ALA15T - Loudspeaker ATLAS - Free user manual and instructions

Product Type	Speaker
Brand	Atlas
Model	ALA15T
Power Rating (Transformer)	60W at 70.7V
Transformer Taps	7.5W, 15W, 30W, 60W
Low Impedance Operation	8Ω or 6Ω direct coupled
Low Impedance Connector	NL4 Speakon
Transformer Connection	Barrier terminal strip
Mounting System	Wall bracket with adjustable tilt angle
Mounting Hardware Included	Wall bracket, sliding mount block, bolts
Installation Requirements	Professional installer required; follow local building codes for overhead installation
Safety Warning	Risk of hearing damage at high sound pressure levels; assure amplifier is off before connecting
Compliance	Installation must comply with all applicable safety codes and standards
Series	ALA Series
Application	Commercial audio systems, indoor use
Documentation	User manual included
Tech Support	Atlas Sound Tech Support: 800-876-3333

Frequently Asked Questions - ALA15T ATLAS

What is the power handling of the Atlas ALA15T speaker?

The speaker has a built-in 60W 70.7V transformer with taps at 7.5, 15, 30, and 60W. It can also be used in low impedance mode (8Ω or 6Ω) by removing the jumper from the terminal block.

Can the ALA15T be used with a standard amplifier?

Yes, for low impedance operation, remove the jumper and connect to the NL4 Speakon or barrier terminal. For 70.7V systems, use the transformer taps.

How do I mount the ALA15T speaker?

Attach the wall bracket to the wall using appropriate anchors (not included). Then attach the speaker bracket to the sliding mount block on the speaker. Finally, bolt the speaker bracket to the wall bracket. Adjust the tilt angle using the different bracket lengths (short, medium, long) and the angle table in the manual.

What safety precautions should I take during installation?

Always turn off the amplifier before making connections. Only qualified installers should perform overhead mounting. Follow local building codes and use proper wall anchors. The speaker can produce high sound pressure levels that may cause hearing damage.

What connectors are available on the ALA15T?

It has a barrier terminal strip for both transformer and low impedance connections, and an NL4 Speakon connector for low impedance only. When using Speakon, remove the jumper from the barrier terminal.

What is the impedance of the speaker in low impedance mode?

The speaker can be configured for 8Ω or 6Ω operation. Refer to the manual for specific settings and jumper positioning.

Does the speaker include mounting hardware?

It includes the wall bracket, sliding mount block, and bolts for attaching the speaker to the bracket. Wall anchors and wiring are not included.

How do I adjust the tilt angle of the speaker?

Select the appropriate speaker bracket length (short, medium, or long) and position the upper wall bracket at the correct center-to-center distance from the lower bracket. Refer to the angle table in the manual for precise adjustment.

Can the ALA15T be used outdoors?

The manual does not specify outdoor use. It is likely intended for indoor commercial applications. Contact Atlas Sound Tech Support for outdoor suitability.

What is the warranty on the Atlas ALA15T?

Warranty information is not provided in the manual. Contact Atlas Sound Tech Support at 800-876-3333 for warranty details.

USER MANUAL ALA15T ATLAS

Installation Instructions

Safety Instructions

Please read carefully before installing or operating.

• Read all instructions carefully
• Heed all warnings
  • Assure that the speaker is securely mounted
  • Always assure amplifier power is off before making any connections
• Keep instructions for future reference

- Should any questions arise after reading this document, please call Atlas Sound Tech Support at 800-876-3333

Hearing Damage

CAUTION: All professional loudspeaker systems are capable of generating very high sound pressure levels. Use care with placement and operation to avoid exposure to excessive levels that can cause permanent hearing damage.

Suspension and Mounting

Installing speaker systems requires training and expertise. Improper speaker installation may result in injury, death, equipment damage, and legal liability. Installation must be carried out by fully qualified installers, in accordance with all required safety codes and standards at the place of installation.

Legal requirements for overhead installation vary by municipality, please consult the Building Inspector office before installing any product and thoroughly check any laws and bylaws prior to installation. Installers that lack the skills, training, and proper ancillary equipment to install a speaker system should not attempt to do so.

Installation

1. Run the wiring from the power amplifier to the location desired for mounting the ALA Series speaker.
2. Attach the wall bracket to the wall. Use a level to be certain that the wall bracket is straight. Secure the wall bracket to the wall. Be sure to use the appropriate wall anchors when attaching the bracket. Use all four screw holes for maximum integrity and safety.
   Note: Hardware for attaching the wall bracket to the wall is not included.

