Toa SF-30 Manuel utilisateur

PROFESSIONAL SOUND SYSTEM

Speaker System

Model SF-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 pat-

tern 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 fre-

quency level controls are provided on the side of the en-

closure.

T-nuts for mounting brackets for ceiling suspension are

provided on the rear slant and on both sides of the enclo-

sure.

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 watts 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 full-

range operation.

10. ¼" phone jacks can be converted into XLR connec-

tors.

11. T-nuts for ceiling suspension provided on rear slant

and both sides of enclosure.

12. Removable punched metal front grill.

Instruction Manual

Enclosure:

Vented (bass reflex) type

Speakers:

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

wound copper ribbon voice coil,

Aluminum diecast construction

Mid Frequency; CD horn plus compression driver,

duralumin diaphragm

High Frequency; Horn tweeter, duralumin diaphragm

Power Handling Capacity

Continuous Pink Noise:

120 watts RMS of band-limited pink noise

(50 Hz to 20

kHz)

Continuous Program:

360 watts

Nominal Impedance:

8 ohms

Sensitivity:

100dB (1W/1m)

Frequency Responce:

70 Hz to 20 kHz

Crossover Frequencies:

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 full-

range

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

(61.7Ibs)

Standard Accessories:

8 rubber pieces for T-nut holes

Input Panel 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.

Separate level controls are provided for mid and

high frequencies.

Make the level setting according to the environmen-

tal conditions, although almost flat frequency re-

sponse is obtainable as long as the level controls

remain within the "NORMAL" ranges.

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 adjust-

able 360 degrees horizontal, and ±10 degrees vertical from the angle in the

figure. Refer to the instruction manual of the HY-30 for 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.

Directivity Frequency Response (1W, 1m) Polar Response (1W, 4m)

Toa Electric Co, Ltd.

KOBE,JAPAN

Printed in Japan

133-01-256-30

Hor.

Ver.

Specifications

Ceiling Suspension

Input Panel

Level Controls

Characteristic Diagrams

(1/3

Octave

Noise)

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