Review on Computer Shopper

Sleek’s SA6 earphones premiered at CES in Las Vegas last week, and we’ve got our hands on the first pair to make it to the UK. The earphones and their cable are separate units, which can be connected using tiny gold-plated connectors. This eliminates the most easily damaged part of any pair of headphones - the sealed connection to the cable.

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Even more innovative is Sleek’s patent pending Virtual Equalization (VQ) system, which lets you customise your earphones to make bass and treble frequencies more or less intense. The earphones come with three interchangeable high frequency treble tips - the plastic part which protrudes from the front of the units and pipes sound to your eardrum. Changing these has a noticeable effect on the volume of the high range relative to the rest of the sound.

Bass power can also be tweaked to match your own listening preferences, with interchangeable rubber bass ports which plug in to the back of the earphone units. Switching between them alters the power and perceived depth of bass tones. The interchangeable parts made audible differences to the earphones’ output, allowing us to mix and match for an optimal listening experience, but the sound remained well balanced, with no one element being totally overpowered by any other.

We think this makes for a high quality sound, although it may disappoint those who prefer their music to be completely dominated by either the bass or the treble. The earphones come with flanged sleeves which provide some degree of sound isolation, although we’d have liked to see the option of other types of sleeve in addition to these.