KV2 Audio’s philosophy has always been to embrace the principles of point source
speaker system design to provide optimum sound quality and coverage for
applications and audiences of all sizes.

Utilising advanced point source speaker design, efficient power management
amplifier technology and hybrid signal processing, Chief Engineer George Krampera
and his team have created the first major advancement in large concert sound
reinforcement since the development of the Line Array, namely the new VHD5.0
Constant Power Source Array.

Up until now, the company’s flagship had been the VHD2.0 Large Format Point
Source System, with the capability of covering crowds in excess of 10,000 people
with just one or two enclosures per side. The challenge for KV2 in building even
larger point source systems for audiences of 50,000 people plus, was to reproduce
the low-mid energy that certain line arrays provide though the summing of multiple
drivers, while maintaining the key benefits of point source technology, being
minimal destructive interference in the higher frequency range and accurate
impulse response.

The development of the Line Array was an improvement over the composite box
type systems of the eighties. Having all components in a single axis array solved
certain issues in respect to the comb filtering problems in the horizontal plane but
did not overcome the destructive interference occurring vertically and the loss of
high frequencies through air disturbance caused by wind and audience heat.

To cover very large crowds needs a large system capable of delivering high SPL and
running multiple components. To do this as one large point source enclosure is
somewhat limiting, since it would be almost impossible to move around or
transport. With VHD5.0 Constant Power Point Source Array, KV2 has focused on
creating a modular system that has as little destructive interference as possible
when utilising multiple components in a number of cabinets. High frequencies are
carefully separated while the mid-range horns are coupled, providing maximum
output and coverage. VHD 8.10 Low Mid Expansion Boxes are arrayed around the
mid-high enclosure, providing the extra headroom needed to deliver the low mids
and keep the sound balanced. In essence the system is pieced together to represent
one very large point source rather than placing multiple narrow dispersion speakers
next to each other such as those found in line arrays or other point source arrays.

The VHD5.0 is a three-way enclosure handling low-mids, mids and highs over a
frequency range from 50Hz through to 20KHz. It incorporates eight front-loaded ten
inch low-mid drivers, six horn loaded eight inch mid-range drivers and two
beryllium compression drivers on a custom designed dual horn with summing
waveguide. The VHD 5.0 covers the frequency range from 50Hz to 20KHz but is
usually crossed over at 70Hz to the VHD4.21 sub bass modules.

KV2’s new flagship VHD5.0 Constant Power Point Source System is thus a true feat
of sound engineering. Over three years in development, it provides a true
advancement in large scale concert sound reinforcement. It provides sound quality
over large areas with clarity and definition simply not achievable from the digitally
processed line arrays that are so commonly used.