Atlas Sound SM42T-WH, SM42T-B User manual

Owner’s Manual Surface Mount Loudspeakers

Atlas Sound Strategy Series®

Surface Mount Loudspeakers

SM42T-B SM42T-W

SM52T-B SM52T-W

SM82T-B SM82T-W

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

– 1 – AtlasSound.com

Specifications are subject to change without notice.

Owner’s ManualSurface Mount Loudspeakers

Thank you for choosing Atlas Sound Strategy Series® Surface Mount Loudspeakers

Atlas Sound manufactures the largest selection of commercial and professional sound products in the industry.

For information on our other products, go to www.AtlasSound.com or call 800.876.3333.

General Description

All Atlas Sound Strategy Series speaker systems are designed to provide high fidelity, long life and installation convenience for com-

mercial and residential applications. Because of their weather-resistant properties they are perfect for use indoors or out. The Atlas

Sound Strategy Series surface mount speakers are available in 4", 51⁄4", and 8" woofer sizes for 70.7V / 100V / 8Ω systems, finished in

black or white.

Features

• Includes internal, high efficiency 70.7V / 100V transformer (may be bypassed for 8Ω operation)

• Barrier strip input with weather resistant cover

• Bracket included for wall mounting

• Also compatible with optional mounting systems from Atlas Sound and others:

• SM82T - Omnimount™ 30.0 series

• Model 30.0WB is recommended for wall mounting

• Other mounting systems must match 41⁄2" (108mm) x 2" (51mm) , 1⁄4"-20 insert spacing on bottom of speaker.

• Mounting system must be rated to support at least 20 lbs (9Kg)

• SM42T, SM52T - Atlas Sound SMBALLMOUNT (indoor use only) or Omnimount™ 10.0 series

• Other mounting systems (single shaft or dual hole mount) may be used to match 1⁄4"-20 insert(s) on rear of speaker. Dual hole
mounting systems must match 23⁄8" (60mm) OC, 1⁄4"-20 insert spacing.

• Mounting system must be rated to support at least 10 lbs (4.5Kg)

Placement

Outdoor Use

The materials used in the construction of the Strategy Series surface mount speaker systems are weather resistant. The hardware is

brass, the grille is powder-coated aluminum, and the bracket is zinc plated, powder coated steel. The enclosure itself is shatter resis-

tant. Adhering to these mounting guidelines will further extend the life of the product when installed outdoors:

• Whenever possible, mount the speaker under an eave or other protective overhang.

• Always aim the speaker at a slight downward angle to prevent water from accumulating on the speaker cone.

• Do not place the speaker in a location where water, snow or ice will accumulate on the speaker for extended periods of time.

Indoor Use

The Atlas Sound Strategy Series surface mount speaker system works very well when it is wall-mounted in indoor applications. When

you place the speaker on a wall, you take advantage of the natural boundary effect that occurs when a speaker system is placed

against one or more surfaces. This boundary effect will provide increased overall output. When you mount the speaker against one

surface (on a wall), output will increase by 3dB. When you mount the speaker against two surfaces (on the wall near the ceiling or

corner), you increase the output by 6dB. When you mount the speaker against three surfaces (in a corner near the ceiling), output will

increase by 9dB.

Shelf Mounting

The bottom surface of the SM42T, SM52T, and SM82T are a flat 90° to the speaker baffle to maintain level surface when placing on

shelves. All models can also be horizontally installed in any placement option.

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

AtlasSound.com – 2 –

Specifications are subject to change without notice.

