KV2 Audio ESR215 User Manual - Technology
The ESR215 is a 3-way high output, active-driven,
full range Loudspeaker 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 reinforcement 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
resolution.
Advanced compression driver
KV2 Audio’s transducer partner, 18 Sound in
Cavriago, Italy, manufactures 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.
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 combination provides optimal cone loading
and heat dissipation. Further loading and dispersion
is controlled through A precision phase plug.
Heat-resistant midrange
Midrange frequencies between 400Hz and
2.5kHz are reproduced by 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 assembly and magnetic structure
is poor and failure rate from heat fatigue is high.
The ESR215 midrange dissipates 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 dramatically 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 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 extraordinary
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 ergonomically
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 flexibility.
Technology
ESR215
ESR215
Technology
Technology
Specifications
14
13
ESR215 rear panel
Cable connection to ESR3000 unit
Amplifier/Controller