8
The SB750 has the same footprint as the other KF700 array modules, creating attractive clusters when all
loudspeakers are groundstacked. It also features a stacking pad that keys into the enclosure above it, providing a
safer groundstacked configuration. All groundstacked modules should also be connected with fly hardware. Sound
system designers should note that an SB750 measures nearly 4-ft in height, so that most applications will only
allow a two-high stack of subs on the deck.
IIIb – Flying SB750’s
Flying subwoofers, while unconventional, offers the designer a variety of advantages. Sightlines to performers are
completely unobstructed providing a better experience to more concert-goers. But the greatest benefit of flying
SB750’s lies in the ability to create dipolar arrays† of subwoofer devices, providing vertical pattern control within
the subwoofer pass band. This added control increases projection and apparent impact at great distances.
Additional processing also allows for subwoofer beam steering.
Unlike conventional ground stacked subwoofers, flown subwoofers lose the increased output benefit provided
by coupling to the floor. This loss of overall output could be a detriment if too few subwoofers are utilized with
a given performer.
Since KF700 Series arrays are zoned in rows to allow for AS3D® implementation, flown SB750 modules are most
effectively deployed in rows either above or below the array.
When multiple rows of SB750’s are placed at the top of an array, they provide significant subwoofer projection
and good overall vertical coverage but lack the near field impact associated with ground-stacked subwoofers.
This configuration requires additional stacked subwoofers to provide the impact associated with near field seating,
but the number of modules on the deck is greatly reduced.
Subs flown above an array
3x KF750
2x SB750
1x SB750
1x KF755
†
For more information on Dipolar Array Technology, visit the Technology Section of EAW's website:
www.eaw.com/pages/TechSupport/Technologies/NewConcepts/TDA.html
Summary of Contents for KF750 Series
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