The clarity of the treble can be a test for some systems, as the cable doesn’t suffer high-frequency fools gladly zingy metal dome tweeters and thin-sounding sources played through the Optimus Reference are left exposed, rather than politely overlooked. But, the same applies to the treble and bass, too: it just takes you longer to parse these because the midband is so expressive and immediate. The sense of energy – especially in that open and expressive midrange – is impossible to ignore, and it Optimus Reference’s equivalent of its signature dish. Clearer Audio burns the cables in for 60 hours on an audiodharma Cable Cooker, but recommends an additional 50-100 hours of bedding in time in a system. Yet more RFI and other spurious noise is caught thanks to the ferrite rings at each end of the cable, coated in the distinctive electric blue found covering the strain relief of the Eichmann Bullet RCA plugs, a popular plug choice among audiophiles in the know about such things. The two send and two return conductors in each cable are twisted around a cotton filler rod to reduce inductance and RFI, and then the whole cable itself is shielded using a seven layer braid/foil arrangement of silver-plated copper and pure copper.
Silver linein cable free#
Only free air and Teflon come close to these features, but using air alone as an insulator is impractical and Teflon doesn’t sound as good, according to Clearer Audio. The conductors are then insulated in foamed polyethylene, chosen for its outstanding dissipation factor, low dielectric constant, and low capacitive effect (or permittivity). The cable uses a hybrid of seven solid-cores in a concentric stranded geometry to form each conductor core.
Optimus Reference does sound like something exploding from one of Michael Bay’s abysmal yet lucrative Transformers movies, but it’s the current flagship of Clearer Audio’s range, topping out the best-of-breed Silver-line group of pure silver and silver-plated copper cables from the brand.Ī pseudo, quad-balanced design, Optimus Reference uses 99.9999% pure silver conductors throughout, all made using the Ohno Continuous Cast process more commonly found in pure copper rather than pure silver wire.
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