Toa SF-30 Instruction Manual

PROFESSIONAL SOUND SYSTEM

Instruction Manual

Speaker System

Model S F-30

GENERAL DESCRIPTION

The TOA SF-30 is a 3-way loudspeaker system capable of
being suspended from the ceiling. The system consists of
bass-reflex enclosure housing a hevy-duty 12-inch woofer,
a constant directivity horn coupled with high-efficiency
compression driver, and an exponential horn tweeter. The
constant directivity horn ensures a uniform dispersion pat­tern of 90 degrees horizontal and 40 degress vertical.
A high-tech crossover network of –18dB/octave slope is
used for crossover between the woofer and the driver.
This combination results in an extended smooth frequency
response and wide coverage area. The system will handle
120 watts RMS of continuous pink noise and 360 watts of

continuous program material.
The rear panel provides ¼" phone jacks and screw-type
terminals for full-range operation. The phone jacks can be
converted into XLR connectors by removing mounting
panel and installing XLR connector. The mid and high fre­quency level controls are provided on the side of the en­closure.
T-nuts for mounting brackets for ceiling suspension are
provided on the rear slant and on both sides of the enclo­sure.
Enclosure is finished in grey polyester. The black punched
metal front grill is removable.

FEATURES

1. Three-way vented system.

2. Extended smooth frequency response.

3. High power capacity of 120 watts RMS continuous
pink noise and 360 wat ts continuous program material.

4. 12" (30 cm) heavy-duty woofer.

5. Constant directivity horn coupled with high-efficiency
compression driver gives coverage of 90 degrees
horizontal by 40 degrees vertical.

6. High efficiency converts amplifier power into more
sound volume.

7. Exponential horn tweeter.

8. Level controls for Mid and High frequencies located on
side of enclosure.

9. ¼" phone jacks and screw type input terminals for full­range operation.

10. ¼ " phone jacks can be converted into XLR connec­tors.

11. T-nuts for ceiling suspension provided on rear slant
and both sides of enclosure.

12. Removable punched metal fr ont grill.

Specifications

Enclosure:

Vented (bass reflex) type

Speakers:

Low Frequency; 12" woofer, 2.83" (72 mm) edge-

Mid Frequency; CD horn plus compression driver,
High Frequency; Horn tweeter, duralumin diaphragm

Power Handling Capacity

Continuous Pink Noise:

120 watts RMS of band-limited pink noise

(50 Hz to 20

Continuous Program:

360 w atts

Nominal Impedance:

8 ohms

Sensitivity:

100dB (1W/1m)

Input Panel

Input Panel

wound copper ribbon voice coil,
Aluminum diecast construction

duralumin diaphragm

kHz)

Frequency Responce:

70 Hz to 20 kHz

Crossover Frequencies:

1

kHz,

8 kHz

Mid and High Frequencies Level Controls:

0 to –10dB (with an "OFF" position)

Input Terminals:

Two ¼" phone jacks and screw type, both for full­range

Finish (Enclosure):

Polyester in gray color

Dimensions:

636(H) x 388(W) x 347(D) mm

25.0(H) x 15.3(W) x 13.7(D) inches

Weight:

28 kg

Standard Accessories:

(61.7 Ibs)

8 rubber pieces for T-nut holes

Level Controls

Level Controls

The screw type terminals are connected in parallel
with the ¼" phone jacks. Two ¼" phone jacks can

be converted into XLR connectors by removing
mounting panel and installing XLR connector.

Ceiling Suspension

Ceiling Suspension

T-nuts for ceiling suspension are provided on rear slant and both sides of
enclosure, permitting the SF-30 to be readily suspended from the ceiling
when used with the optional brackets, HY-30 and HY-31. (Bolts to fix the
brackets to the speaker are supplied with the HY-30.) The angle is adjust­able 360 degrees horizontal, and ±10 degrees vertical from the angle in the
figure. Refer to the instruction manual of the HY-30 fo r details.

CAUTION: When suspending the SF-30 from the ceiling, be sure to use

both the HY-30 and HY-31 ceiling mounting brackets for safety
purposes.

When using the SF-30 without suspending from the ceiling, insert attached
rubber pieces into holes of T-nuts.

Separate level controls are provided for mid and
high frequencies.
Make the level setting according to the environmen­tal conditions, although almost flat frequency re­sponse is obtainable as long as the level controls
remain within the "NORMAL" ranges.

Characteristic Diagrams (1/3 Octave

Directivity Frequency Response (1W, 1m)

Polar Response (1W, 4m)

Hor.

Pink

Noise)

Ver.

Toa Electric Co, Ltd.

KOBE, JAPAN

Printed in Japan

133-01-256-30