S D 4 U S E R M A N U A L

After 25 years of unparalleled success in the omnidirectional ceiling-mounted speaker marketplace,

we have taken that experience and designed the ultimate commercial in-ceiling speaker

technology. The SD4 takes ceiling speaker performance to a new level. For 25 years, audio

professionals worldwide have chosen the SuperDispersion® (SD) Ceiling Tile Speakers for their

powerful sound, high performance, and distinctive styling. The SD4 is an innovative speaker

concept that meets the demanding needs of audio and systems contractors worldwide. SD

speakers’ pyramid design fits into standard 2’x2’ or 2’x4’ in-ceiling tile grids, providing an amazing

360 degrees of hemispheric sound. SD speakers are quick and economical to install and are

competitively priced, making them an excellent value to contractors! SD4 ceiling speaker array

systems o�er performance and value and are ideal for classrooms, schools, universities, conference

rooms, training rooms, teleconferencing, churches, retail spaces, restaurants, and many more.

SD4 SUPERDISPERSION® CEILING SPEAKER

FEATURES• 4 - 6.5” High compliance aluminum woofers with

ported bass response and high frequency dome tweeters

• Uniquely designed fire retardant paintable ABS housing may be painted to match any décor

• Metal backbox that is acoustically engineered and sealed for maximum sonic performance

• Powerful – 160 watts at 8 ohms, 64 watts at 70 volts

• SuperDispersion® 360 x 180 omni directional coverage

• Engineered for voice, paging and music applications

• Infinite-ba�e in-ceiling speaker drops into standard 2x2 ceiling tile openings

• Impedance: 8 ohms nominal with built-in 70 volts (4, 8, 16, 32, 64 watt taps), easily adjustable by rotating switch

• Safety cable kit included

TECH SPECSSystem Type

Power Handling

Dispersion

Omni Directional Cei l ing Speaker

160 watts

Sensit iv ity

Driver Complement

Woofers

70 v Taps

Impedance

Shipping Weight

180 x 360 degrees Aluminum

92dB

4 ful l -range 6.5” drivers

4, 8, 16, 32, 64 w

8 Ω / 70v

32 lbs (14.5 kg)

Frequency Response

35 Hz - 20 kHz

Dimensions (H x W x D)

23.75” x 23.75” x 5.75”

Shipping Dimensions (H x W x D)

28” x 28” x 9.25”

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• Remove the speaker from the box and packaging.

• Remove the ceiling tile from the grid where you wish to install the speaker. NOTE: If you are installing the speaker into a

2’ x 4’ ceiling tile space, you will need to cut the tile to fit the speaker and use a common ceiling t-rail.

• Pull all needed wires.

• Set the 70 volt/8 ohm tap selector*: Use the transformer switch to match the input voltage specified by the system

designer. To do this you may need to slide the switch from 70 volt (factory default setting) to 25 volt or, in some cases, to

bypass directly. This switch is located next to the power level selector switch. Both 70 volt and 25 volt settings are

available, as well as a bypass to the 8 ohm driver**.

• Adjust the transformer “tap” setting according to the level specified by the system designer. The ESSENTIALS and PRIVACY

speakers are set at a factory default 2 watt tap setting prior to shipping. The APPLAUSE speakers are set at factory default

7.5 watt tap setting prior to shipping***.

*Use in conjunction with amplifier output/rating requirements.

**Do not feed 70 volt or 25 volt signal into the speakers when the 8 ohm bypass mode has been selected. This will permanently

damage the speaker.

***Do not exceed the maximum power rating of the speaker. The maximum power rating for each speaker is as follows:

ESSENTIALS = 8 watts, PRIVACY = 4 watts, APPLAUSE = 30 watts

INSTALLATION GUIDEPREPARATION

• Connect all wires.

TERMINATION

• Connect the safety cables. See warning section on page 4.

• Angle the SD4 to fit into the ceiling and place the speaker driver side down into the tile.

INSTALLATION

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SPEAKERS MUST BE INSTALLED BY A QUALIFIED TECHNICIAN AND APPROVED BY THE BUILDING’S ENGINEER OR ARCHITECT.

30 FT.

30 F

T.

SYSTEM EXAMPLES - 70V/8Ω :

70v High Impedance Sound 8Ω Low Impedance Sound

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SOURCE

MIXER

AMPLIFIER

MIC

SPEAKERS

SOURCE

MIC

AMPLIFIER

SPEAKERS

WARNING: SPEAKER UNITS MUST BE ATTACHED TO THE CEILING

BY SAFTY CABLE!

