Soundtube CM600I 6.5" In Ceiling Speaker with a BroadBeam Tweeter

SoundTube CM600I 6.5" In-Ceiling Speaker with BroadBeam Tweeter

The SoundTube CM600I is a premium 6.5-inch in-ceiling speaker designed to deliver maximum intelligibility and consistent edge-to-edge coverage in commercial distributed audio systems. At the heart of the CM600I is SoundTube's patented BroadBeam waveguide technology, which produces a 100-degree wide dispersion pattern at 2 kHz — significantly broader than conventional in-ceiling designs — so fewer speakers achieve equivalent coverage in large open spaces such as hotel ballrooms, corporate lobbies, and retail floors.

The CM600I pairs a 6.5-inch polypropylene woofer with a 1-inch convex aluminum BroadBeam tweeter featuring FerroFluid cooling, mounted to a proprietary cast-aluminum motor board and heat sink for thermal stability under continuous commercial operation. An 88 dB average sensitivity reduces amplifier requirements and system cost in large multi-speaker installations. The rapid-installation fixed-wing mounting mechanism with constant-tension design accepts ceiling thicknesses from 0.25 to 1.69 inches without additional hardware, and the tool-free magnetic grille with integrated safety cable simplifies in-field replacement and painting. Certified UL 1480 (UEAY) and UL 2043 for plenum installations.

Creation Networks provides complete SoundTube CMi in-ceiling system design with coverage modeling and amplifier sizing — contact us for a project quote.

Key Features

• Patented BroadBeam Waveguide — 100-degree dispersion at 2 kHz delivers wide, consistent coverage, reducing speaker count and installation cost.
• 1" Convex Aluminum Tweeter with FerroFluid — High-frequency driver with liquid cooling maintains low distortion at high SPL for extended commercial operation.
• 6.5" Polypropylene Woofer — Durable cone material with 90W RMS power handling and smooth response from 69 Hz to 22 kHz (±3 dB).
• 88 dB Average Sensitivity — High efficiency reduces amplifier power requirements, lowering system cost in multi-speaker distributed audio installations.
• Rapid Fixed-Wing Mounting — Blind-mount installation accepts 0.25"–1.69" ceiling thicknesses; no brackets or special tools required.
• Six-Position Tap Switch — Built-in rotary switch covers 25V, 70.7V, and 100V transformer line voltages plus 8-ohm direct bypass for universal amplifier compatibility.
• Tool-Free Magnetic Grille — Steel grille with integrated safety cable detaches without tools for in-field painting and easy replacement.
• UL 1480 and UL 2043 Listed — Approved for plenum ceiling and life-safety audio applications in North American commercial construction.

Typical Applications

• Hotel lobbies, ballrooms, and meeting rooms
• Corporate headquarters and open-plan offices
• Retail stores and shopping centers
• Restaurants, bars, and food service environments
• Healthcare waiting areas and patient corridors
• Houses of worship and auditoriums

Technical Specifications

Frequently Asked Questions

What makes BroadBeam technology different from standard in-ceiling tweeters?

The BroadBeam waveguide mounts the tweeter in a convex orientation that disperses high frequencies across a wider angle than flat-face or dome tweeters, resulting in more even off-axis response and better intelligibility at seating positions away from the center of the speaker's coverage zone.

How many CM600I speakers are needed per room?

Coverage area depends on ceiling height, target SPL, and ambient noise level. As a general guideline, one CM600I covers approximately 150–250 sq ft at standard commercial ceiling heights. Contact Creation Networks for a custom coverage layout.

Does the CM600I include a pre-construction bracket?

No — the standard package includes a tile bridge, Euroblock connector, paint mask, and conduit plate. An optional pre-construction bracket (AC-CM8-PCB) is available separately for new construction rough-in installations.

Is the CM600I approved for plenum ceiling spaces?

Yes. UL 2043 listing qualifies it for installation in plenum-rated air-handling ceiling spaces in North American commercial construction.

Can the CM600I be used in a 70.7V distributed system?

Yes. The built-in six-position rotary tap switch selects 25V, 70.7V, or 100V line operating modes directly on the speaker, eliminating the need for an external transformer.

What is the difference between the CM600I and the CM800I?

The CM800I uses an 8-inch polypropylene woofer with a titanium tweeter, delivering 90 dB sensitivity, 110-degree coverage, and 125W RMS — better suited for large spaces requiring higher output. The CM600I is the preferred choice for medium-sized commercial spaces where a smaller cutout is acceptable.