The new very high bass speaker Yield (98.5 dB) offers you a serious Fast, deep and very nice to Listen. It uses the same mobile crew as the 400-2000. Its difference is at the level of the Engine, since he uses a ferrite of 220 Mm instead of the Alnico. His qualities allow him to be directly coupled with a motor 1 thumb mounted on our pavilion. Mounted in a bass-reflex enclosure or jensen, cut at 500Hz, the curve of response will be straight at ± 2 dB until Final motor frequency 1 inch. The Also perfectly suits a Grave case use (load Symmetrical). With an extremely low FS of the order of 20Hz, it will be the top speaker par excellence for developing a high quality box of bass.