FB Fiberglass PHD Audiophile Sound Systems. Started with just one line of speakers in 1990 and this is the natural evolution of the first line that we ever manufactured. Designed to be the best, a milestone for the industry, this line has set the standard for performance and sound quality over the decades. The Fiberglass cone single layer for regular FB products and dual layer for.
Is the key element for the reproduction of the detailes together with a smooth. Three Way System with two 1.1 Tweeters, two crossovers, two FB 2.5 WMT Full Range and two FB 6.1 Mid/Basses. 1 Silk Dome Neodymium Tweeter. 2.5 Fiberglass Cone WMT Full Range Driver with High-Tight Fiber Basket. 6.5 Fiberglass Cone Mid/Bass Driver with High-Tight Fiber Basket.12dB Two Way Passive Crossover.