Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. PRELIMINARY January 2004
KF850zR Specifications group · S
preliminary
FEATURES
• Tri-amplified VA™ 3-way full-range system
• Touring industry standard
• Stackable version without fly-track hardware; 20% weight savings
• Companion SB850zR subwoofer
DESCRIPTION
The KF850 Series has been the touring system standard for well
over ten years, being acceptable in more technical riders than any
other loudspeaker. The KF850z incorporates a number of advances
in loudspeaker technology and performance developed over that
time by EAW Engineers. The result is a KF850 with higher impact
and fidelity than ever before.
Legendary KF850 performance is enhanced with a neodymium,
Orbital Magnet Array™ HF driver offering increased surface area for
better cooling, and higher reliability. A new HF horn extends HF
response and fidelity while minimizing throat distortion. The critical MF
subsystem is based on EAW's Radial Phase Plug™ design used in
the KF650, KF750, and KF760. An optional user-installed, passive
MF/HF crossover kit allows more economical, bi-amplified operation.
The KF850z's advanced performance will not be sonically
compatible with exsiting KF850E inventories. To facilitate
integration, kits are available to upgrade them to the KF850z. The
KF850z's enclosure is fully compatible with the KF850E Series.
However, the "z" enclosures incorporate a stacking pad on top that
mates with a recess in the bottoms. KF850z DSP processor settings
are available online for EAW's MX8750 as well a select group of
other popular touring processors.
KF850 Series applications continue to include: concert tours,
corporate events, large theaters, stadiums, cathedrals, large live
music clubs. Six year warranty.
3-WAY FULL-RANGE TRI-AMP
See TABULAR DATA notes for details
CONFIGURATION
Subsystem
Transducer Loading
LF 1x 15 in cone Horn-loaded
MF 1x 10 in cone Horn-loaded
Radial Phase Plug™
HF 1x 2 in exit, 3 in voice Horn-loaded
coil neodymium compression driver
Operating Mode
Amplifier Channels External Signal Processing
Tri-amp LF, MF, HF DSP w/3-way filters
PERFORMANCE
1
Operating Range 75 Hz to 20 kHz
Nominal Beamwidth
Horz 55°
Vert 40°
Axial Sensitivity (whole space SPL)
LF 101 dB 75 Hz to 250 kHz
MF 109 dB 250 Hz to 1050 Hz
HF 112 dB 1050 Hz to 20 kHz
Peak Sensitivity (whole space SPL)
LF 106 dB 20 Hz to 20 kHz
MF 111 dB 20 Hz to 20 kHz
HF 116 dB 20 Hz to 20 kHz
Input Impedance (ohms)
Nominal Minimum
LF 8 7.7 @ 120 Hz
MF 8 9.7 @ 1000 Hz
HF 8 9.2 @ 5010 Hz
Recommended High Pass Filter
High Pass =>40 Hz, 24 dB/octave
Accelerated Life Test
2
LF 75 V 700 W @ 8 ohm
MF 56 V 400 W @ 8 ohm
HF 40 V 200 W @ 8 ohm
Calculated Axial Output Limit (whole space SPL)
Average Peak
LF 129 dB 135 dB
MF 135 dB 141 dB
HF 135 dB 141 dB
ORDERING DATA
Description Part Number
KF850zR Black 0007587
Optional Accessories
KF850z/SB850z caster pallet 0007683
KF850z/SB850z caster pallet kit 0008835
KF850z bi-amp crossover kit* 0007951
KF850z upgrade kit [AP6] 0006241
KF850z upgrade kit [NL8] 0006242
* The bi-amp crossover kit can only be used on a factory-built KF850z. It cannot be used on a KF850
originally manufactured as an “E” series and later upgraded to a KF850z.
1 To achieve specified performance, the listed external signal processing with EAW-provided settings is required.
2 For recommendations to select power amplifier size refer to : “HOW MUCH AMPLIFIER POWER DO I NEED?” on the EAW web site.
(2 pages)
(32 pages)
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