Pro Acoustics is not responsible for the structural integrity of the

installation. Please make sure a qualified technician installs this

product and the building’s engineer or architect has approved the

equipment and installation.

WARNING

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• If there is no sound output: Check to make sure all of the

speaker wires are firmly and correctly connected to the

appropriate terminals.

• If there is little or low sound output:

o If using a 70 volt amplifier, adjust the tap setting to a

higher output (within the limitations of the amplifier).

o If using an 8 ohm amplifier try increasing the master

volume.

• If the sound is distorted/fuzzy: Turn the amplifier master

output AND/OR the input gain setting down slowly until the

sound clears up.

TROUBLESHOOTING

***A SAFTEY CABLE MUST BE USE TO INSTALL THIS PRODUCT. SEE SAFETY CABLE INSTUCTIONS. THE PRODUCT

MUST BE INSTALLED BY A QUALIFIED TECHNICIAN.***

1. DO NOT use this or other electrical equipment near water or other liquids.

2. CLEAN ONLY with dry cloth.

3. DO NOT block any ventilation openings. Install in accordance with all safety standards and regulations.

4. DO NOT install near any heat sources such as stoves, radiators, heat registers, amplifiers or any other

apparatus producing heat.

5. USE attachments and accessories as indicated by the manufacturer.

6. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been

damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have

fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or

has been dropped.

*No user-serviceable parts inside. Refer all servicing to qualified service personnel.

*WARNING: To reduce the risk of fire or electrical shock, do not expose this apparatus to rain, other liquids or

moisture.

*WARNING: To prevent injury, this apparatus must be securely attached to the wall/ceiling in accordance with

the installation instructions. No naked flame sources – such as candles – should be placed close to the product.

*CAUTION: Changes or modifications not expressly approved by the manufacturer could void the user’s

IMPORTANT SAFETY INSTRUCTIONS

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Pro Acoustics U.S.A. Limited Warranty

PRO ACOUSTICS U.S.A., LLP. ("PRO ACOUSTICS U.S.A.") warrants this product to the original purchaser to be free

from defects in materials and workmanship (subject to the terms set forth below), for a period of (2) years from

the date of purchase. PRO ACOUSTICS U.S.A. will repair or replace (at PRO ACOUSTICS U.S.A.'s option) this

product or any defective parts (excluding electronics and amplifiers) in this product. For products that have

electronics or amplifiers, the warranty on those parts is for a period of two (2) years from the date of purchase.

Your authorized PRO ACOUSTICS U.S.A. dealer will inspect the product and, if your dealer is not equipped to

perform the repair of your PRO ACOUSTICS U.S.A. product, they will replace your product or return it to PRO

ACOUSTICS U.S.A. for repair, at their discretion. Proof of purchase in the form of a bill of sale or receipted

invoice, which is evidence that this product is within the warranty period, must be presented to obtain warranty

service.

This warranty is invalid if the factory applied serial number has been altered or removed from this product. This

warranty is invalid if this product was not purchased from a PRO ACOUSTICS U.S.A. authorized dealer.

Cosmetic damage or damage due to accident, acts of God, misuse, abuse, negligence, commercial use, or

modification of, or to any part of, the product are not covered in this warranty. This warranty does not cover

damage due to improper operation, maintenance or installation, or attempted repair by anyone other than PRO

ACOUSTICS U.S.A. or a PRO ACOUSTICS U.S.A. dealer which is authorized to do PRO ACOUSTICS U.S.A.

warranty work. Any unauthorized repairs will void this warranty.

This warranty does not cover products sold as is.

REPAIRS OR REPLACEMENTS AS PROVIDED UNDER THIS WARRANTY ARE THE EXCLUSIVE REMEDY OF THE

CONSUMER/PURCHASER. PRO ACOUSTICS U.S.A. SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR

CONSEQUENTIAL DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY ON THIS PRODUCT.

EXCEPT TO THE EXTENT PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER

EXPRESS AND IMPLIED WARRANTIES WHATSOEVER, INCLUDING BUT NOT LIMITED TO, THE WARRANTY OF

MERCHANTABILITY AND FITNESS FOR A PRACTICAL PURPOSE.

This warranty gives you specific legal rights. You may have other rights which vary from state to state.

WARRANTY

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