KV2-Audio EX-12 Active Full Range Module

Beschrijving

500 Watt Extreme Resolution Speaker System

The
EX12 is a two-way high output, active, compact, full-range speaker
system. EX12 design objectives focused on the expansion of KV2 Audio?s
primary philosophy of increased dynamic range, very high output and a
consistent sound character no matter what the output level. The
advanced 3.00-inch compression driver and horn assembly provide
extended throw capability from a compact enclosure while 500 watts of
on-board amplification and an advanced woofer technology deliver solid
bass reproduction at high output levels.

The
EX12 sets new levels of performance for compact cabinets achieved
through the integration of new amplifier, transducer and electronic
control technologies that are closely tied to KV2?s passion for taking
performance to a higher level.

APPLICATIONS

• Small to medium-sized Live and Playback Applications
• Portable PA Systems for speech and multimedia playback
• Mobile DJ (when used with EX2.2 or EX 2.5 Active Bass Modules)
• Floor Monitoring Applications
• Fixed Installations that need to rock

Features

• High-output, extreme resolution, compact full-range speaker system
• 127 dB sustained output with very high dynamic range and low noise floor
• Integrated active amplification and control electronics with 500 total watts of power
• Complete,
  on-board speaker system management including equalization, time
  correction, crossover filters, amplifier overdrive protection, system
  set-up and output level controls
• Very
  high quality 50-watt, low IM distortion Class A/B high frequency
  amplifier with transformer-balanced output provides comprehensive
  distortion control under clipping conditions
• 450-watt high current, high-efficiency low frequency amplifier delivers high output bass with total control.
• Compact asymmetrical trapezoidal cabinet design allows for use in stage monitor or under balcony applications.
• New,
  state of the art 3.00? (76mm) diaphragm titanium compression driver
  features the first diaphragm to be treated with a Nitrate Vapor
  Particle Deposition (VPD) process that dramatically improves the dome?s
  resonance and dampening characteristics lowering distortion and
  extending frequency response. The driver features the largest neodymium
  motor in use today providing absolute control of the diaphragm
  assembly.
• Wide dispersion (80? horiz. x 40?
  vert.)
• Floor
  Monitoring Filter precisely adjusts equalization and phase response
  characteristics providing optimized monitoring performance.
• Twelve-inch
  woofer with revolutionary Active Impedance Control (AIC) voice coil
  technology and neodymium magnetic motor structure dramatically
  increases force, lowers distortion and provides increased frequency
  response linearity.
• Professional, Baltic birch construction with wear resistant polymer coating
• Proprietary
  top/side handle design for simplified handling and carrying integrates
  one M10 hang points, OmnimountTM bracket point and four M6 bracket
  points
• Two side-mounted M10 hardware points
• Top hat for pole mounting applications

Electronics

Amplifier power, electronic crossovers, phase alignment, equalization,
time correction and speaker protection are integrated into the EX12?s
amplifier module. On-board electronics ensure fast, easy set up and
complete control.
The low frequency amplifier is a high efficiency, high current design
especially developed for the EX12. This new topology improves overall
system efficiency and increases output allowing passive radiation of
heat to take place through a unique ?fin-less? heat sink that can be
placed in any position or direction. This ensures cool operation in
horizontal or vertical applications. Additionally, the EX12 amplifier
unit contains an internally located electric fan that is operated by a
temperature sensing circuit which will slowly bring the fan online as
required in extreme, high temperature situations.

Months
of research were invested into designing circuitry to ensure that the
EX12?s extreme dynamic range is maintained even under clipping
conditions. The real test of the EX12?s limits is when it is exposed to
the rigors and demands of live audio playback where clipping of
amplifiers, generation of distortion artifacts and dramatic increases
in the noise floor are all par for the course.

The
EX12?s high frequency amplifier uses KV2 Audio?s standard low
intermodulation distortion, Class A/B, push-pull topology. Metal Oxide
Silicon Field Effect Transistors (MOSFET) are used for the output stage
while the compression driver is coupled through a transformer balanced
speaker output. The performance strategy for this type of design is
based on producing the lowest intermodulation distortion possible and
providing a technique for control of distortion by-products generated
by the amplifier under clipping conditions. This provides the highest
level of performance and audio quality possible.

