Positive Cable Norma+
High-end speaker cable from Positive Cable, the flagship of the Optimum range, designed for enhanced isolation.
Description
The Norma+ is a speaker cable designed by the French manufacturer Positive Cable as part of its Optimum range. It occupies the highest position in this range, sitting above the Norma model, whose principles it builds upon and takes further.
Its main feature lies in an isolation and interference immunity described by the manufacturer as optimal, superior to that of the Norma. In practical terms, this type of treatment aims to limit electromagnetic disturbances liable to alter the audio signal transmitted between the amplifier and the speakers, with the aim of preserving the fidelity of the sound reproduced.
The Optimum range, of which the Norma+ is part, makes use of several patents specific to the manufacturer, including special insulators developed in-house. Positive Cable claims a philosophy of making advanced technological research accessible, rather than reserving it solely for very high-end products.
This cable is aimed at hi-fi enthusiasts wishing to take care over the link between their amplification and their speakers, in a system where the quality of the cabling is considered a fully-fledged link in the sound reproduction chain.
What to check before buying used
Check the condition of the connectors (banana plugs, spades or bare wire): oxidation, loose crimping or weakened soldering degrade the contact and thus the signal transmitted to the speakers. Also inspect the sheath and shielding along the full length, looking for pronounced kinks, cuts or damaged braiding that would compromise the interference immunity specific to the Optimum range. A listening test on both channels can reveal any intermittent cut-out or imbalance between the channels.
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