EAW KF400C Specifications

System
Features:

• High Output 137 dB
SPL

• Wide Bandwidth 40 to 20,000 Hz (with

Optional TAD Driver) enabling the
reproduction of all the subtleties in
modern electronic keyboard based music.

• Advanced Mid-Bass Forsythe

MR102L for low distortion vocal
reproduction at high sound pressure
levels.

• Constant Horizontal Coverage 90
degrees to 16k Hz is ideal for side stage
monitor or large cluster use.

- High Technology RCF LAB
Drivers including the new RCF
L18/851 18-in driver with 1000 watts
AES power handling.

Introduction Applications

The EAW Forsythe Series KF400 is an all The KF-400 is intended for use in high

level
horn loaded high output, three way, sound sound reinforcement, music playback, motion
reinforcement loudspeaker system. Its "One picture sound, and performing arts appli
Box" design permits ease of transport and also cations. It will produce sound pressure levels
of
ensures optimum driver alignment and greater than 135 dB @ 1m over the 40 to
16,000
integration for ideal frequency and phase Hz band. Its ability to provide natural sonic
response linearity. The KF400 benefits from the reproduction nearfield at high sound pressure
years of development EAW has amassed since levels make it a natural side stage monitoring
we introduced the world's first "One Box" horn -system. As with all EAW horn loaded
systems,

Secti

on

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.