Key Features

Description

Applications

© 2012 SoundTube Entertainment. All rights reserved. TS-RS31-EZ-T REV 06.07.12

Specifications: RS31-EZ-T

System Type

Impedance (nominal) 1

Sensitivity dB @ 2.83 V/1 mSensitivity dB @ 1 W/1 m 2

Frequency Response (- 3 dB) 3

Frequency Response (-10 dB) 3

Max. Program Power 4

Max. Continuous Power RMS 5

Max. Power SPL @ 1 m 6

Coverage Angle (-6 dB @ 2 kHz)Coverage Angle (-6 dB @ 10 kHz)Coverage Angle (averaged from 2 to 10 kHz)Directivity Factor (Q) Directivity Index (DI) dB Tap SelectorTransducer - Full-Range Driver Enclosure MaterialGrilleInputsColorsHeight Height (with stabalizing arm)DiameterWeight Shipping WeightPackaging Included Accessories

Optional Accessories Regulatory - ULRegulatory - CERoHS

3 inch full-range, pendant mount, 8 ohm with 20-watt trans-former for 25/70.7/100-volt or transformer bypass applications8 ohm85.0 dB85.0 dB170 Hz - 14 kHz120 Hz - 22 kHz40 W20 W98.0 dB70°45°85°

4.9 (averaged 100Hz - 10kHz), 7.1 (2kHz)5.1 (averaged 100Hz - 10kHz), 8.5 (2kHz)Selectable terminal input strip76.1 mm (3.0 in.) Polypropylene driver with butyl rubber surroundInjection molded ABSCorrosion-resistant, powder-coated aluminumTerminal stripBlack or white80.1 mm (3.15 in.)139.7 mm (5.5 in.) 110.5 mm (4.4 in.) 1.11 kg (2.45 lbs.) 1.34 kg (2.95 lbs.) One per boxCeiling mount, cover plate, and 10 ft speaker signal/hanging cable N/AUL 1480 (UEAY) approvedApprovedApproved

Transformer TapsImpedance listed per IEC 60268-5 with a mini-mum less than 80% the nominal impedance

1 W 1 m sensitivity determined using nominal impedance

Frequency response measured in half or full space as dictated by speaker mounting configuration

Max program power is 3 dB above max continuous power

Continuous power rating, EIA-426-B testMax output based on max continuous power

1

2

3

4

5

6

70.7 V Output 100 V Output 25 V Output

20 W 98.0 dB

10 W 95.0 dB

5 W 92.0 dB

3 W 90.0 dB

20 W 98.0 dB 10 W 95.0 dB 5 W 92.0 dB

3 W 90.0 dB 1.5 W 87.0 dB 0.8 W 84.0 dB 0.4 W 81.0 dB

RS31-EZ-T On-Ceiling Speaker Technical Information for System Engineers

25/70.7/100-volt or transformer bypass applications.

with optional field change for 8 ohm bypass.

3.15

SoundTube Entertainment13720 W 109th St. Lenexa, KS 66215Phone 913.663.5600 Fax 913.663.3200 Toll Free 800.647.TUBEwww.soundtube.com

All SoundTube products come

with a 5-year limited warranty.

Patented SoundTube Technologies

Technical Data and Specification ToolsTechnical Data

Acquisition and Verification

Architectural Specifications

RS31-EZ-T On-Ceiling Speaker Technical Information for System Engineers

Performance specifications for a typical production unit shall be as follows: Useable frequency response shall extend from 120 Hz - 22 kHz (-10 dB). Measured sensitivity (2.83 volt input, 1 meter) shall be at least 85.0 dB. The speaker shall have a nominal impedance of 8 ohms, with a 20-watt transformer for distributed systems. The transformer shall have a selectable terminal input strip for 25-, 70.7-, and 100-volt applications with an optional 8 ohm bypass. Rated power capacity shall be at least 20 watts continuous (RMS) and conform to EIA-426-B. Maximum continuous power output at 1 meter shall be 98 dB.

both low- and high-impedance applications.

80.1 mm (3.15)

RS31-EZ-T On-Ceiling Speaker Technical Information for System Engineers

Mechanical Drawings

80.1 mm (3.15 in.)

110.5 mm (4.35 in.)

Phase/Impedance ResponseFrequency Response

Vertical Beamwidth (-6 dB) Directivity Index (DI)

100

1000

1000

020 50 200

500

2000

5000

2000

0

Hertz

0

10

20

30

40

50

60

70

80

90

100

110

dBSP

L

Frequency Response

100

1000

1000

020 50 200

500

2000

5000

2000

0

Hertz

0

8

16

24

32

40

48

56

64

Ohm

s

-180

-135

-90

-45

0

45

90

135

180

Phas

e(D

egre

es)

Impedance/PhaseImpedancePhase

100

1000

1000

020 50 200

500

2000

5000

2000

0

Hertz

0

30

60

90

120

150

180

Degr

ees

Vertical Beamwidth (- 6dB)

-3dB-6dB-9dB

100

1000

1000

020 50 200

500

2000

5000

2000

0

Hertz

-10

-5

0

5

10

15

20

dB

Directivity Index (DI)

SoundTube Entertainment manufactures a complete line of speakers for:

All SoundTube products are designed and engineered in the USA.

Polar Plots Horizontal

10,000 Hz8,000 Hz

500 Hz250 Hz125 Hz

Technical data, EASE™ plots, SoundTubeSPEC™ software and product downloads available at www.soundtube.com

RS31-EZ-T On-Ceiling Speaker Technical Information for System Engineers

4,000 Hz2,000 Hz1,000 Hz