SKU: 47485503300

SoundTube Entertainment RS400i 4" Coaxial Open-Ceiling Speaker (White)

$26034.75 $28927.50
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Description

SoundTube Entertainment RS400i 4" Coaxial Open-Ceiling Speaker (White)The white RS400i 4? Coaxial Open Ceiling Speaker from SoundTube Entertainment is a two way ported speaker with an open ceiling enclosure design that delivers effective low end response (from 76 Hz to 22 kHz @ 10 dB). The BroadBeam technology in this speaker incorporates a high frequency waveguide mated to a 1" convex titanium tweeter. The BroadBeam high frequency waveguide delivers a consistent dispersion pattern across the operating bandwidth that

The white RS400i 4? Coaxial Open-Ceiling Speaker from SoundTube Entertainment is a two-way ported speaker with an open-ceiling enclosure design that delivers effective low-end response (from 76 Hz to 22 kHz @ -10 dB). The BroadBeam technology in this speaker incorporates a high-frequency waveguide mated to a 1" convex titanium tweeter. The BroadBeam high-frequency waveguide delivers a consistent dispersion pattern across the operating bandwidth that offers optimum edge-to-edge coverage and reduced power needs.

The RS400i Speaker incorporates a low-profile grille and a five-position tap switch with transformer bypass position. It features a SpeedClamp self-locking cable grip for fast, easy, and secure installation. Designed for indoor and outdoor background to foreground SPL applications, the RS400i Speaker includes a single-point mounting system for rapid open-ceiling installations. The broad dispersion pattern of 125� and high sensitivity of 82.5 dB 1W/1m makes this speaker suitable for retail, restaurants, grocery stores, hotels, casinos, fitness centers, conference rooms, big box stores, museums, trade shows, airports, and other open-ceiling applications.

BroadBeam waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage (up to 10 kHz, independently verified)
Features a 4" (102mm) polypropylene woofer and 1" (25mm) convex titanium tweeter with FerroFluid cooling
Weatherized components for indoor and outdoor applications
Includes UL-listed hanging hardware with adjustable galvanized steel cables and integrated SpeedClamp self-locking cable grip
Features an Euroblock connector and terminal weather boot
ZeroReflection enclosure technology for optimal sound reproduction and cabinet rigidity
Easy access five-position selectable tap switch for 25, 70.7, and 100V applications with transformer bypass position
Steel grille with protective powder-coated finish for durability
Can also be surface-mounted with the AC-RS-SM5 mount bracket (not included)
UL 1480 (UEAY) approved
White paint finish
In the Box
SoundTube Entertainment RS400i 4" Coaxial Open-Ceiling Speaker (White)
  • Hanging Hardware
  • Euroblock Connector
  • Terminal Weather Boot
  • Limited 5-Year Warranty
System Type 4" (102 mm), coaxial, open-ceiling, ported
20 W transformer for 25/70.7/100 V or transformer bypass applications
Impedance Nominal: 4 ?

Impedance listed per IEC 60268-5 with a minimum less than 80% the nominal impedance.
Sensitivity 85.5 dB @ 2.83 V/1 m
82.5 dB @ 1 W/1 m

1 W/1 m sensitivity determined using nominal impedance.
Frequency Response 95 Hz to 20 kHz @ -3 dB
76 Hz to 22 kHz @ -10 dB

Frequency response measured in half or full space as dictated by speaker mounting configuration.
Max. Program Power 40 W

Maximum program power is 3 dB above maximum continuous power.
Max. Continuous Power RMS 20 W

Continuous power rating, EIA-426-B test.
Max. Power SPL 95.5 dB @ 1 m

Maximum output based on maximum continuous power.
Coverage Angle 125� (-6 dB @ 2 kHz)
80� (-6 dB @ 10 kHz)
125� (Averaged 2 to 10 kHz)
Directivity Factor 3.5 (Averaged 100 Hz to 10 kHz); 4.6 (2 kHz)
Directivity Index 4.2 (Averaged 100 Hz to 10 kHz); 6.6 dB (2 kHz)
Tap Selector Five-position rotary switch with transformer bypass
Transformer Taps Output at 70.7 V:
95.5 dB @ 20 W
92.5 dB @ 10 W
89.5 dB @ 5 W
86.5 dB @ 2.5 W

Output at 100 V:
95.5 dB @ 20 W
92.5 dB @ 10 W
89.5 dB @ 5 W

Output at 25 V:
86.5 dB @ 2.5 W
83.5 dB @ 1 W
80.5 dB @ 0.63 W
77.5 dB @ 0.31 W
Transducer Low-Frequency Driver: 4" (102 mm) polypropylene cone, butyl rubber surround
High-Frequency Driver: 1" (25 mm) convex titanium tweeter with waveguide
Voice Coil Low-Frequency: 1" (25 mm)
Crossover Frequency 2.3 kHz
Network Type Low & High Pass: 12 dB per octave, 2nd order
Enclosure Material Injection molded ABS, glass fiber reinforced
Grille Steel with powder-coat finish
Inputs 4-pin, 5.08 mm Euroblock for individual or daisy chain connection
Approvals UL 1480 (UEAY) and 2239
CE
RoHS
Dimensions (� x H) 7.7 x 8.8" (195.6 x 223.5 mm)
Weight 5.0 lb (2.3 kg)
Packaging Info
Package Weight 7.0 lb
Box Dimensions (LxWxH) 11.0 x 10.0 x 10.0"
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: 47485503300

