Fyne Audio F1-5 Bookshelf SpeakerF1 5 The F1 5 bookshelf speaker from Fyne Audio takes the same technology as its larger F1 8 sibling, distilling it into a neat bookshelf design. The hand crafted cabinet is supported on compact machined aluminium plinth that houses Fynes state of the art BassTrax LF diffuser. Surrounded by a FyneFlute rubber surround, the F1 5 features a 125mm IsoFlare low frequency driver mated to a 19mm magnesium dome compression tweeter to create a point source,