EAW KF300z User Manual

A 3-way full range loudspeaker in a vented trapezoidal enclosure. Includes a 12-in woofer, a horn-loaded 7-in midrange cone with Radial Phase Plug™, and a 1.4-in exit compression driver on a 90° x 45° constant directivity horn. The internal crossover is user-switchable for either passive or bi-amp operation (with a passive LF/MF crossover). The enclosure has six fly points, three each top and bottom, plus an integral pole mount cup. Handles are located for the best balance when carrying.

The KF300z is one of the smallest, full-range, 3-way loudspeakers available. It is particularly suited for portable or installed applications, including band PA, club systems, corporate AV, and theatrical productions. The midrange section incorporates a 7-in radial phase plug based on EAW’s patented 10-in Radial Phase Plug™ used in other KF Series prod u cts. This design produces a time-coherent midrange wavefront that is critical to ensuring good vocal articulation. The appearance of the KF300z is enchanced with a curved gille that matches other KF300 as well as companion KF600 Series products. Six year warranty.

SPECIFICATIONS KF300z

One Main Street, Whitinsville, MA 01588 508 234 6158 Toll Free 800 992 5013 FAX 508 234 8251 info@eaw.com www.eaw.com EAW products are continually improved. All specifications are therefore subject to change without notice. KF300z/0002675/2 pp April 2002 Printed in USA

Part Number 0001325

LF Subsystem & Loading 1x 12-in, vented MF Subsystem & Loading 1x 7-in horn-loaded cone HF Subsystem & Loading 1x 1.4-in exit/2.5-in diaphragm

compression driver on constant directivity horn

System Configuration 3-way, full-range

Powering Configuration(s) Switchable full-range or bi-

amplified (passive LF/MF crossover)

Controls (switches, knobs) Powering mode switch

Recommended High-Pass

Frequency (12 dB/octave) 80 Hz

Enclosure Materials

Exterior grade Baltic birch plywood

Finish

Wear resistant textured black paint

Connectors 2x Neutrik NL4 Speakon

Mounting Hardware 6x 3-position flytracks with

integral 3/8”-16 threaded mounting/suspension points (3 each top & bottom), recessed cup for standmount

Grille Powder coated perforated steel,

foam backed

Frequency Response (Hz)

±3 db 100 Hz to 20 kHz

-10 dB 80Hz

Axial Sensitivity (dB SPL/1 Watt/1m)

Passive 92

LF/MF 92

HF 101

Impedance (Ohms)

Passive 4

LF/MF 4

HF 8

Power Handling, AES Standard (Watts)

Passive 750

LF/MF 750

HF 200

Calculated Maximum Output (dB SPL, @ 1m)

Full Range Peak 127.0

Bi-amped LF/MF Peak 127.0

Bi-amped HF Peak 130.0

Full Range Long Term 121.0

Bi-amped LF/MF Long Term 121.0

Bi-amped HF Long Term 124.0

Nominal Coverage Angle / -6 dB points (degrees)

Horizontal 90

Vertical 45

PHYSICAL

DESCRIPTION

APPLICATION

PERFORMANCE

SPECIFICATIONS KF300z

DIMENSIONAL DRAWING

A & E SPECIFICATIONS

The 3-way full-range loudspeaker shall incorporate a vented 12-in LF transducer, a 7-in horn-loaded cone MF transducer with Radial Phase Plug™, and a 1.4-in exit / 2.5-in diagphragm HF compression driver on a constant directivity horn. The MF/HF horn shall have a nominal beamwidth of 90° (h) x 45° (v).

System frequency response shall vary no more than ±3 dB from 100 Hz to 20 kHz measured on axis. In passive mode, the loudspeaker shall produce a sound pressure level (SPL) of 92 dB SPL on axis at 1 meter with a power input of 1 watt, and shall be capable of producing a peak output of 127 dB SPL on axis at 1 meter. It shall handle 750 watts of amplifier power (AES Standard) and shall have a nominal impedance of 4 ohms.

In bi-amped mode, the LF/MF section shall produce a sound pressure level (SPL) of 92 dB SPL on axis at 1 meter with a power input of 1 watt, and shall be capable of producing a peak output of 127 dB SPL on axis at 1 meter. It shall handle 750 watts of amplifier power (AES Standard) and shall have a nominal impedance of 4 ohms. In addition, the HF section in bi-amped mode shall produce a sound pressure level (SPL) of 101 dB SPL on axis at 1 meter with a power input of 1 watt, and shall be capable of producing a peak output of 130 dB SPL on axis at 1 meter. It shall handle 200 watts of amplifier power (AES Standard) and shall have a nominal impedance of 8 ohms.

The loudspeaker enclosure shall be trapezoidal in shape. It shall be constructed of exterior grade Baltic birch plywood and shall employ extensive internal bracing. It shall be finished in wear resistant te xtured black pain t. Input conn ectors shall be 2x Neutrik NL4 Speakon. The system shall include a switch allowing it to be operated in passive or bi-amp powering mode. A total of six 3-position flytracks with integral 3/8"-16 threaded mounting/suspension points (3 each top and bottom) shall be provided. The front of the loudspeaker shall be covered with a powder coated perforated steel grille backed with open cell foam to protect against dust.

The 3-way full-range loudspeaker shall be the EAW model KF300z.

PHYSICAL continued

Dimensions inches millimeters

Height 27.5 699

Width (Front) 14.8 375

Width (Rear) 9.5 241

Depth 15.4 391

Trapezoid Angle 10 degrees per side

Weights pounds kilograms

Net Weight 87 39.6

Shipping Weight 95 43.2

Manufacturing tolerances are +/- 0.13 and +/- 1°

7.66

9.19

3.90

2.12

23.23

(2.13)

KF300z

2X 3.62

HANDLE

5.91

8.69

INPUT

5.00

5.75

6.37

VIEW A-A

DIMENSIONS APPLY TO

BOTH SIDES

NOTES:

1. SYMBOL INDICATES MOUNTING POINT, 3/8-16 THREADED HOLE (FLY TRACK).

2. SYMBOL INDICATES 3.00 x 1.35 FLY TRACK.

3. SYMBOL INDICATES CENTER OF BALANCE.

4. WEIGHT APPROX. 87 LBS.

5. SHIPPING WEIGHT APPROX. 95 LBS.

4.00

ACCESS PANEL

BACK

(9.56)

7.66

15.40

R 42.

27.50

TOP HAT

9.87 20°

TOP

DIMENSIONS APPLY TO

TOP & BOTTOM

14.75

FRONT

GRILLE PARTIALLY SHOWN

BOTTOM

(2.13)

23.23