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The three horns integral to the KF-550 were developed by
Kenton Forsythe and conform precisely to the mathematical
models by using a proprietary, polyurethane foam,
reinforced hardwood construction technique. This results in
exceptionally smooth air loaded impedance characteristics
for a smooth frequency response and efficiency unmatched
by other. high fidelity systems.
Frequency Response Single Unit Quad Array High Frequency -
- 10 dB: 42 to 18k Hz 35 to 18k Hz Driver: (1) Two inch exit Compression
+ 3 dB: 55 to 14k Hz 45 to 14k Hz Driver
Sensitivity: 109 dB SPL 1w@ 1m JBL 2445 (user supplied) or
Coverage Angle TAD 4001 (user supplied)
Horizontal: 80 degrees - 6 dB Power Handling: 100w Pink Noise
Vertical: 40 degrees - 6 dB Horn Type: Forsythe designed, Constant
Maximum SPL: 131 dB with 6 dB headroom Horizontal coverage horn
Crossover Data Nominal Impendance: 16 ohms
LF Band Limit: 35 Hz 18dB /octave General -
LF/MF: 250 Hz 18dB/ octave Finish: Catalyzed Black Polyrethane
MF/HF, 1,500 Hz 18dB/ octave Construction: Cross-Grain Laminated Birch
Low Frequency - Hardwood with Polyurathane
Driver: (2) RCF LAB L15/554 Reinforcing
380mm (15 in) Connectors: Cannon EP-8-14 Male and
Power Handling Female plus Banana Plug Test
100 Hour Sine Wave: 400w Points
100 Hour IEC Noise: 800w Flying Hardware: One EAW Flying Strip per Side
AES Standard: 1000w Enables Eight Different Angles
Horn Type: Forsythe designed dual driver, with Two Straps
bent horn Hardware: Six Heavy Duty Recessed
Nominal Impedance: 4 ohms Handles
Optional Transport Cover
Mid Frequency - Transport: Slant Back Provided for
Driver: (1) RCF LAB L12 P11W Optional Castors
300mm (12 in) Simple Tilt and Roll Transport
Power Handling Dimensions: 825nun H x 1365mm W x
100 Hour Sine Wave: 150w 756mm D
100 Hour IEC Noise: 300w 32.5" H x 533/4"W x 293/4'D
AES Standard: 375w Weight: Net: 210 - 325 lbs
Horn Type- Forsythe designed constant hori- Shipping: 220 - 340 lbs
zontal coverage, mid bass horn (depending on configuration)
with integral displacement plug
Nominal Impedance: 8 ohms