Section
The KF400 makes use of a vented low
frequency horn with a RCF LAB L18/851 440mm
0 8-inch ) bass driver. This design offers full horn
loading and flat response down to 90 Hz, with
extended usable response down to 40 Hz. The
horn uses a true mathematical exponential flare
for maximum output and response linearity. The
flare is constructed of 3mm birch with
polyurethane foam reinforcement for best
rigidity.
Mid Frequency
Section
The mid-frequency section of the KF400
consists of EAW's famous MR102L mid bass
horn and RCF LAB L12/P11W 300mm (12-in)
driver. This design is in use in hundreds of
systems throughout the world. It has become
the recognized standard where sonic quality is
the first priority. It provides smoother response,
lower distortion and better pattern control than
any other device on the market.
High Frequency Section
The high frequency section of the KF400
consists of the EAW HF590Z constant coverage
horn and TAID 4001 or EC320A high frequency
driver. For applications where maximum high
frequency energy is required, the TAD 4001
driver offers flat response up to 20,000 Hz. The
NEW HF590Z provides uniform coverage to
beyond 16,000 Hz
Architect's & Engineer's
Specifications
The loudspeaker system shall be of the three-way type,
with all component drivers horn loaded. The mid and high
frequency horns shall provide a minimum of 90 degrees
horizontal coverage to beyond 16,000 Hz. Mid frequency
horn shall utilize a center displacement plug for off axis
response to 1,500 Hz +- 4 dB. The bass horn shall be of the
vented horn type incorporating one 18-inch low frequency
loudspeaker. The system shall meet the following
performance criteria: Frequency range:40 to 20k Hz.
Pressure sensitivity: 106 dB SPL I w@1m LF, 109 dB PSL 1
w@1 m MF and 110 dB SPL 1 w@1 m HF. Power Handling
in accordance with AES standard specification: 1000 watts
LF, 400 watts MF, 100 watts HF. Horizontal coverage: 90
degrees between -6 dB points.
The cabinet shall be constructed of void-free
crossgrain-laminated birch plywood with polyurethane
foam reinforcing for the mid and low frequency horns and
coated with catalized polyurethane finish. All the drivers
shall be protected with a perforated steel grill coated in
vinyl.
The loudspeaker system shall be the Eastern Acoustic
Works model KF400.
