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ESR215MkII · Technology
Technology
The ESR215MkII 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 ESR3000MkII system control and amplification system.
The ESR215MkII Loudspeaker system benefits from being designed exclusively to operate above 35Hz. By optimizing the ideal
operating band pass of each system component, the ESR215MkII can achieve extremely high output levels consistently and safely.
Active-driven by the ESR3000MkII unit
Power, electronic crossovers, phase alignment, equalization, time correction and speaker protection are provided within
the ESR3000MkII 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 ESR215MkII and ESR3000MkII 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 ESR215MkII 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 ESR215MkII 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 108dB
of sensitivity (1 watt / 1 meter) when coupled with the integrated horn. The magnetic motor assembly features a high
temperature 3" (76 mm) diameter voice coil assembly and extensive use of neodymium. Because of the limited linear
movement of most midrange transducers - usually 2-3 mm - ventilation of the voice coil assembly and magnetic structure
is poor and failure rate from heat fatigue is high. The ESR215MkII midrange dissipates heat passively through the use of
a massive heat sink midrange chamber. When combined with the ESR3000MkII 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 ESR215MkII 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 ESR215MkII 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 ESR215MkII is an aesthetically pleasing - looking enclosure featuring a number
of ergonomically designed components that make speaker easy to set up and use.
ESR215MkII 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.
ESR215MkII rear panel
Cable connection to ESR2800/3000MkII unit
Amplifier/Controller
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ESR215MkII ·
Technolo
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