Bosch EVF-1181S EVF-1181S-PIB User Manual

EVF-1122S and EVF-1152S

Medium-Power Series Acoustic Performance

Each EVF-1122S loudspeaker is a compact, 12-inch two-way full-
range system. Each loudspeaker contains an SMX2121 12-inch 
400-W woofer and one ND2B medium-format, 2-inch-diaphragm, 
40-W neodymium high-frequency compression driver on a 12-inch-
square rotatable waveguide. Six waveguide patterns are available, 
from medium- to short-throw and some with extended, 60° or 90° 
vertical coverage: 60° x 40°, 60° x 60°, 90°x 40°, 90° x 60°, 90° x 90° 
and 120° x 60°. This broad selection makes it much easier to create 
a cluster that precisely addresses your space.

Each EVF-1152S 15-inch system employs the SMX2151 15-inch 
woofer, providing sensitivity 3 dB higher than an EVF-1122S system 
and very high for a front-loaded system: 101 dB 1 W/1 m. The EVF 
15-inch systems trade the very-short-throw/very-wide-angle
120° x 60° pattern of the EVF-1122S/126 for the long-throw/
narrow-angle 40° x 30° pattern of the EVF-1152S/43, for seven 
coverage patterns overall.
  

EV- Innovation

ND2B Medium-Format

High-Frequency Compression Driver

SMX Low-Frequency Transducer with 
fully symmetric drive