Acoustic Components
The compression driver is a new, 3.00-inch (76mm) titanium diaphragm
design, featuring a radial phase plug, progressive parabolic
semi-circle suspension, direct drive nomex voice coil assembly and the
industry?s largest neodymium magnetic motor structure. The largest
advancement has been made through the development of a new treated
titanium material used in the dome assembly. Through Nitrate Vapor
Particle Deposition (VPD), an additional layer of material is fused to
the titanium at a molecular level. The resultant material has
dramatically improved resonance characteristics and improved dampening
resulting in lower distortion artifacts and improved frequency response
linearity extending the driver?s response beyond 20kHz.

The
EX12 horn design was designed with two primary design goals. First
to be as smooth as possible within its operating bandwidth and second
to display perfect power response characteristics vis-?-vis
the 12-inch woofer it is designed to crossover with. The horn
design is based on constant- directivity geometry with an emphasis
on generating very low air distortion artifacts, maintaining low
transducer compression ratios, high output and wide dispersion (80?
x 40?). The horn is an injected molded aluminum part that functions
as a heat dissipator for the compression driver?s neodymium
magnetic motor structure.

Both
the compression driver and the woofer technologies were developed in
conjunction with the engineering team at KV2 Audio?s transducer
partner, 18 Sound in Cavriago, Italy. A new woofer technology has been
developed called Active Impedance Control (AIC) and it delivers several
exciting performance advantages. AIC technology consists of a carefully
designed and placed ?additional? coil placed on the speakers? magnetic
pole piece and connected in parallel to the primary voice coil. The
magnetic field generated by this additional coil has the following
effects:

1) Complete linearization of speaker impedance
2) Linearization of the acoustic and electrical phase response
3) Delivery of a significant increase in sensitivity and total SPL output
4) A remarkable reduction of Total Harmonic Distortion (THD)
5) Increased power transfer and transducer speed

All
of these benefits help minimize several weaknesses inherit in two-way
loudspeaker systems such as poor quality low-mids and the poor
transient response found in this band pass. The EX12 is transparent,
up-front and seamless in comparison to any and all competitive active
12-inch two-way designs.

Enclosure Design
The EX12 is a very compact, asymmetrical geometry enclosure design
allowing it to be used in a variety of applications and featuring a
number of ergonomically designed components that make it lightweight
and easy to use. An extensive set of professional hardware features
enables the EX12 to be used in a variety of environments using an array
of industry standard hardware. These facilitate both portable and fixed
installations with a maximum amount of mounting flexibility.

A
specially molded aluminum handle was designed and fitted to the top and
side of the cabinet. It functions as the principle pick up handle as
well as providing several fixed installation and hanging solutions. It
has a centrally located M10 hang point as well as four additional M6
bracket points. The handles four principal mounting bolts also provide
an OmnimountTM bracket point. There are two side-mounted M10 hang
points that can be used with brackets or eyebolts.

Accessories
EX2.2 Active Bass Module

The EX12 can be combined with an EX2.2 Active Bass Module in order to
create a formidable, very high output audio system. The EX2.2 is
comprised of two 12-inch woofers and features on-board amplification
and control electronics with 1000 watts of total power and can be
easily connected to the EX12 through the internal control electronics.

EX2.5 Active Bass Module
The EX12 can be combined with an EX2.5 Active Bass Module double
15-inch systems as well. The EX2.5 is comprised of two 15-inch woofers
and features on-board amplification and control electronics with 1600
watts of total power and can be easily connected to the EX12 through
the internal control electronics.

EX12-HBracket
A horizontal U-bracket designed for use with the two side-mounted M10 hang points.

EX12-VBracket
A vertical U-bracket designed for use with the top handle located M10
hang point. The kit includes a special mounting plate with integral M10
attachment point that replaces the lower top hat assembly.

WBX 60.0
Omnimount Compatible

Technical specifications