The EVF-1152D/64 features a 60° x 40° rotatable waveguide, design for far field long throw raw spread coverage pattern.
The EVF-1152D full-range systems substitute the DH7N large-format, 3-inch-diaphragm, 75-W compression driver and 500-W woofers. While the continuous maximum output of the "D" systems is unchanged (see specifications), their dynamic performance is improved. The higher power capacity of the woofers and, especially, the compression driver allow the systems to produce higher sound levels at a given level of distortion. The higher power capacity also results in less power compression, where attempts to increase the sound level are not fully realized because as the voice coils heat up their impedance rises, reducing the acoustic effiency of the speaker system.