Hz)
8-15 0.02-0.05 0.02-0.06
(@ 106Hz)
0.02-0.07 N/A
Volume Resistivity
(Ohms.cm @ 20°C)
1012-15 >1017 6.5x1014 >1016 N/A
Tensile Strength
(Kg mm-2)
1.0-2.5 1.0-2.0 3.0-4.0 1.9-2.2 1.0
Melting Point
(°C)
-130 112-120 155-160 275 275
Max. Continuous Operating Temp.
(°C)
60 75 90 200 260
Min. Operating Temp.
(°C)
-15 to -40 <-60 -5 to -45 <-60 -250


Co-ax Construction

Central conductor (signal path) surrounded by dielectric material encased within a circular conducting screen which acts as the signal return path.

 


Specification :

  • Construction : Co-ax 
  • Material : OCC 
  • Dielectric : PEF (Foamed Polyethylene) 
  • Screen : Braid + Al Mylar™ 
  • Capacitance : 59.37 pF/m 
  • Inductance : 0.473 µH/m 
  • Resistance : 0.7311 Ohms/m 
  • Impedance : 73.11 Ohms at (1MHz) 
  • VOP : 0.81 
  • Outside Diameter : 8.5mm

 

About Atlas Cables Made in United Kingdom

Atlas Cables are a major producer of interconnects and cables in the United Kingdom of Great Britain. All products are researched, developed and most are assembled in the Atlas purpose built factory in Scotland.

Many of these products are unique and use advanced techniques of production or manufacture in order to bring to the user the very finest quality products. With each new model we continue to push the boundaries of reliability and performance. It's little wonder then, that Atlas Cables have had so many mile-stone advances in the past and that Atlas Cables have secured so many awards in comparative tests against other products.

Specification :

  • Construction : Co-ax 
  • Material : OCC 
  • Dielectric : PEF (Foamed Polyethylene) 
  • Screen : Braid + Al Mylar™ 
  • Capacitance : 59.37 pF/m 
  • Inductance : 0.473 µH/m 
  • Resistance : 0.7311 Ohms/m 
  • Impedance : 73.11 Ohms at (1MHz) 
  • VOP : 0.81 
  • Outside Diameter : 8.5mm

UK Delivery

 

1. We use Royal Mail 1st Class Services as a Standard Postage Option

Orders received before 4.30pm Monday to Friday (excluding Bank Holidays) are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. Over 98% of our orders are usually delivered the next working day including Saturdays.

Standard delivery is usually within 2-3 working days, although 98% of all orders are delivered the next working day including Saturdays . In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.

All items are fully insured and come with an invoice from Futureshop.co.uk. We use the Royal Mail for delivery of small packages and DPD or Interlink Express for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order Monday to Friday subject to stock availability. For International orders, we use FedEx Services where customers have selected this option.

Please note, special orders for non-standard cable lengths or custom-made cables may be subject to longer delivery time-scales. This may vary from manufacturer to manufacturer.

We offer 'Free UK delivery on orders over £99' subject to the following terms & conditions:

  • Applies only to orders with £99 or more of items (including VAT at the UK rate), at FutureShop.co.uk
  • Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by UK Mail).
  • Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
  • You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
  • We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
  • FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.

Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or Interlink Express next working day services which deliver from 9.00am to 6pm within mainland UK.

Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or Interlink Express.

 

Royal Mail 1st Class Shipping DPD Next Day Delivery

 

2. Special Delivery UK - Guaranteed Next Working Day

We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.

For the Next Day Special Delivery service, orders must be received by futureshop.co.uk by 4.30pm weekdays. Orders after the 4.30pm deadline cannot be guaranteed for same day dispatch.

Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.

For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.

 

Royal Mail Special Next Working Day Delivery

 

3. Channel Islands & Northern Ireland

We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.

 

European Countries

Deliveries to EU member states are subject to 20% VAT. We offer the following shipping services:

  • Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 10 working days.
  • Royal Mail First Class International Tracked Airmail Services - Items are usually delivered within 3 to 7 working days.
  • DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
  • Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
  • Federal Express International Economy - Item are usually delivered within 48 to 72 hours

 

Royal Mail International DeliveryRoyal Mail International Tracked DeliveryFedEX Express Economy International DeliveryFedEX Express Priority International DeliveryDHL Worldwide Express International DeliveryDHL Econmy Select International Delivery

 

Worldwide - Excluding UK & Europe

Deliveries outside of the EU are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you login or register.
We offer the following shipping services:

  • Royal Mail First Class International Untracked Airmail Services - Items are usually delivered within 15 working days.
  • Royal Mail First Class International Tracked Airmail - Items are usually delivered within 10-15 working days.
  • DHL Express International - Items are usually delivered within 48 hours. DHL orders must be received by 3:30pm in order to ship items the same day, subject to stock availability.
  • Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability.

Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets.

 

Royal Mail International DeliveryRoyal Mail International Tracked DeliveryFedEX Express Economy International DeliveryFedEX Express Priority International DeliveryDHL Worldwide Express International DeliveryDHL Econmy Select International Delivery

 

Free Cable Burn-In Service Option Using The Nordost Vidar Machine

 

Please Note: We are unable to burn-in cables with stripped bare ends or BFA plugs. Cables are burnt-in for the selected time period AFTER your order has been processed. Custom-length cables are burnt-in for the selected time period AFTER they have be terminated by the manufacturer or our engineers. 

Our cable burn-in service is a non-chargeable service and is provided by Future Shop at its discretion. We will attempt to fulfil all burn-in requests for the specified time periods. However, during extremely busy periods, we regret we may not be able to meet demand for all requests due to the limited connections available on the Nordost Vidar cable conditioning machines.

We are pleased to offer a free cable burn-in service for this cable when purchased through Future Shop. The Nordost VIDAR cable burn-in machine combines three distinct functions all in one operation:

  • It neutralises charges that build up around the cables and the insulation
  • It provides a very wide band and deep conditioning into the conductor core, which produces changes in the way signals pass through the metal.
  • It ultrasonically conditions the surface of the conductors.

 

Nordost Vidar Burn-in Machine

 

The VIDAR uses a proprietary combination of composite and complex signals to condition the cables. Parts of the signal oscillate at ultra-low frequencies, while other parts are in ultra-high ranges which extend beyond the range of video frequencies. The signal bounces in a ping-ping ball-like fashion from one end of the cable to the other. During the burn-in process, ultra-low frequencies penetrate deep into the core of the cable. The ultra-high frequencies zip along the surface. This method of signal transmission is set up to beat harmonics, or heterodynes, between the two complex waveforms. In the digital domain, this would be referred to as aliasing products. These beat frequencies penetrate all layers of the cable.  

The design of the circuitry also has a unique feature which drives electrons above the conductor into the dielectric (or insulation) area. The VIDAR not only sends ping pong signals along the cable, it also sends a similar signal from the centre core to the outer shield in the case of interconnect cables. This function neutralises the electrical charges discussed above.

So, what does that all mean to me?
The end result of conditioning cables with the Nordost VIDAR is improved sound staging, increased detail, and an overall more musical presentation.

Download Icon  READ MORE ABOUT THE NORDOST VIDAR CABLE TREATMENT

 

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