Isotek V5 Sigmas aavik Their Urethane waveguide improves horizontal

Their Urethane waveguide improves horizontal directivity and provides a more precise sound image

I'm going to quote the website now

A key element of a high-end audio/video set-up

Only one in the class

Whether you already have a large collection of LPs

Isotek V5 Sigmas aavik Their Urethane waveguide improves horizontalThe Select Series V5 Sigmas Both V5 Aquarius and V5 Sigmas remain one of the most cost effective upgrades you can buy to improve your high quality audio or audio visual system. Both products will improve all audio , audio video , and network based systems including TVs and projectors, it is a full system upgrade improving all your electronics unlike any other product on the market. V5 Sigmas is a significant step forward from its EVO3 predecessor. Now