DT12 - Pregnant Atlas Sound - Free user manual and instructions

Product Type	1' x 2' Drop-In Speaker System
Brand	Atlas Sound
Model	DT12
Application	Paging and background music in shopping malls, department stores, and similar spaces
Frequency Response	85 Hz - 8 kHz (±5 dB)
Sensitivity (1W/1M)	97 dB
Dispersion (-6 dB at 2 kHz Octave Band)	105°
Woofer	8" Dual Cone
Magnet Weight	10 oz (283 g)
Transformer Taps (25V / 70.7V)	0.25, 0.5, 1, 2, 4 Watts plus 8Ω bypass
Impedance (Bypass)	8 Ω
Dimensions (L x W x D)	23.18" x 12.88" x 4.5" (606 x 327 x 114 mm)
Weight	9.5 lbs (4.3 kg)
Color	White
Grille Material	White mesh metal grille
Enclosure	Pre-assembled with integral E.O. box
Installation	Drop-in 1' x 2' ceiling grid
Safety Certifications	UL1480, UL2043
Wiring	Red (+) and black (-) leads; wire nuts included; external tap selector switch
Included Accessories	Wire nuts for field wiring
Operating Environment	Indoor, dry locations only
Cleaning	Wipe with a dry cloth; do not use liquids or solvents
Compliance	Install according to local building codes and NFPA 70/72

Frequently Asked Questions - DT12 Atlas Sound

How do I install the DT12 speaker into a ceiling grid?

Cut a 12.25" opening in the acoustic tile. Remove the E.O. box cover, connect field wiring to the red (+) and black (-) leads using the included wire nuts, and set the tap selector switch for the desired power. Insert the DT12 into the grid with the tile support edge facing outward, then replace the cut tile section.

What power taps are available on the DT12?

For 25V and 70.7V systems, the available taps are 0.25, 0.5, 1, 2, and 4 watts. There is also an 8Ω bypass setting for direct connection to an amplifier.

Can the DT12 be used with a standard home audio amplifier?

Yes, by setting the tap selector to the 8Ω bypass position, the DT12 can be used with a standard amplifier rated for 8Ω loads. The power handling is 4W continuous, but it can be used with higher power amplifiers as long as the volume is limited.

What is the frequency response of the DT12?

The frequency response is 85 Hz to 8 kHz with a tolerance of ±5 dB. It is designed for clear paging and background music rather than full-range reproduction.

Is the DT12 certified for fire safety?

Yes, the DT12 is certified to UL1480 and UL2043 standards, making it suitable for plenum spaces and fire-rated ceiling installations.

How do I clean the DT12 grille?

Use a soft, dry cloth to gently wipe the grille. Do not use water, cleaning solvents, or abrasive materials, as they may damage the finish.

Can I daisy-chain multiple DT12 speakers?

Yes, the DT12 can be paralleled with other 70.7V/25V speakers. Ensure the total tap wattage does not exceed the amplifier's power rating. For example, four speakers set to 4W each would require a 16W amplifier output.

What type of conduit connection is required?

A UL recognized conduit clamp must be used for conduit connections. The wiring cavity is not intended to be a junction box, so all connections should be made in a separate box.

What is the dispersion angle of the DT12?

The dispersion is 105° at the 2 kHz octave band (-6 dB), providing wide coverage for paging and background music applications.

Is the DT12 available in colors other than white?

The standard color is white, which blends with most acoustic ceiling tiles. Custom colors may be available upon special order from Atlas Sound.

USER MANUAL DT12 Atlas Sound

Installation Sheet for DT12

Acoustic Tile

1. Using a measuring device, mark off 12.25" from one end of tile.
2. Carefully cut tile on mark using utility knife, drywall saw, or RotoZip ^™ .
3. Remove E.O. box cover (A) on enclosure.
4. Use two wire nuts (included) to attach the red (+) and black (-) leads to the field wiring.
5. Set tap selector switch (B) for desired power.
6. Install DT12 into the grid with the unit's tile support edge facing out from the installation location. If the speaker location is not favorable, the tile support edge may be moved to the other side of the DT12.
7. Replace the cut section of acoustic tile.

Power Settings 25V / 70.7V: .25, .5, 1, 2, 4 watts and 8Ω

Frequency Response: 85 Hz - 8 kHz

Sensitivity: 97 dB (1 W / 1 M)

NOTE: Wiring cavity is not intended to be used as a junction box.

A UL recognized conduit clamp must be used for conduit connections.

Installation must comply with all Building

Codes and NFPA

Installation must

NFPA 70/72 wirin

and comply with

Local Building Co

DT12

1' x 2' Drop-In Speaker System

White electronic device with black and white casing, labeled DT12 (no other text or symbols visible)

Features

• All in One, Pre-Assembled Unit Drops Into Ceiling Grids to Reduce Installation Time and Costs
  • Integral E.O. Box for Conduit
• Attractive White Mesh Grille Blends in with Most Acoustic Ceiling Tiles
  • Standard 8" Speaker with Built-In 25V / 70.7V Transformer
  • 8Ω Operation Via Transformer Bypass Setting on Tap Selector Switch
  • External Tap Selector Switch Reduces Wiring Errors
  UL1480 / UL2043

Specifications

Frequency Response 85Hz - 8kHz (±5dB)

Sensitivity (1W/1M) 97dB

Dispersion 105° – 2kHz Octave Band (-6dB)

Woofer 8" Dual Cone

Woofer Magnet Weight 10oz (283g)

Length 23 18 " (606mm)

Width 12 % (327mm)

Depth 4 12 (114mm)

Weight 9.5lbs (4.3kg)

Color White

APPLICATION

Installer friendly Atlas Sound DT12 provides clear paging and background music in a labor saving package. Ideal for use in shopping malls, department stores, and anywhere large quantities of loudspeakers are to be utilized.

General Description

The Atlas Sound DT12 1' x 2' drop in speaker system simplifies loudspeaker installation by providing an all in one speaker package in acoustic ceiling grids. The system includes the speaker / transformer, enclosure, and grille with an external mounted tap selector switch. The compact 2-unit master pack is designed to save warehouse space. You will enjoy clear, crisp paging and background music from the installation friendly DT12 without compromising building cosmetics.

Architect & Engineer Specifications

The loudspeaker, transformer, baffle and enclosure shall be the Atlas Sound 1' x 2' drop in speaker system Model DT12. The loudspeaker shall be an 8" dual cone type with an integral 25V / 70.7V matching transformer and externally mounted tap selector switch. Power taps to include .25, .5, 1, 2, & 4 Watt for 25V and 70.7V systems as well as an 8Ω bypass. The assembly to include a speaker enclosure mounted to a 1' x 2' white metal grille.

Black and white electronic device labeled DT12 (Back) mounted on a black rectangular base, with no visible text or symbols beyond the label.

Plain gray surface with no visible text, symbols, or markings

DT12

(Grille)

Atlas Sound

DT12 Frequency Response

DT12 Impedance

Frequency (Hz) Octave Smoothing = 30.0%

Technical line drawing of a sound device mounted on a rectangular base plate (no text or symbols)