Hi, I use home made full range planar speakers in my living room, my sun room and in my music room outside in my garage, I have a pair of 4' x 2' x 2.5" planars made with ferrite magnets I am also testing one speaker, the same size but using neodinium magnets, just to check the difference in sensitivity. In my sunroom I did have a pair of 7' x 2' x 2.5" full range planars using ferrites with no crossovers. Then I built a pair of full range ones using neo's size 21.75" x 24" x 2.5" which were 3db louder than the 7' ones. I have 3 pairs of full range planars also without crossovers, 2 with ferrites size 4' x 3' 1 sized roughly 19" x 24" 2.5" in a trapezoid shape using neos instead of the ferrites. 1 pair of the larger ferrite ones have been running for twenty years now, without any problems. 1 of the speakers in the living room were struck by lightening which burnt the aluminium foil in a couple of places and it blew a fuse and a ef86 valve in my diy p/p valve amp. I rebuilt the membrane for about £2 a bit cheaper than a maggy or a apogee membrane. I can recomend these diy full planars using either of the magnet types. Regards Anthony.All my diy full range speakers do not require subwoofers and all go down to about 30hz.