TOA SR-S4LWP User Manual

TYPE S SERIES LINE ARRAY SPEAKER SYSTEM

SR-S4S/SR-S4SWPSR-S4L/SR-S4LWP

Photo: SR-S4LWP Photo: SR-S4S

DESCRIPTION

TOA Type S Series Line Array Speakers provide optimal
coverage and dispersion characteristics. Available in slim,
tower-configured enclosures, these speakers also feature a
wide range of mounting accessories to enable permanent
installation in various venues.

The SR-S4L and SR-S4S speakers are 2-way line array
speakers that are vertically configured. Each configuration
contains 32 speaker elements composed of eight 10cm
woofers and 24 high frequency drivers which are positioned
close together to create a continuous linear sound source. The
speaker output therefore maintains a uniform sound pressure
level that resists attenuation with distance. The SR-S4L
speaker features a linear design tailored for distance sound
transmission applications and the SR-S4S features a gently
curved line designed for a 10° vertical coverage area which
offers ideal sound coverage over a shorter distance.

Line Array Speaker Standard Speaker

FEATURES

●

Versatile configuration possibilities

Flexible speaker configurations can be combined to achieve
a precision sound array with optimal response for both
sound coverage and dispersion over the targeted listening
area, near and distant. The result is minimal sound level
differences whether the listener is close or distant from
speakers.

Suits difficult environments

●

Type S Series speaker enclosures are designed to minimize
floor- and ceiling reflections to maximize sound clarity in
problematic environments that are reverberant.

High resistance to feedback

●

Because output levels do not become excessively high right
close to the speakers, they are able to resist feedback to a
high degree. Gain levels for a system are therefore easier to
set.

Single or biamp operation

●

Type S Series speakers can be driven with a single amplifer
or biamped as required (simple internal wiring change). For
improved performance an external DSP can be used to set
crossover frequencies and slopes.

Multiple speaker connectivity

●

Using optional TOA MT-SO601 matching transformers
allows use in high impedance applications.

Heavy-duty use

●

Type S Series speakers are designed to satisfy the rigorous
demands of permanent installations that are used
extensively.

SR-S4L/SR-S4LWP

CHARACTERISTIC DIAGRAMS

SR-S4L Frequency Response

[dB]

110

100

90

80

70

60

20 50 100 500 1k 5k 10k 20k

SR-S4LWP Frequency Response

[dB]

110

Frequency — SPL

(when using DP-0206 option)

100

90

80

70

60

20 50 100 500 1k 5k 10k 20k

Polar Response

horizontal

60°

90°

120°

60°

90°

120°

60°

90°

120°

60°

90°

120°

0°

30°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

150°

180°

0°

30°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

150°

180°

0°

30°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

150°

180°

0°

30°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

150°

180°

Frequency — SPL

Measurement distance (simulation): 20m

330°

300°

270°

240°

210°

250Hz
200Hz
160Hz

330°

300°

270°

240°

210°

1000Hz
800Hz
630Hz

330°

300°

270°

240°

210°

4000Hz
3150Hz
2500Hz

330°

300°

270°

240°

210°

16000Hzl
12500Hz
10000Hz

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

Horizontal

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

Ver tical

Beamwidth vs. Frequency

(when using DP-0206 option)(when using DP-0206 option)

[deg]

200

100

50

[Hz]

10

5

1

[Hz]

330°

300°

270°

240°

210°

500Hz
400Hz
315Hz

330°

300°

270°

240°

210°

2000Hz
1600Hz
1250Hz

330°

300°

270°

240°

210°

8000Hz
6300Hz
5000Hz

20 50 100 500 1k 5k 10k 20k

vertical

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

30°

60°

90°

120°

150°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

Frequency — Beamwidth

330°

300°

270°

90°

240°

210°

250Hz
200Hz
160Hz

330°

300°

270°

90°

240°

210°

1000Hz
800Hz
630Hz

330°

300°

270°

90°

240°

210°

4000Hz
3150Hz
2500Hz

330°

300°

270°

240°

210°

16000Hz
12500Hz
10000Hz

30°

60°

120°

150°

30°

60°

120°

150°

30°

60°

120°

150°

[Hz]

Hor.
Ver.

0°

330°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

0°

0

–10

–20

–30

–40

–40

–30

–20

–10

0

180°

300°

270°

240°

210°

500Hz
400Hz
315Hz

330°

300°

270°

240°

210°

2000Hz
1600Hz
1250Hz

330°

300°

270°

240°

210°

8000Hz
6300Hz
5000Hz