Description
The SM400i is a 4-inch coaxial surface-mount speaker engineered to deliver clear full-range audio in indoor and outdoor environments. It uses a coaxial driver arrangement and a ported enclosure to extend low-frequency response while maintaining compact dimensions. The enclosure and grille are weatherized to allow dependable operation in exposed locations – making the SM400i a discreet architectural audio solution.
Key features include a 4 inch polypropylene woofer and a 1 inch convex titanium tweeter mounted on a BroadBeam waveguide to preserve consistent dispersion up to 10 kHz. The speaker includes a five-position weather-proof tap switch that supports 25V, 70.7V and 100V transformer taps plus a transformer bypass position. Port plugs and weatherized components improve resistance to moisture and contaminants.
Performance specifications include a nominal impedance of 4 ohm, sensitivity of 85.5 dB @ 2.83V/1 m and a rated frequency response of 97 Hz to 22 kHz (-3 dB). Maximum continuous RMS power is 20 W with a 35 W program rating and a maximum SPL of 95.5 dB at 1 m. Directional characteristics are specified as 125 degrees average coverage from 2 to 10 kHz, providing broad and uniform coverage.
Connectivity is provided via a four-pin 5.08 mm Euroblock for individual or daisy-chain wiring. The included Stealth U-bracket provides corrosion and theft resistance and allows tool-free, theft-resistant mounting using one-way fasteners. Horizontal and vertical aiming is supported with 0 to 90 degree horizontal adjustment to target listening areas precisely.
Typical applications include background music and paging in hospitality, retail, and outdoor covered areas where compact, weather-resistant speakers are required. The consistent dispersion and ported low end make the SM400i suitable for distributed audio systems where coverage uniformity and intelligibility are priorities. It is CE and UL 1480 (UEAY) approved for compliance in professional installations.
Installation and maintenance are simplified by the included tamper-resistant hardware, Euroblock connector, terminal weather boot and paint mask. The injection-molded ABS enclosure and powder-coated aluminum grille provide durability and long-term aesthetic stability. Overall, the SM400i balances compact form factor with specification-driven acoustic performance – offering integrators an easy-to-install surface-mount speaker option.
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.
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:
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.
Exchanges:
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
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