SoundTube CM400i 2-way In Ceiling Speaker w/BroadBeam Tweeter - 4" (White)
SKU: 5766737755

SoundTube CM400i 2-way In Ceiling Speaker w/BroadBeam Tweeter - 4" (White)

Sale price$159.75 Regular price$177.50
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

SoundTube CM400i 2-way In Ceiling Speaker w/BroadBeam Tweeter - 4" (White)One 4. 0 inch polypropylene woofer and one 1. 0 inch convex aluminum tweeter with FerroFluid cooling. Rapid installation blind mount, fixed wing mounting mechanism with constant tension design affixing to ceiling thicknesses ranging from 0. 025 inch (0. 6 mm) to 1. 87 inch (47. 5 mm). Easy access five position selectable tap switch for 25 , 70. 7 and 100 volt applications with transformer bypass position. Separate tool free magnetic grille and bezel

One 4.0 inch polypropylene woofer and one 1.0 inch convex aluminum tweeter with FerroFluid cooling. Rapid installation blind-mount, fixed- wing mounting mechanism with constant tension design affixing to ceiling thicknesses ranging from 0.025 inch (0.6 mm) to 1.87 inch (47.5 mm). Easy access five-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position. Separate tool-free magnetic grille and bezel assembly for ease of install and in-field painting. Powder-coated steel grille for lasting durability. 90 dB average sensitivity offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) and 2043 approved.

Included accessories: Paint mask, Euroblock connector and UL cover plate, and Choose between a color-coded (orange) tile bridge or a pre-construction bracket.

Specifications


Color White
UPC 752830440388
Manufacturer SoundTube
Manufacturer's Category CMi In-Ceiling
Shipping Weight 7.25 lbs / 3.29 kg
Carton Height 9.25 in / 234.95 mm
Carton Length 10 in / 254 mm
Carton Width 10 in / 254 mm
Certifications CE, RoHS, UL1480A, UL2043
Enclosure Properties ABS, Ported, Steel
Enclosure Volume 104 cu in / 1704.25 cu cm
Included Accessories Conduit Plate, Euroblock, Grille, Paint Mask, Choose Between a Tile Bridge or Pre-Construction Bracket
Optional Accessories WH Grille (GRL-CM400-WH)|Flangeless Magnetic Grille (GRL-CM42EZ-II-RD-WH)|Tile Bridge (AC-CMEZ42-TB)|Pre-Construction Bracket (AC-CMEZ4-PCB)|Junction Box (AC-CM-JBOX)|Connector (EUROBLOCK)
Source Inputs 4 Pin 5.08mm Euroblock
Backcan Diameter 6.05 in / 153.7 mm
Backcan Height 6.55 in / 166.4 mm
Coverage Angle (±6dB @ 2kHz) 65°
Crossover Frequency 1.8 kHz
Cutout Width/Diameter 6.6 in / 167.6 mm
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) 4.6 and 4.3
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) 5.6dB and 6.3dB
Frequency Response (± 10 dB) 75 Hz - 22 kHz
Frequency Response (± 3 dB) 90 Hz - 22 kHz
Grille Properties Standard-Flange, Magnetic, Powder-Coated, White, Paintable, Steel
Low Frequency Voice Coil 0.75 in / 19 mm
Low Pass Crossover 12 dB per octave 2nd order
Max. Ceiling Thickness 1.87 in / 47.5 mm
Max. Continuous Power RMS 20W
Max. Program Power 40 W
Minimum Impedance (Ω Ohms) 3.3 Ω
Minimum Ceiling Thickness 0.02 in / 0.6 mm
Network Type: High Pass 12 dB per octave 2nd order
Nominal Impedance (Ω Ohms) 4 Ω
Tweeter Driver 1" Convex Aluminum w/ BroadBeam® Waveguide
Woofer Driver 4" Polypropylene
Sensitivity dB @ 1W/1M 87 dB
Sensitivity dB @ 2.83V/1M 90 dB
Tap Selector Rotary Switch
Transformer Options 25 / 70.7 / 100 V, 4 Ohm direct
Transformer Taps Max. Setting (25V/70.7V/100V) 2.5W/20W/20W
Visible Diameter 8.15 in / 207 mm
Visible Height 0.47 in / 11.9 mm
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5766737755

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4.3 ★★★★★
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Product Reviews
J
Verified Purchase
Justin B.
Waukegan, US
★★★★★ 5
Sturdy, worked well
Holds it sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
B
Verified Purchase
bms
Lowell, US
★★★★★ 5
Solid as described
Value for money and easy installation
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2025
R
Verified Purchase
Ruby salas
Battle Creek, US
★★★★★ 5
Great choice to save space
Color: Black, Color: Black
Works really well. Installation is simple with included hardware. Upgraded my laptop and was able to fit thicker laptop. Glad i saved space on small desk. Extremely sturdy and great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
D
Verified Purchase
Dell Conagher
Pawtucket, US
★★★★★ 5
Pretty cheap but surprisingly solid
Color: Black
This thing comfortably fits my 16” MacBook Pro. It does tilt a bit probably due to me screwing it to the underside of my wooden desk which probably isn’t the exact use for it, but it holds really strong and isn’t going anywhere. Combining this with a small USB-C hub for some USB As and and extra HDMI and a little bit of Velcro, this holder makes for a pretty solid option to hide you laptop away if you a surprisingly clean desktop-like experience, even if you’re on a budget and can’t afford a desktop. A proper thunderbolt docking station would go a long way with this as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
J
Verified Purchase
JJD
Massapequa, US
★★★★★ 4
Works as advertised
Color: Black
Functions as described. Looks good. Laptop fits in loosely. I’d prefer a more snug fit. Other than that, works as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026

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