SKU: 56661662134

SoundTube Entertainment SM400i 4" Surface-Mount Speaker (White)

$26266.50 $29185.00
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Description

SoundTube Entertainment SM400i 4" Surface-Mount Speaker (White)The white SM400i 4 Surface Mount Speaker from SoundTube Entertainment is a coaxial, ported speaker with a low profile surface mount enclosure design for indoor outdoor applications. The proprietary BroadBeam waveguide technology incorporates a high frequency waveguide mated to a 1 convex aluminum tweeter. It helps deliver a consistent dispersion pattern across the upper registers of the frequency spectrum. This speaker features a corrosion resistant

The white SM400i 4� Surface-Mount Speaker from SoundTube Entertainment is a coaxial, ported speaker with a low-profile surface-mount enclosure design for indoor/outdoor applications. The proprietary BroadBeam waveguide technology incorporates a high-frequency waveguide mated to a 1� convex aluminum tweeter. It helps deliver a consistent dispersion pattern across the upper registers of the frequency spectrum.

This speaker features a corrosion-resistant Stealth U-bracket for easy and secure installation. The bracket utilizes one way fasteners for tool-free, theft-resistant security. The SM400i Speaker incorporates a five-position tap switch with transformer bypass position. Included port plugs can be used for added weather resistance. It delivers high-quality music and messaging for indoor and outdoor background to mid-level SPL applications. This surface-mount speaker is suitable for use in retail shops, grocery stores, restaurants, hotels, casinos, museums, trade shows, and conference rooms.

BroadBeam waveguide technology delivers a consistent dispersion pattern up to 10 kHz for a wide coverage area
Features a 4" polypropylene woofer and 1" convex titanium tweeter with FerroFluid cooling
Includes port plugs and weatherized components for indoor and outdoor applications
Easy access, five-position selectable tap switch for 25, 70.7, and 100V applications with transformer bypass position
Iridite-plated aluminum grille with protective powder-coated finish for lasting durability
Includes a tool-free Stealth U-bracket mounting system for fast and secure installation
Vertical and horizontal mounting offer precision aiming for indoor and outdoor applications
UL 1480 (UEAY) and CE approved
White paint finish
In the Box
SoundTube Entertainment SM400i 4" Surface-Mount Speaker (White)
  • U-Bracket Mount with Safety Cable
  • Euroblock Connector
  • Paint Mask
  • Terminal Weather Boot
  • Port Plugs
  • Limited 5-Year Warranty
System Type 4" (102 mm) coaxial, surface-mount, ported (20 W transformer for 25/70.7/100 V or transformer bypass)
Nominal Impedance 4 ?
Sensitivity 2.83 V/m: 85.5 dB
1 W/m: 82.5 dB

Average over published frequency response range.
1 W/m sensitivity based on voltage required to yield 1 W based on the minimum system impedance.

Frequency Response -3 dB: 97 Hz to 22 kHz
-10 dB: 76 Hz to 22 kHz
Maximum Power Program Power: 35 W
Continuous Power RMS: 20 W

Continuous power rating, EIA-426-B test.
Max SPL Level 95.5 dB @ 3.3' (1.0 m)
Coverage Angle -6 dB @ 2 kHz: 125� horizontal / 165� vertical
-6 dB @ 10 kHz: 75� horizontal / 70� vertical
Ave from 2 to 10 kHz: 125� horizontal / 125� vertical
Angle Angle of Pointability: 0 to 90� horizontal
Directivity Factor Q, 3.7 (averaged 100 Hz to 10 kHz); 3.9 @ 2 kHz
Directivity Index DI, 4.9 dB (averaged 100 Hz to 10 kHz); 5.9 dB @ 2 kHz
Tap Selector Weather-proof, five-position tap switch with transformer bypass position
Low Frequency Driver 1 x 4" (102 mm) polypropylene cone, butyl rubber surround
High Frequency Driver 1 x 1" (25 mm) convex titanium tweeter with waveguide
Low Frequency Voice Coil 1" (25 mm)
Crossover Frequency 2.27 kHz
Network Type Low-Pass & High-Pass: 12 dB per octave, 2nd order
Enclosure Material Injection-molded ABS, glass fiber reinforced
Grille Material Powder-coated aluminum
Inputs 1 x four-pin, 5.08 mm Euroblock for individual or daisy chain connection
Transformer Taps 70.7 V Output: 20 W (95.5 dB), 10 W (92.5 dB), 5 W (89.5 dB), and 3 W (86.5 dB)
100 V Output: 20 W (95.5 dB), 10 W (92.5 dB), and 5 W (89.5 dB)
25 V Output: 3 W (86.5 dB), 1 W (83.5 dB), 0.63 W (80.5 dB), and 0.31 W (77.5 dB)
Approvals UL, CE, and RoHS
Dimensions (H x W x D) 9.7 x 6.9 x 7.5" (24.6 x 17.7 x 19.0 cm) (including bracket)
Weight 5.3 lb (2.4 kg)
Packaging Info
Package Weight 8.0 lb
Box Dimensions (LxWxH) 12.0 x 10.0 x 9.0"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
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: 56661662134

