RUSS ANDREWS – BLOCKING DC AT THE NORTH WEST AUDIO SHOW

Russ Andrews Accessories, originator of the specialist HiFi mains cable and pioneer of research into the effects of mains power on audio performance, will use the North West Audio Show to introduce its new DC Blocker, to solve a common mains issue which can’t be fixed by use of traditional mains filters. 

DC on the mains is a problem for linear power supplies, especially ones with larger toroidal transformers, common in integrated and power amplifiers, as they have a very low resistance to DC. It is often caused by other equipment in the house, which by nature of their age or design can introduce DC to the AC mains supply. Even 500mV of DC, or lower, can affect the magnetic field within the transformer by saturating the core, creating a mechanical vibration within the coils of copper wire, which is heard as a noticeable buzz.

The Russ Andrews DC Blocker is the highest specification device of its type. Its design is based around sound engineering principles, such as the use of extra-wide, double-layer tracks on the circuit board made from 4oz pure copper for a solid low resistance and current handling capability. The internal components are of the highest audio quality, including Kimber Kaps™ for additional smoothing of the mains supply; two large capacity 10,000uF capacitors for superior current handling; KIMBER KABLE® TCX internal wiring; high-current Vishay diodes for DC blocking up to 1.5V and a non-resonant/non-ferrous ABS case. It is rated for equipment whose power requirement is a maximum of 1,500 watts.

Also on display will be the company’s wide selection of mains cables, from YellO Power, through the Evolution-100, 300 and 500 PowerKord™ range and up to the EVO-S PowerKord™, which sits alongside the recently developed, highly sophisticated, grounding system, the SuperRouter™. The company’s comprehensive range of mains filters, including, Silencers™, Purifiers™ and the flagship PowerPurifier™ will all be available.

Show visitors will be able to take advantage of big savings on selected Russ Andrews^® and KIMBER KABLE^® products, including: a 20% reduction in the price of the RANS-1 Network Switch; 20% off the Signature Mains Sockets; 10% on the special edition Evolution-100 PowerKord with upgrade to Wattgate W350RH IEC and SuperFuse; and 25% off the Kimber Tonik interconnects. There will also be a 10% discount across the complete range of Russ Andrews^® and KIMBER KABLE^® products.