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4.9 ★★★★★
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Evgeniya Krasnikova
West Palm Beach, US
★★★★★ 5
Excellent sunscreen, my favorite
Size: 1.7 Ounce (Pack of 1), Size: 1.7 Ounce (Pack of 1)
In search for a perfect tinted sunscreen I have tried just about every brand of tinted mineral sunscreen that’s available here on Amazon, so you might recognize me from other reviews. I have a sensitive skin and can’t tolerate chemical sunscreen. I also have red and bumpy skin on my cheeks due to rosacea, so I need a tint to cover redness. I’m really glad I finally decided to give Sunbum tinted sunscreen a try because it quickly became one of my favorites. My other favorite is MD Solar Science BB cream in shade Light. These two are quite similar, both are very silicone like, due to a great amount of dimethicone. They feel like primers and because of that are very sticky and hard to wash off your fingers. But both look very natural and skin like. MD Solar Science (light shade) is slightly darker while Sunbum is pretty pale but not in an unhealthy way. My skin is a bit darker than Sunbum shade right now. Yet it covers my rosacea and evens out my skin tone just enough. It’s not drying but also not shiny, and because of that it doesn’t magnify wrinkles, which is a big plus: I’m tired of tinted sunscreens highlighting the wrinkles I have that are not even noticeable without them. Sunbum is slightly lighter and provides a bit less coverage than MD Solar. It also doesn’t have much zinc, which was a point of criticism from popular bloggers. Because of that it might not be perfect for everyday wear. But if you want to have the most natural “no make up” look and you’re light skinned, this is a great choice on the days when you’re not expecting to be under too much sun. I use retinol on my forehead at night and I didn’t get sunburnt when using this sunscreen. So the only concern here would be the gradually accumulated damage from the long UV-A rays. Another thing I like is that unlike MD Solar, Sunbum doesn’t contain vitamin C and therefore doesn’t irritate my sensitive skin. It’s also less expensive. I will keep repurchasing. Note: in the unfiltered photo attached here, you can see the sunscreen after a 5 hour wear, that included eating, touching my face etc, so it’s a bit worn off and the redness on my cheeks is more visible. Even when freshly applied it didn’t cover redness completely because of being light coverage sunscreen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2023
D
Verified Purchase
DeeAyGee
Battle Creek, US
★★★★★ 3
Decent but not the best
Size: 1.7 Ounce (Pack of 1)
I like that this sunscreen is matte and tinted, but that’s about it. I have pretty oily skin and the mattifying effect only lasts for about 6-7 hours. Unfortunately this product doesn’t absorb very well either. It tends to accumulate in any wrinkles and also tends to sit on top of any sort of facial hair or areas of dry skin. A much better product, that absorbs very well and controls oil literally all day long, is Trader Joe’s mattifying facial sunscreen in the sea foam green tube. It isn’t tinted like Sun Bum but it beats it in every other category, especially in price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
R
Verified Purchase
Rachel
Lexington, US
★★★★★ 5
Holy grail face SPF - mineral, tinted and matte
Size: 1.7 Ounce (Pack of 1)
Title says it all. This is my holy grail face SPF. It’s mineral and non-toxic. It’s lightly tinted so it looks beautiful on your skin alone and helps even out your skin. It’s also matte so it wears well under makeup. It’s moisturizing and applies and blends smoothly onto the skin. Amazing product. I have it on subscribe and save.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
Y
Verified Purchase
Yilian
San Leandro, US
★★★★★ 5
Lightweight, non-greasy protection you can trust
Size: 1.7 Fl Oz (Pack of 1), Size: 1.7 Fl Oz (Pack of 1)
This Neutrogena Ultra Sheer sunscreen is one of the best I’ve tried, especially if you don’t like heavy or greasy sunscreens. It has a very lightweight texture that absorbs quickly into the skin and leaves a dry-touch finish, so it doesn’t feel sticky or oily at all. What I really like is that it provides strong broad-spectrum SPF protection while still feeling comfortable for everyday use. It works great under makeup and doesn’t leave a white cast, which is a big plus. I’ve used it on my face and body, and it hasn’t caused any breakouts or irritation. It’s also water-resistant, so it’s perfect for hot days or outdoor activities. Overall, this is a reliable sunscreen that gives you high protection without that heavy sunscreen feeling. Definitely a must-have for daily skincare.
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Reviewed in the United States on March 20, 2026
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Verified Purchase
Surprise Tin
San Leandro, US
★★★★★ 5
Good, Even for Sensitive Skin
Size: 1.7 Fl Oz (Pack of 1)
I have been using this sunscreen every day with good results. It goes on smoothly, absorbs rapidly with no grease or leftover film, and it feels moisturizing. I have sensitive skin in general, and this does not irritate my skin whatsoever. It certainly exceeds my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026

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