Technical line drawing of a mechanical bracket assembly with mounting holes (no text or symbols)

Fig. 1

1. Attach the upper wall bracket as required.

A. The location of the upper wall bracket will vary according to the angle that the speaker will be used.
B. If the speaker will be parallel to the wall, the upper wall bracket can be located 25" to 38" center to center. Two short speaker brackets, one on the top and one on the bottom will be used. Refer to figure 2a.
C. For an angled installation, please refer to the tables and figures below to determine the center to center distance for the wall brackets.
D. For higher angles of tilt, use the long speaker bracket. Refer to figure and table 2b.
E. For lower angles of tilt, use the medium speaker bracket. Refer to figure and table 2c.

Fig. 2c

ALA15T / ALA20T
ANGLE C-C IN
26.06° 19"
24.67° 20"
23.42° 21"
22.30° 22"
21.28° 23"
20.35° 24"
19.50° 25"
18.72° 26"
18.01° 27"
17.34° 28"
16.73° 29"
16.15° 30"
15.62° 31"
15.12° 32"
14.65° 33"
14.21° 34"
13.80° 35"
13.41° 36"
13.04° 37"
12.69° 38"
12.36° 39"
12.04° 40"
11.75° 41"
11.46° 42"
11.19° 43"
10.93°	44'
10.69°	45'
10.45°	46'
10.23°	47'
10.01°	48'

1. Attach the short speaker bracket to the lower sliding mount block.

A. Position the short speaker bracket over the lower sliding mount block as shown in Fig. 3.
B. Insert the 100mm M8 bolt through the short speaker bracket and the lower sliding mount block. Be sure to include the plain washers and one lock washer as shown.

Note: For angled installation, skip step 4C and proceed to step 4D.

Technical line drawing of two mechanical components with no visible text or symbols

Fig. 3 (Sliding Mount Block shown not attached to speaker for clarity)

C. If the speaker will be parallel to the wall, repeat steps 4A and 4B for the upper sliding mount block.
D. Position the medium or long speaker bracket over the upper sliding mount block as shown in Fig. 4a or Fig. 4b.
E. Insert the 100mm M8 bolt through the speaker bracket and the sliding mount block. Be sure to include the plain washers and one lock washer as shown.

Technical line drawings of mechanical brackets and mounting fixtures (no text or symbols)

Fig. 4a and 4b (Sliding Mount Block shown not attached to speaker for clarity)

1. Attach the speaker bracket to the wall bracket.

A. Insert the 20mm M8 bolt through the short speaker bracket and the lower wall bracket as shown in Fig. 5. Be sure to include the plain washers and one lock washer as shown.

Technical line drawing of a mechanical assembly with mounting flanges and a central connector (no text or symbols)

Fig. 5 (Sliding Mount Block shown not attached to speaker for clarity)

B. Insert the 20mm M8 bolt through the medium or long speaker bracket and the upper wall bracket as shown in Fig. 6a and 6b. Be sure to include the plain washers and one lock washer as shown.

C. Adjust horizontal position of the speaker and torque all bolts sufficiently to hold position.

Technical line drawing of three mechanical assembly components with mounting brackets and mounting holes (no text or symbols)

Fig. 6a and 6b (Sliding Mount Block shown not attached to speaker for clarity)

1. Establish electrical connection. All models include a built-in, high efficiency 60 Watt 70.7V transformer with 7.5, 15, 30, and 60 Watt taps as shown in Fig. 7.

Note: A removable jumper and additional pole on the terminal block is included for transformer operation. The jumper must be removed for low impedance (8Ω or 6Ω) direct coupled operation.

Connections are provided on the terminal for both transformer and low impedance connection. An NL4 Speakon ^ connector is included for low impedance (8Ω or 6Ω) direct coupled operation.

Note: When using the Speakon ^® input connection, the jumper must be removed from the barrier terminal.

Fig. 7

ALA15T Dimensions

ALA20T Dimensions

©2015 Atlas Sound L.P. and Innovative Electronic Designs, LLC. All Rights Reserved. Atlas Sound is a trademark of Atlas Sound L.P. IED is a registered trademark of Innovative Electronic Designs, LLC. All other trademarks are the property of their respective owners. All specs are subject to change without notice. ATS005302 RevB 11/15