About the SoundTube CM52-BGM
Built for background music
Get started with
a free system design
After we gather your information, we’ll send you a detailed system plan. It will include a link to a pre-filled shopping cart. Ordering is easy, and delivery is fast.
Built for background music
SoundTube designed the CM52-BGM to make background music sound good. Each in-ceiling speaker has a 5-1/4" woofer, 3/4" silk tweeter, and a steel back enclosure with a tuned port for extended bass response. BroadBeam Ring™ technology helps create a 95° horizontal coverage pattern, so music fills the available space.
A built-in transformer tap lets you use one amplifier to drive several speakers in an efficient distributed audio system. Convenient fixed-wing mounting arms make installation easier.
Product highlights:
- 5-1/4" poly woofer with butyl rubber surround and 3/4" silk dome tweeter
- BroadBeam Ring™ technology for wide off-axis performance
- 95° conical coverage
- steel back enclosure with tuned port for extended bass response
- built-in transformer for use with 70-volt commercial systems
- power taps at 1.25, 2.5, 5, 10 and 20 watts
- 8-ohm transformer bypass
- power handling: 40 watts continuous program power (when using transformer bypass)
- frequency response: 90-20,000 Hz (±3dB)
- maximum SPL: 100.5 dB
- tile bridge, conduit clamp, and paint shield included
- painted steel grille
- fixed-wing mounting arms make installation easier
- cutout diameter: 9-11/16"
- depth: 5-3/4"
- weight: 8 lbs.
- warranty: 5 years
- Our 60-day money-back guarantee
- MFR # CM52-BGM-BK
What's in the box:
- One in-ceiling speaker
- Grill w/attached safety restraint
- Terminal cover plate
- Conduit clamp
- Paint guard
REVIEWS
Customer reviews
Loading reviews...
Thanks for submitting your review
Customer photos
More details on the SoundTube CM52-BGM

Features & specs
General | ||
---|---|---|
Drivers per speaker | 2 | |
Woofer Size (inches) | 5.25 | |
Tweeter Size (inches) | 0.75 | |
System Frequency response | 67-20k | |
Maximum SPL | 99.5 | |
Power Handling | ||
Power rating | 40 | |
Peak Power rating | --- | |
Specs | ||
Width (inches) | 11-3/4 | |
Height (inches) | --- | |
Depth (inches) | 6-1/2 | |
Weight | 8 lbs |
Product Research
Features
Overview: The Soundtube CM52-BMG is a 2-way, blind-mount, in-ceiling speaker featuring a coaxially mounted 5-1/4" woofer and a 3/4" tweeter in a drawn steel backcan. The speaker features transformer tap settings for 25, 70, and 100 volt operation, and also includes a 16Ω bypass. Designed specifically for indoor background music, the CM52-BMG is ideal for hotels, restaurants, airports, churches, and similar applications.
Drivers: The CM52-BMG features a 5-1/4" polypropylene woofer with a rubber surround along with a 3/4" silk dome tweeter, all mounted in a ported steel backcan enclosure. This combination delivers high efficiency and performance across the operating bandwidth with a frequency response of 90 Hz to 20 kHz (-3db). Able to handle up to 20 watts RMS (40 watts Program power) and with a sensitivity of 87.5 dB, the CM52-BMG can provide clear powerful sound with a coverage angle of up to170˚ (@ 2kHz).
Enclosure: The CM52-BMG is housed in a drawn steel backcan with a ported ABS plastic front baffle providing added musicality with a bass response down to 65 Hz (-10 dB). Soundtube's BroadBeam Ring technology offers extended midrange clarity and ultra wide off-axis performance. The speaker includes a painted steel-mesh grill that can be painted to match the room color and includes an attached safety restraint lanyard. The CM52-BMG enclosure carries both UL1480 and UL2043 UL certifications and is CE and RoHS approved.
Mounting: Installation of the speaker is done blind-mount using a constant-tension fixed-wing mounting system. Two winged assemblies come pre-mounted to each side the speaker. Once the speaker is slid into the ceiling opening 2 Phillips-head screws on the front of the speaker are tightened. This expands out the mounting arms providing tension on the backside of the mounting surface. The CM52-BMG can be mounted to ceilings ranging in thickness from 0.035 to 1.6 inches, including drop-ceilings using the optional Tile Bridge (not included). Three secondary attachment points are provided on the back of the speaker for an additional safety line.
25/70/100 Volt: The CM52-BMG can be used in 25, 70, and 100 volt applications and includes a 16Ω bypass selection. A tap selection dial on the front of the speaker allows for easy configuration without having to remove the speaker from the ceiling. The following tap settings are available:
- 25 Volt: 0.2W, 0.4W, 0.7W, 1.3W, and 2.5W
- 70 Volt: 1.3W, 2.5W, 5W, 10W, and 20W
- 100 Volt: 2.5W, 5W, 10W, and 20W
- 16Ω
Terminals: A 4-teriminal ceramic barrier strip is provided for wiring connections. One set of terminals provides the signal input while the other set provides a pass-thru for daisy-chaining multiple speakers. Each terminal can accommodate speaker wire up to 12 gauge in size and includes a set-screw to hold the wire firmly in place.
Specifications:
- Speaker Type: 5.25", coaxial, in-ceiling
- Woofer: 5.25" treated fiber cone with cloth surround
- Tweeter: 0.75" Silk dome
- Impedance (nominal): 16Ω
- Sensitivity (1W @ 1M): 87.5dB
- Frequency Response (-3 dB): 90Hz - 20kHz
- Frequency Response (-10 dB): 65Hz - 22kHz
- Maximum Program Power: 40W
- Maximum Continuous Power: 20W
- Maximum SPL: 100.5dB
- Coverage Angle (-6dB @ 2kHz): 170˚
- Coverage Angle (-6dB @ 10kHz): 95˚
- Coverage Angle (Avg. 2 to 10kHz): 100˚
- Crossover Frequency: 5.0kHz
- Tap Settings:
- 25 Volt: 0.2W, 0.4W, 0.7W, 1.3W, and 2.5W
- 70 Volt: 1.3W, 2.5W, 5W, 10W, and 20W
- 100 Volt: 2.5W, 5W, 10W, and 20W
- 16Ω
- Enclosure Material: Sealed drawn-steel backcan, ABS front baffle
- Grill: Painted steel-mesh
- Inputs: 4-Terminal ceramic barrier strip
- Dimensions: Diameter - 11.750", Depth (incl. grill) - 6.50"
- Mounting Depth: 5.875"
- Cutout Diameter: 10.50"
- Maximum Ceiling Thickness: 0.035" to 1.60"
- Weight: 8.0 lbs.
Loading accessories...
Customer Q&A
Loading articles...