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SM400i-WH 4in COAXIAL SURFACE-MOUNT SPEAKER/97 Hz-22 kHz/White by Soundtube

SKU: SM400i-WH
SM400i-WH 4in COAXIAL SURFACE-MOUNT SPEAKER/97 Hz-22 kHz/White by Soundtube

SM400i-WH 4in COAXIAL SURFACE-MOUNT SPEAKER/97 Hz-22 kHz/White by Soundtube

  • $235.00
  • Brand
  • SKU
  • Weight
    8.00 lbs
  • Warranty
    5 Years
  • Condition
  • Status
Product Questions? Ask Our Experts!
In stock (50 items available)
The SM400i is a 4-inch, coaxial, portedspeaker with a low-profile surface-mountenclosure design for indoor/outdoorapplications that delivers a consistentdispersion pattern (2 to 10 kHz, independently verified.)
  • Brand
  • SKU
  • Weight
    8.00 lbs
  • Warranty
    5 Years
  • Condition
  • Status
Questions? Ask our experts!

  • $235.00

The SM400i is a 4-inch, coaxial, ported speaker with a low-profile surface-mount enclosure design for indoor/outdoor applications that delivers a consistent dispersion pattern (2 to 10 kHz, independently verified.) Mounting hardware is included and features a corrosion and theft resistant Stealth™ U-bracket for easy and secure installation. Nearly invisible from sightlines, the Stealth™ U-bracket includes one way fasteners for tool-free, theft-resistant security. SoundTube’s custom-engineered driver and electro-acoustic network deliver high-performance sound in a cost-effective surface-mount speaker design. The SM400i speaker incorporates a five-position tap switch with transformer bypass position for simplified ordering and stocking. Included port plugs can be used for added weather resisitance


  • BroadBeam® waveguide technology delivers a consistent dispersion pattern up to 10 kHz for maximum coverage area per speaker (indepedently verified).
  • One 4 inch (102 mm) polypropylene woofer and one 1 inch (25 mm) convex titanium tweeter with FerroFluid cooling.
  • Includes port plugs and weatherized components for indoor and outdoor applications.
  • Patented ZeroReflection™ enclosure technology for optimal sound reproduction and cabinet rigidity.
  • Easy access, five-position selectable tap switch for 25-, 70.7- and 100-volt applica?tions 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.
  • High quality black or white paint finish. Custom colors available.
  • Included accessories: corrosion and theft resistant U-bracket mount with safety cable, Euroblock connector, paint mask, terminal weather boot, and port plugs.
  • Optional port plugs are included for added weather resistance.
System Type 4-inch, coaxial, surface-mount, ported (20-watt transformer for
25/70.7/100-volt or transformer bypass)
Impedance (Nominal) 4 ohm
Sensitivity dB @ (2.83V / 1 m)3 85.5 dB
Sensitivity dB @ 1 W/l m4 82.5 dB
Frequency Response (-3 dB)1 97 Hz-22 kHz
1 requency Response (-1C cB)- 76 Hz - 22 kHz
Max. Program Power 35 W
Max. Continuous Power RMS2 20 W
Max. SPL dB @ 1 m 95.5 dB
Coverage Angle (-6 dB @ 2 kHz) 125° horizontal / 165° vertical
Coverage Angle (-6 dB @ 10 kHz) 75° horizontal/70° vertical
Coverage Angle (Ave from 2 to 10 125° horizontal / 125° vertical
Angle of Portability 0 to 90° horizontal
Directivity Factor (Q) 3.7 (Averaged 100 Hz -10 kHz); 3.9 @ 2 kHz
Directivity Index (Dl) 4.9 dB (Averaged 100 Hz -10 kHz); 5.9 dB @ 2 kHz
Tap Selector Weather-proof, five-position tap switch with
transformer bypass position
Low-I requency Driver 1 x 102mm (4 in) polypropylene cone, butyl rubber surround
High-Frequency Driver 25mm (1 in) convex titanium tweeter with waveguide
Low Frequency Voice Coil 25mm(l in)
Crossover 1requency 22/WWl
Network Type: Low-Pass 12 dB per octave, 2nd order
Network Type: High-Pass 12 cB pet octave. 2nd order
Enclosure Material Injection-molded ABS. glass fiber reinforced
Grille Material Powder-coated aluminum
Inputs Four-pin, 5.08 mm Euroblock for individual or daisy chain connection
Color Options Black or white (Custom colors available)
Height 246 mm (9.68 in)
Width 177 mm (6.97 in)
Depth (Including Bracket) 190 mm (7.47 in)
Weight 2.4 kg (5.3 lbs)
Shipping Weight 3.3 kg (7.3 lbs)
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.

UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations.UPS Ground does not deliver on Saturdays, Sundays or Holidays.

USPS Priority Mail/USPS Express Mail For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.

Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.

International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.


Major Credit Cards: Visa, MasterCard, Discover and American Express.
Paypal: You can select an option of Paying with Paypal in our shopping cart.
Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 30-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy

  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee