Toa LE-M124, LE-M94, LE-M42, LE-M64 Specifications

TOA SPEAKER SYSTEM

CONSTANT DIRECTIVITY HORN

LE-M124/LE-M94/LE-M64/LE-M42

DESCRIPTION

The LE Series constant directivity horns employ original
TOA technology to meet stringent professional standards
that always call for precise directivity control, high
efficiency and excellent sound quality. They are ideally
suited for such applications as theaters, concert halls,
auditoriums, movie houses and churches.
The TOA LE Series constant directivity horns employ
different formulas to optimize the horizontal and vertical
side wall contours. Also, both side walls are so arranged
as to allow the mouth to most closely approach an
equiphase surface. These factors combine to make the
horns geometry ideal for maintaining uniform directivity
over the rated frequency range.

Each horn has a crossover point of 500Hz and above
when used as part of an HFD-260 system, or 800Hz and
higher with the HFD-220 system. Frequency response is
uniform over the full frequency range from 800Hz to 16kHz
at any point (2kHz to 20kHz vertically) within the rated
coverage angle.
controlled coverage angle of: LE-M124: 120 x 40 degrees;
LE-M94: 90 x 40 degrees; LE-M64: 60 x 40 degrees, and
LE-M42: 40 x 20 degrees.

The horns have a horizontal by vertical

Each LE Series horn comes with a 2 in. (49mm) throat
diameter for mating with a TOA HFD-280-8/16 or HFD-

220-8/16 high-frequency compression driver. Horn
construction is of solid polyurethane of sufficient thickness
to suppress resonance.

FEATURES

1. Original TOA horn design ensures precise directivity
and high sound quality.

2. Excellent horizontal and vertical dispersion control
over a frequency range of 800Hz to 16kHz.

3. High efficiency and smooth frequency response.

4. 2 in. (49mm) throat diameter.

5. Resonance-free rigid construction.

6. Matching support bracket attached.

LE-M124

APPEARANCE AND DIMENSIONAL DIAGRAM

CHARACTERISTIC DIAGRAMS

l

Coverage Angle vs Frequency (-6dB)

l

Directivity Factor vs Frequency (Q)

l

Polar Response (1/3 Octave Pink Noise)

500Hz

4kHz

 Horizontal ----- Vertical

1kHz

6kHz

2kHz

16kHz

LE-M42

APPEARANCE AND DIMENSIONAL DIAGRAM

CHARACTERISTIC DIAGRAMS

Coverage Angle vs Frequency (-6dB)

Polar Response (1/3 Octave Pink Noise)

 Horizontal

Directivity Factor vs Frequency (Q)

---- Vertical

500Hz

4kHz

1kHz

8kHz

2kHz

16kHz

LE-M64

APPEARANCE AND DIMENSIONAL DIAGRAM

CHARACTERISTIC DIAGRAMS

 Coverage Angle

 Polar Response (1/3 Octave Pink Noise)

vs Frequency (-6dB)

 Directivity Factor vs Frequency (Q)

  Horizontal

-----Vertical

500Hz

4kHz

1kHz

8kHz

2kHz

16kHz

LE-M94

APPEARANCE AND DIMENSIONAL DIAGRAM

CHARACTERISTIC DIAGRAMS

 Coverage Angle vs Frequency (-6dB)

 Polar Response (1/3 Octave Pink

Noise)

 Directivity Factor vs Frequency (Q)

-----

  Horizontal

Vertical

500Hz

4kHz 8kHz

1kHz

2kHz

16kHz

SPECIFICATIONS

Model No.
Coverage Angle

Horizontal (-6dB)

Vertical (-6dB)

Crossover Frequency

Throat Diameter
Applicable Drivers

Construction
Dimensions

Mouth Height
Mouth Width

Length

Weight

LE-M124

120° (+23°, -13°)

(400Hz to 20kHz)

40° (+17°,

(2kHz to 20kHz)
500Hz or more

(HFD-260-8/16 is
used.)
800Hz or more
(HFD-220-8/16 is
used.)

2"

HFD-260-8/16
HFD-220-8/16

Solid polyurethane

13.39" (340mm)

10.75" (273mm)

13.2 Ibs. (6kg)

-10°)

(49mm)

20.08" (510mm)

LE-M94

90° (+13°, -6°)
(500Hz to 16kHz)

40°(+16°,-7°)

(2kHz to 20kHz)
500Hz or more

(HFD-260-8/16 is
used.)
800Hz or more
(HFD-220-8/16 is
used.)

2"

(49mm)

HFD-260-8/16
HFD-220-8/16

Solid polyurethane

13.39" (340mm)

20.08" (510mm)

10.75"

(273mm)

11.0 Ibs. (5kg)

Model No.
Coverage Angle

Horizontal (-6dB)

Vertical (-6dB)

Crossover Frequency

Throat Diameter
Applicable Drivers

Construction
Dimensions

Mouth Height
Mouth Width
Length

Weight

*Specifications are subject to change without notice.

LE-M64 LE-M42

60° (+17°, -8°)

(800Hz to 20kHz) (800Hz to 20kHz)

40° (+16°, -7°)

(1.6kHz to 20kHz) (2kHz to 20kHz)
500Hz or more

(HFD-260-8/16 is (HFD-260-8/16 is
used.) used.)
800Hz or more
(HFD-220-8/16 is (HFD-220-8/16 is
used.) used.)

2

(49mm)

HFD-260-8/16 HFD-260-8/16
HFD-220-8/16 HFD-220-8/16

Solid polyurethane Solid polyurethane

16.54 (420mm) 16.54 (420mm)

20.08" (510mm)

13.98 (355mm) 28.03 (712mm)

13.2 Ibs. (6kg) 19.8 Ibs. (9kg)

40°

(+12°, -2°)

(+15°, -7°)

20°

500Hz or more

800Hz or more

2 (49mm)

24.80" (630mm)

EQUALIZATION

When using the LE Series constant directivity horn in combination with
the HFD-260-8/16 and HFD-220-8/16 drivers and the TOA SAORI

integrated sound processor, set the long delay type horn equalizer
(IS-110DL4, IS-110DL2) built into the digital channel divider module of
the SAORI as shown in the table below.

LE-M124 LE-M94 LE-M64 LE-M42
HFD-260-8/16 TYPE 3
HFD-220-8/16 TYPE 8 TYPE 8 TYPE 8 TYPE 9

TYPE 2 TYPE 2 TYPE 5

ARCHITECTS AND ENGINEERS

SPECIFICATIONS

The constant directivity horn shall be a TOA LE Series LE-M124,

LE-M94, LE-M64, LE-M42 or equivalent. Construction shall be of solid

polyurethane and throat diameter shall be 2 in. (49mm). Dimensions
(mouth height, mouth width and speaker length) and weight shall be:
LE-M124: 13.39 x 20.08 x 10.75 in. (340 x 510 x 273mm)at 13.2 Ibs.
(6kg); LE-M94: 13.39 x 20.08 x 10.75 in. (340 x 510 x 273mm) at 11.0
Ibs. (5kg); LE-M64: 16.54 x 20.08 x 13.98 in. (420 x 510 x 355mm) at

13.2 Ibs. (6kg); and LE-M42: 16.54 x 24.80 x 28.03 in. (420 x 630 x
712mm) at 19.8 Ibs. (9kg). Applicable drivers shall be the TOA
HFD-260-8/16 and HFD-220-8/16.
point of 500Hz and above when used as part of an HFD-260 system, or
800Hz and higher with the HFD-220 system. Frequency response shall
be uniform over the full frequency range from 800Hz to 16kHz at any
point (2kHz to 20kHz vertically) within the rated coverage angle.
The horns shall have a horizontal by vertical controlled coverage angle
at -6dB of: LE-M124: 120 x 40 degrees; LE-M94: 90 x 40 degrees;
LE-M64: 60 x 40 degrees, and LE-M42: 40 x 20 degrees.

Each horn shall have a crossover

TOA Corporation

Printed in Japan 833-64-817-40