Godfrey Wilkes wrote:

Anyone familiar with Fostex full range drive units? Wilmslow Audio do
them along with cabinet kits starting from about £200 a pair but I
can't find much in the way of reviews as to how they actually perform
compared to other speakers of a similar price.




From basic priciples of physics it is easy to show that ANY 'full
range' loudspeaker is a terrible compromise. This involves analysis of
motor theory, suspension, resonances, cone break-up and plenty more
besides.

The 'average' speaker tends to perform best over about 3 octaves which
is why most decent speakers are 3 way.

The frequency coverage can be extended a little at the cost of
sensitivity, making some decent 2 way designs possible

Graham

p.s please don't post in HTML in future