Owner’s Manual Surface Mount Loudspeakers

Down Firing

The SM Series speaker systems also work well in a down firing configuration for spaces utilizing open beam ceilings such as offices,

restaurants and warehouses. When determining speaker spacing in down-firing installations, refer to the following chart:

Ceiling

Height

8'

9'

10'

11'

12'

13'

14'

15'

16'

17'

18'

19'

20'

25'

30'

Speaker Spacing

MAX SPL @ Highest Tap

(with the Listener @ 3.5')

SM42T SM52T SM82T SM42T SM52T SM82T

6' 6' – 97dB 102dB –

8' 8' – 96dB 101dB –

9' 9' 6' 94dB 99dB 104dB

10' 10' 6.5' 93dB 98dB 103dB

12' 12' 7.5' 92dB 97dB 102dB

13.5' 13.5' 8.5' 91dB 96dB 101dB

15' 15' 9.5' 90dB 95dB 100dB

16' 16' 10' 89dB 94dB 99dB

– 17.5' 11' – 93dB 98dB

– 19' 12' – 93dB 98dB

– 20.5' 13' – 92dB 97dB

– 22' 14' – 92dB 97dB

– 23' 15' – 91dB 96dB

– – 19' – – 94dB

– – 24' – – 92dB

SM42T = 90° Nominal Coverage at 2kHz

SM52T = 90° Nominal Coverage at 2kHz

SM82T = 65° Nominal Coverage at 2kHz

Note: Using the above spacing suggestions will maintain good, even high frequency coverage, which translates into excellent intelligi-

bility for voice reproduction and high fidelity music reproduction. To find out more about the formulas used to determine ceiling

speaker spacing, check out the book Sound System Engineering by Don and Carolyn Davis. To find out more about the limits of

wide dispersion loudspeakers, download the Atlas Sound white paper on the subject at

http://www.atlassound.com/Support/WhitePapers.aspx .

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

– 3 – AtlasSound.com

Specifications are subject to change without notice.

Owner’s ManualSurface Mount Loudspeakers

Installation

Fixed Install

The SM Series speaker systems include a versatile yet simple U-bracket designed to provide easy vertical or horizontal installation on

just about any surface. The speaker may be installed using screws or bolts placed through the "Keyhole" shaped holes in the mounting

bracket. The center 5⁄8"-27 hole allows wire to exit through the bracket when wall mounting, for a neat installation. The unused inserts

on the bottom and top of the SM82T are M5 and on the rear of the SM52T are 1⁄4"-20. These openings can be used with forged eyebolt

and an approved safety cable (wire rope sling) where redundant support is required for seismic considerations.

These parts are available through multiple sources.

Eyebolt, Lifting With Shoulder, Steel, Plain Finish, 1⁄4-20 In Thread Size, 1" Thread Length, 1" Shank Length, 17⁄32" Shoulder Diameter,

5

⁄32" Shoulder Length, 3⁄4" Eye Inside Diameter, 11⁄4" Eye Outside Diameter, 23⁄8" Overall Length, 500 Lb Working Load Limit

Galvanized Steel Cable Spool, 1⁄8"

Sleeve N Thimble™ Kit for 1⁄8" Cable

Swage It Tool for 1⁄16", 3⁄32", and 1⁄8" - Cable Size

The mounting knobs included with the Surface Mount Speaker products may be easily interchanged with standard, 1⁄4"-20 vandal

proof hardware.

TORX Drive Button Head 1⁄4" Machine Screw, Tamperproof, 1⁄2" Length

One-Way Round Head 1⁄4" Machine Screw, Tamperproof, 1⁄2" Length

Spanner Flat Head 1⁄4" Machine Screw,Tamperproof, 1⁄2" Length

Overhead Suspension

CAUTION: Suspending any object is potentially dangerous and should be attempted only by individuals who have a thorough knowl-

edge of the techniques and regulations of rigging objects overhead using ONLY hardware approved for this type of installation. Atlas

Sound strongly recommends that Strategy Series Surface Mount enclosures only be suspended overhead when taking into account all

current national, federal, state, and local regulations. It is the responsibility of the installer to insure that the speaker is installed accord-

ing to those regulations. If the Strategy Series Surface Mount speaker is suspended, Atlas Sound strongly recommends that the sys-

tem be inspected at least once a year. If any sign of weakness or damage is detected, remedial action should be taken immediately.

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

AtlasSound.com – 4 –

Specifications are subject to change without notice.