| KF850EF |
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Last Modified: 2002-10-28
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As of March 1, 2004 the KF850EF will be special order only. On July 1, 2004 the KF850EF will be discontinued and will no longer be available. It is replaced by the all-new KF850z.
- Triamplified VAT 3-way system
- Horn-loaded LF/MF/HF (55° x 40° coverage pattern)
- 15 in LF/10 in MF/2 in exit HF
- P (install) or F (touring) versions available
- Digital signal processor required to achieve specified performance
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| General Application |
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| Touring |
| Install |
Size
Medium/Large |
Description
A 3-way tri-amplified full range system in a trapezoidal enclosure. Includes a 15 in woofer in a wave guide cavity with ARCT device, a horn-loaded 10 in midrange cone and a 2 in exit compression driver mounted coaxially in the wave guide cavity on a 55° x 40° constant directivity horn.
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Applications
The KF850 Virtual ArrayT loudspeaker is the world touring standard, accepted in more technical riders than any other loudspeaker. True 3-way design dramatically improves the quality of vocal reproduction while the cone-driven midrange horn and horn-loaded woofer extend pattern control to the lowest octaves. Effective for large format permanent or portable applications.
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Physical |
| System Configuration |
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3-way, full range |
| Product Group |
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S |
| LF Subsystem & Loading |
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One 15 in woofer, wave guide |
| MF Subsystem & Loading |
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One 10 in cone, horn-loaded |
| HF Subsystem & Loading |
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One 2 in exit/3 in voice coil compression driver on CD horn |
| Operating Mode |
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Tri-amplified only |
| Enclosure Material |
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Exterior grade Baltic birch plywood |
| Finish |
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Wear resistant textured black paint |
| Connector |
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One male AP6, one female AP6 |
| Suspension Hardware |
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Four 19-postition fly tracks |
| Grille |
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Powder coated perforated steel, foam backed |
Dimensions (±0.13 in / ±3 mm) |
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| Height |
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42.00 / 1067 |
| Front Width |
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26.38 / 670 |
| Rear Width |
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16.50 / 419 |
| Depth |
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29.50 / 749 |
| Trapezoid Angle (degrees) |
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9.5 per side |
Weights (pounds / kilograms) |
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| Net Weight |
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250.0 / 113.6
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| Shipping Weight |
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258.0 / 117.3 |
Performance |
| Frequency Response |
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| ±3 db |
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86 Hz to 17 kHz |
| -10 dB |
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65 Hz |
| Recommended High-Pass Frequency |
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60 Hz, 24 dB / octave |
Axial Sensitivity (dB SPL, 1 watt @ 1 m) |
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| LF |
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102 |
| MF |
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109 |
| HF |
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112 |
Nominal Input Impedance (ohms) |
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| LF |
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8 |
| MF |
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8 |
| HF |
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10 |
Power Handling (watts, continuous) |
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| LF |
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1000 |
| MF |
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400 |
| HF |
|
200 |
Calculated SPL Limit (referenced to 1 m) |
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| LF Peak |
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138.0 |
| MF Peak |
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141.0 |
| HF Peak |
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141.0 |
| LF Long Term |
|
132.0 |
| MF Long Term |
|
135.0 |
| HF Long Term |
|
135.0 |
| Nominal Dispersion (degrees @ - 6 dB) |
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| Horizontal |
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55° |
| Vertical |
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40° |
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