DNM Audio Interconnect & Speaker Cables From England

by **musiclinkav** Wed Mar 16, 2011 11:27 am

HOT! HOT! HOT! NEW ARRIVAL 2011 Introducing the DNM Solid Core Stereo interconnect & Loudspeaker Cable from England!

Stereo Solid Core Speaker Cable UP$58.00/m, PROMO PRICE@ $49.00/m. FREE Banana or Spades connectors if you purchase 6m of DNM's awesome speaker cable.
Stereo Solid Core Interconnect UP$66.00/m, PROMO PRICE@ $59.00/m. FREE RCA connectors if you purchase 2m of DNM's awesome interconnect cable.

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DNM began making the original mono solid core speaker and interconnect cables in 1984. Those designs have endured and the speaker cable has even been copied by one Swiss company, but 23 years on DNM's cable technology has moved ahead, a new type of solid core audio cable is now available-- a dual channel stereo/bi-wire design.

The unique design of DNM Stereo Solid Core cable is based on our experience with advanced amplifier technology. DNM cables are designed to enable the amplifier driving the cable to work optimally into the cable load. The interaction between the amplifier and the cable determines the sound quality of the combination, but when listening to a new cable, the change in sound quality is usually attributed to the cable alone.

In 2008 the DNM range of stereo solid core cables expanded to three types, giving an ideal cable for most interconnect and loudspeaker applications with the clearest sound available regardless of price. Upgrading to DNM cable will give a big sound upgrade for small cost.

DNM Audio Interconnect & Speaker Cables From England Dnmgeneralstereocable

1.DNM Stereo Solid Core Precision speaker cable - is an ultra-compact dual channel high resolution cable intended for use with higher sensitivity speakers, lower powered amplifiers and smaller rooms. More Information

2.NEW : DNM Stereo Solid Core Speaker cable - is a dual channel high resolution general purpose speaker cable with resistance 2.5 times lower than the Precision cable, so it can be used over longer distance and with lower speaker sensitivity and higher amplifier power.

3.DNM Stereo Solid Core Interconnect cable - is a dual channel ultra-high resolution interconnect cable for all applications that do not require a shielded connection.

How DNM Stereo Solid Core cable works
DNM uses scientific principles to set the basic cable parameters, defining the magnetic and ultra-high frequency characteristics, all factors that really do affect the audio performance of a cable.

Less certain aspects of cable design, such as conductor shape and propogation velocity of the insulation material, add to the mystique of hi-fi cable design and increase the price but not the performance.

DNM Design considers the interface between amplifier and cable to be vital for best sound quality. We therefore concentrate on getting the basics right and our tests have confirmed that complex cables, with speculative design features, even though they cost much more, usually lack in sound quality compared with DNM cable.

The main features of DNM audio cables are described below. Three domestic DNM cables are now available at a modest price but they all give a very high performance.

DNM Solid Core conductors
DNM uses single solid-core (round-section high purity copper) conductors to ensure that magnetically generated back-emf is truly proportional to the signal. This contrasts with the untidy magnetically generated eddy currents that interfere with the audio signal in the conductors of heavy multi-stranded cables and cables using flat section conductors.

The three DNM Stereo cables, use different conductor diameters to suit the application :-

1mm for normal speaker application

0.65mm for high sensitivity speaker application

0.4mm for interconnect application.

The insulation and cable construction
DNM stereo solid core audio cables use LDPE (low density polyethylene) insulation in a unique ribbon that is designed to improve the audio performance.

The DNM stereo ribbon is dimensioned for the application and it contains four conductors that carry two channels for stereo or one bi-wire channel. The ribbon is a key element because it controls the all-important spacing between the conductors defining the RCL balance (resistance, capacitance and inductance) which determines the ultra-high frequency loading- a factor that definitely affects the sound quality of the driving amplifier.

The DNM conductors are encased in a semi-transparent outer ribbon. The ribbon has an offset between its own plane and the plane of the conductors, as shown above. This causes air to be the primary dielectric, reducing the capacitance between the conductors and increasing linearity. Carefully selected spacing between the conductors minimises the high frequency reflections that can reduce the performance of the amplifier.
An easy-separation feature is designed into the ribbon which has the added advantage of reducing its tendency to resonate when the speaker current causes the conductors to be magnetically pulled together (reducing the Q of the structure).
The combined effect of all the advanced features in DNM Stereo Solid Core cables offer a new level of sound clarity at a modest price.

The three versions of DNM stereo cable are illustrated in detail here to compare their cross-section size, the drawing also shows dimensions and full technical information.

Original Mono Solid Core Cable
Since the early 1980's, there has been an increasing demand for high-quality interconnect and speaker cables. What began as a quest by music lovers to get that little bit more out of their hi-fi systems has grown into a multi-million pound business, full of marketing hyperbole, exotic packaging and enough expensive metal to build a ship!

Unfortunately, many of these over-engineered cables owe more to increasing the perceived value of the product than to improving sound quality. Ribbon-type solid core cable was originally developed by DNM back in 1984 and now has many converts. It represents the opposite approach to most of the audiophile cable market, but it is designed for domestic audio - and for that application we believe it is the best at any price.

The majority of cables used in audio have been selected for their low inductance, low resistance and high capacitance characteristics as measured on the test bench. These parameters define what are believed to be the electrical properties most ideal in an audio cable.

Applications, however, vary widely, from recording studios through public address systems and live concert amplification to the domestic, with each having its own particular demands. No multi-purpose cable can suit the precise requirements of the domestic music lover as well as one designed specifically for that purpose - as home listening tests prove!

There are good technical reasons for this.

Eddy Currents
Once the cross-sectional area of a cable exceeds a certain size, things begin to go badly wrong with the sound. Complex interactions between the cable and the magnetic fields generated by transmission of an electrical signal cause circulating eddy currents, which also generate significant magnetic fields.
A cross-section of a comparatively simple ten strand multi-core cable showing damaging field interaction. This magnetic mess reduces midband clarity and often creates a bright treble and indistinct bass.

DNM Audio Interconnect & Speaker Cables From England Multicross

These induced magnetic fields oppose the original signal - the result is distortion. In short - smaller cross-sectional area gives greater clarity.

When auditioning speaker cable, most of the differences heard are caused not by the cable itself but by the amplifier reacting to the revised loading of the cable. Large, multi-strand cables are recommended by some manufacturers because their low resistance is thought to maintain the amplifier's low output impedance. Whilst this is true, it has no sonic benefit at all because amplifiers sound better when driving through a resistive or inductive load.

DNM Audio Interconnect & Speaker Cables From England Solidcross

Large diameter high-capacitance cables connect the amplifier's sensitive feedback control system to a short circuit, a type of load that invariably worsens the amplifiers sound quality.
A cross-section of the spaced pair DNM reson cable shows its simple, clean and uniform magnetic field frozen at an instant in time. It is easy to forget that music signals produce a complex, dynamic version of this picture-and the field interacts strongly with the conductors. Bearing this in mind, it would be amazing if different cable designs sounded the same - not amazing that they sound different!.

Smaller diameter cables with higher resistance and inductance help to isolate the amplifier's feedback control system, improving clarity throughout the frequency range.

This argument for the speaker cables applies equally well for each element in the audio chain, other cables and even electronics. So the interconnect cable is equally important and amplifier design is influenced by these considerations as well.

The final proof is in the auditioning. Although our cables are inexpensive by high-end audio standards, we believe that they prove their worth, no matter how complex and expensive the competition!

Available now@
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