K4 Professional Entertainment

K4 speakers left
Lenard K4 Professional Entertainment
large-scale four-way active sound systems

These systems generate a plane wave front
projecting the acoustic center forward 6db.

This gives an acoustical illusion
that the performance is closer
than it actually is.

Thus creating a 3D virtual-reality experience





K4 speakers right

audience

  Lenard   four-way   active   technology

The K4   very large scale   four-way active   integrated sound system   creates a 3D virtual reality, fully dynamic experience.   The immense clarity and realistic impact is created by the system being fully horn loaded.   Experiencing the performance being projected into the audience.   At low level the K4 also provides whispering closeness and detailed fidelity.

The effect is breathtaking.   The K4 delivers depth and earth shaking experience,   for large entertainment venues,   large cinemas   and   theme park application.


The  way  we  hear  the  natural  world

'Active'   is each speaker managed by its own amplifier, as each musician playing their own instrument.   An electronic crossover separates the frequency spectrum into 4 bands.   Each band has its own amplifiers and speakers.   The amplifiers and electronic crossover are independant or within the speaker system, depending on application.

Four-way active achieves every criteria without compromise.

Full Fidelity - Realism - Dynamic Power - Even Dispersion - Detailed Intelligibility





S y s t e m   D i m e n s i o n s

K4 drawing

Each speaker stack consists of four 15in horn bins vertically facing each other
deflecting 90deg  for wide horizontal dispersion.




          Each Stack
  • Height   (2400mm / 8ft)
  • Width   (3060mm / 10ft)
  • Depth   (440mm / 18in)
          Each 15in Horn Bin
  • Mouth  (440mm x 915mm / 18in x 36in)
  • Length   (1020mm / 44in)


  C o n s t r u c t i o n



          Systems under construction

  • The K4 systems are commissioned to order

  • The Systems are set up as line-array to any height,
    by each module pair,   per 915mm / 3ft

  • The speakers are inside the cabinets and not seen

  • The systems can blend into the environment,
    or be finished as an architectural feature

  • The speaker system and electronics
    are factory pre-fabricated and tested

  • The systems are assembled on site,
    acoustically aligned and architecturally
    finished if required

  • Licensing for fabrication and marketing is available



 John Lenard Burnett

Project prepared for Professional Entertainment


K4 finished for cinema

Project prepared for Large Cinema




  E l e c t r o n i c s

The Amplifiers

          Professional   Entertainment
  • Each speaker is driven by its own independent amplifier
    A 400 Watt amp is integrated within each speaker cabinet
    For permanent installations the 400 watt amps can be in a separate pack
    at the rear or beside each speaker stack
  • Electronic crossovers can be at the mixing consul or with each amp pack

          Cinema   Application
  • Each speaker stack is driven by an amplifier pack of six 200 Watt amps
    Each speaker is driven by its own independent amplifier
    The amplifier packs are at the rear of each speaker stack

  • An electronic crossover is included in each amp pack
    The crossover divides the frequency spectrum into 4 sections
    Re-calibration is simple to perform and the controls easily accessible

  • Line-level for (Left-Centre-Right) and (.1 Sub-Bass)
    is sent from the projector room to each of the amp packs
    The .1 Sub-Bass is sent to all 3 amp packs
    The .1 Sub-Bass is delivered through all centre-left-right bass bins
    Rears are up-graded complementing main system per application
 K4 amps

  Controls

Depth   Warmth   Presence   Sparkle

Gain controls for the amplifiers and speakers
System is pre-calibrated for free-field, with controls at centre
Re-calibration is for acoustic environment and enjoyment of performance


K4 controls


K4 speakers left K4 tec dwr K4 speakers right

        Inputs
  • XLRs male-female Balanced
  • Balanced transformer isolated
  • RCA auxiliary


         Mains power
  • IEC. 110V / 240V dedicated
  • Power is controlled for speaker protection
  • Signal detect auto soft turn on,
    with remote and manual over-ride

The K4 is the ultimate experience for the younger audience
(regardless of age) to be beamed up and blown away.

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