Atlas Sound SM12CXT-W 12" 2-Way Compression Driver Coaxial Surface Mount Speaker with 60-Watt 70V Transformer (White)

Product Overview

The Atlas Sound SM12CXT-W is a white-finish 12" two-way coaxial loudspeaker built for distributed 70V audio systems in venues where the speaker needs to blend into light-colored ceilings, walls, and architectural finishes. Its coaxial layout — a 12" low-frequency transducer with a concentric 1" exit compression driver — produces point-source coverage well suited to speech intelligibility and music playback across large rooms. An internal 60-watt 70.7V/100V transformer simplifies constant-voltage system design, while a bypass option allows full 250-watt RMS operation at 8 ohms. The result is a single surface mount speaker that handles paging, program audio, and reinforcement duty in education, worship, and commercial meeting environments.

Product Description

White enclosures matter in real installations: in sanctuaries with light plaster walls, modern offices with white ceiling grids, and refreshed school multi-purpose rooms, the SM12CXT-W disappears visually where a black cabinet would stand out. Behind the heavy-duty metal grille sits the 12CXT60 coaxial assembly. The 12" woofer uses a curvilinear treated-paper cone that keeps harmonic distortion low, and the 1" exit compression driver shares the same acoustic axis for consistent imaging anywhere in the coverage area. An integrated crossover network manages the handoff between drivers, both of which feature permanently aligned copper voice coils wound on polyimide formers. Each driver is individually fuse-protected.

System designers can tap the internal high-efficiency transformer at 7.5, 15, 30, or 60 watts on 70.7V or 100V distributed speaker lines, balancing output level against amplifier headroom across multiple zones. When a project calls for more output — say, a gymnasium or all-hands space — the transformer bypasses for direct 8-ohm operation at 250 watts RMS. Wiring options include a barrier strip for 70.7V/100V/8-ohm connections and a parallel 4-pole speakON jack for 8-ohm use, and the input panel accepts a standard 4" square box cover (Raco 753 or equivalent) where flex conduit termination is specified. For ceiling suspension, the wood enclosure carries twelve 1/4"-20 threaded fly points supporting nearly any hang orientation, and pre-drilled T-nut inserts accept OmniMount-style wall brackets. Coverage is a 90-degree conical pattern measured at the 2kHz octave band, with 99dB sensitivity keeping amplifier requirements modest. Specifying a darker room instead? The identical loudspeaker in black is available as the Atlas Sound SM12CXT-B.

Key Features

• White Architectural Finish — Durable white rough-coat enclosure and grille blend into light ceilings and walls in finished commercial spaces.
• Coaxial Point-Source Driver — 12" woofer and 1" exit compression driver share one axis for even tonal balance throughout the room.
• Constant-Voltage Ready — Internal 60-watt 70.7V/100V transformer with 7.5/15/30/60-watt taps fits multi-zone distributed audio designs.
• 250W RMS at 8 Ohms — Transformer bypass unlocks full low-impedance power handling for high-output rooms.
• High 99dB Sensitivity — Reaches commercial SPL targets with modest amplifier power, reducing system cost per zone.
• Twelve Rigging Points — 1/4"-20 threaded inserts allow overhead flying in nearly any orientation.
• OmniMount-Compatible — Pre-drilled T-nut inserts simplify wall-bracket installation.
• Flexible Termination — Barrier strip plus 4-pole speakON input, with support for a 4" square box cover where conduit is required.
• Fused Driver Protection — Independent fuses safeguard both the woofer and compression driver.

Typical Applications

• House of worship sanctuaries with light interior finishes
• Auditoriums and performance spaces
• Multi-purpose rooms and cafeterias
• Commercial meeting spaces and all-hands rooms
• Training rooms requiring speech and program audio

Technical Specifications

Frequently Asked Questions

What is the difference between the SM12CXT-W and SM12CXT-B?
Finish only. The white SM12CXT-W and the black SM12CXT-B share identical drivers, transformer, power handling, and dimensions — choose the color that matches the room.

Which transformer tap should I use in a 70V system?
Select the tap (7.5, 15, 30, or 60 watts) based on the SPL each zone requires and the total load your 70V amplifier supports. Lower taps allow more speakers per amplifier channel.

Can I run it without the transformer?
Yes. Bypass the internal transformer for direct 8-ohm operation, where the speaker handles up to 250 watts RMS from a low-impedance amplifier.

How is the speaker mounted?
Three ways: overhead suspension via twelve 1/4"-20 fly points, wall mounting with optional brackets, or OmniMount-style brackets using the pre-drilled T-nut inserts.

Does it meet conduit termination requirements?
Yes. The input panel accepts a standard 4" square box cover (Raco 753 or equivalent) so installers can terminate flex conduit at the enclosure where code requires it.

Who can help me design the system around this speaker?
The SM12CXT-W carries a 60-month AtlasIED warranty, and the Creation Networks team can assist with zone layout, amplifier sizing, and AV system integration — reach out here.