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4.3 ★★★★★
Based on 9 reviews
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B
Verified Purchase
bedwyr
Los Angeles, US
★★★★★ 5
Finally
Color: 301 Black
I bought a different coffee warmer for myself, maybe 4 years ago. I live in an area that has very cold winters, and I could never enjoy even one cup of coffee in the morning without it turning quite cold halfway thru. So I bought this other warmer. It improved my situation, but only slightly. At its hottest setting, my coffee was, at best, tepid warm within 15 minutes. I finally got fed up with it and purchased this model, noting that it's warmest setting was reported to several degrees higher than my earlier one. I'm delighted to report, it works! It definitely keeps my coffee noticeably warmer, right to the end of the cup. It falls short of being "piping hot", but I'm not sure that would even be desirable. Call it "comfortably hot". I'm very glad I tried this model.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
B
Verified Purchase
Beth
Lake Worth, US
★★★★★ 5
Consistently Warm Cup Every Time
Color: Black, Color: Black
I resisted getting an electronic coffee warmer, because I hadn't had one in years. I am so glad that I changed my mind. I am no longer having to microwave my coffee again and again as it gets cold. I love that this coffee warmer has multiple temperature options. I love that I can adjust the number of hours (1-12) until I would like it to automatically shut off. It heats up quickly, so you needn't plan ahead. When you want it, it is fully functional on the spot. Since it has a heating function, my policy is to unplug it when not in use. I wouldn't give this as a gift, not because it isn't awesome, but because owning it requires a personal commitment to using it responsibly. And you must have a suitable cup. My cup, as you see here, is a celodon cup. It heats perfectly well even though the base has a shallow rim rather than a flat bottom, which makes direct contact with the heating table. If you have a similar cup, be assured that will be just fine and your coffee or other liquid will stay warm. Its versatile functionality and beautiful design make this an excellent value for the money. To me, there's nothing like a good cup of coffee in the morning and this warmer makes all the difference as it is uniformally a perfect cup, even if I get interrupted.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
J
Verified Purchase
J. Jackson
Pawtucket, US
★★★★★ 5
Nice size and works well
Color: Black
I got this to replace a rather inexpensive mug warmer that had quit working just a few months after purchase. This one is nice, you can adjust the temp, adjust how long it stays on, and it has an easy to read display so you know them temp and auto shut-off time. Its versatile as it fits a variety of mugs/cups and it works really well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
P
Verified Purchase
Pamela
Charlottesville, US
★★★★★ 5
Best mug warmer I’ve ever had!
Color: Black
This does what I had hoped my other two mug warmers would do. Actually keep my coffee hot. I also love that I can set the timer so that I don’t accidentally leave it on. Additionally, my other two warmers were activated by setting the cup down on the warmer, which meant that if somebody sat something else beside a coffee cup on it, it burned it. And that did happen. This one is only hot when you turn it on. I can also change the temperature settings and choose how long I want it to be on up to 12 hours. I definitely will buy this again for another room in the house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
A
Verified Purchase
adg4936
Port Orchard, US
★★★★★ 5
Simple and ir works well
Color: White
Keeps my beverages hot. I like that is has 3 temperatures to select.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026

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