KV2 Audio ESR215 - Manual (Page 14)

ESR215 rear panel (cable connection to ESR3000 unit Amplifi er/Controller)
Technology
ESR215
Technology
14
Wide dispersion horn
The ESR215 features a mid/high
integrated horn design with a
number of unique features. The
horn design is based on constant
directivity geometry with an
emphasis on maintaining low
transducer compression ratios, high
output and wide dispersion (110˚ x
40˚). The midrange speaker with
precisely designed heat sink
midrange “chamber”. The combina-
tion provides optimal cone loading
and heat dissipation. Further
loading and dispersion is controlled
through precision phase plug.
Heat-resistant midrange
Midrange frequencies between
400Hz and 2.5kHz are reproduced
by a eight-inch midrange speaker
that provides 108 dB of sensitivity
(1 watt / 1 meter) when coupled
with the integrated horn. The
magnetic motor assembly features a
high temperature 3” (76mm)
diameter voice coil assembly and
extensive use of neodymium.
Because of the limited linear
movement of most midrange
transducers - usually 2-3mm -
ventilation of the voice coil assemb-
ly and magnetic structure is poor
and failure rate from heat fatigue is
high. The ESR215 midrange dissipa-
tes heat passively through the use
of a massive heat sink midrange
chamber. When combined with the
ESR3000 unit control electronics,
the system provides high output
levels safely and consistently over
infinite periods of time and dramati-
cally reducing heat associated
transducer problems such as power
compression and decreased
dynamics.
Neodymium bass transducer
The ESR215 features a
fifteen-inch ferrite bass speaker with
front loaded bass reflex design.
Great advantage of the ferrite
structure is long-term stability of
parametres and relative resistances
to high temperatures.
The fifteen-inch mid bass driver for
the ESR215 was designed by 18
Sound.
The ESR215 bass transducer
reproduces frequencies from 35Hz
to 500Hz. The bass transducer is
very precise and fast with high
sensitivity. The high efficiency
ferrite motor provides an extraordi-
nary amount of force that delivers
complete control of the cone mass
and a high overall weight loss.
Easy to set up
The ESR215 is an aesthetically
pleasing - looking enclosure
featuring a number of ergonomical-
ly designed components that make
speaker easy to set up and use.
ESR215 features the two top
handles for pick up and reposition
with additional M10 suspensions
point.
There are six industrial grade,
internal braces placed at each
corner and one internal brace on
the back. Corner braces are held in
places by two M10 bolts, the back
brace is held by two M6 and one
M10, providing a wide range of
installation and suspension flexibili-
ty.
The ESR215 is a 3-way high output,
active-driven, full range Loudspea-
ker module. It is designed as part of
a sound reinforcement speaker
system that includes the ESR3000
system control and amplification
system.
The ESR215 Loudspeaker
system benefits from being
designed exclusively to operate
above 35 Hz. By optimizing the ideal
operating band pass of each system
component, the ESR215 can achieve
extremely high output levels
consistently and safely.
Active-driven by the ESR3000 unit
Power, electronic crossovers,
phase alignment, equalization, time
correction and speaker protection
are provided within the ESR3000
unit.
This “one plug in, one-plug-out”
system ensures fast, easy set up and
complete control. It gives you the
benefits of active sound reinforce-
ment technology, yet locates the
electronics in an easy-access
rackmount module.
Together, the ESR215 and
ESR3000 unit deliver the highest
dynamic range of any system
currently available, providing new
levels of clarity, depth and resoluti-
on.
Advanced compression driver
KV2 Audio’s transducer partner,
18 Sound in Cavriago, Italy, manu-
factures and co-develops all ESR215
components. The compression
driver is a 3-inch nitride-titanium
diaphragm design, featuring a
complex geometry phase plug that
dramatically lowers distortion,
eliminates ring modes and provides
clearer, ripple free performance.