




Soundtube SM400i-BK - Two-Way 4-Inch Surface Mount Loudspeaker (Black)
Availability:
Special Order ItemThis item is not stocked and needs to be ordered from the manufacturer. Please contact our sales team for more information.

Description
The SM400i is a 4Ó, coaxial, ported speaker with a low-profile surface-mount enclosure design for indoor/outdoor applications that delivers a consistent dispersion pattern (2-10 kHz, independently verified). Mounting hardware is included and features a corrosion and theft-resistant Stealthª U-bracket for easy and secure installation. Nearly invisible from sight-lines, the Stealth U-bracket includes one way fasteners for tool-free theft-resistant security. SoundTubeÕs custom-engineered driver and electroacoustic 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 resistance.
Features:
- BroadBeam¨ waveguide technology delivers a consistent dispersion pattern up to 10 kHz for maximum coverage area per speaker (independently verified).
- One 4Ó (102 mm) polypropylene woofer and one 1Ó (25.4 mm) convex titanium tweeter with FerroFluid cooling.
- Includes port plugs and weatherized components for indoor and outdoor applications.
- Patented ZeroReflectionª enclosure technology for optimal sound reproduction and cabinet rigidity.
- Easy access, five-position selectable tap switch for 25, 70.7, and 100 V applications with transformer bypass position.
- Iridite-plated aluminum grille with protective powder-coated finish for lasting durability.
- Includes a tool-free Stealthª U-bracket mounting system for fast and secure installation.
- Vertical and horizontal mounting offer precision aiming for indoor and outdoor applications.
- UL 1480A 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.
Color | Black |
UPC | 644216203208 |
Manufacturer | SoundTube |
Manufacturer's Category | SMi Surface Mount |
Height | 6.97 in / 177 mm |
Width/Diameter | 9.68 in / 245.9 mm |
Shipping Weight | 7.3 kg / 3.31 kg |
Carton Height | 9.5 in / 241.3 mm |
Carton Length | 11.75 in / 298.45 mm |
Carton Width | 9.25 in / 234.95 mm |
Certifications | CE, RoHS, UL1480A |
Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Ported |
Enclosure Volume | 154.7 cu in / 2535.08 cu cm |
Included Accessories | Euroblock, Port Plug, Safety Cable, Terminal Weather Boot, U-Bracket |
Optional Accessories | Black Grille (GRL-SM400-BK)|Black Bracket (AC-SM4-BK)|10" Safety Cable (AC-SM-SC10)|Black Weatherboot (WEATHERBOOT-S-BK)|Connector (EUROBLOCK) |
Source Inputs | 4 Pin 5.08mm Euroblock |
IP Rating | IP4X |
TAA Compliant (Trade America) | No |
BAA Compliant (Made in USA) | No |
Crossover Frequency | 2.3 kHz |
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 3.7 and 3.9 |
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 4.9dB and 5.9dB |
Frequency Response (± 10 dB) | 76 Hz - 22 kHz |
Frequency Response (± 3 dB) | 97 Hz - 22 kHz |
Grille Properties | Aluminum, Powder-Coated |
Low Frequency Voice Coil | 1 in / 25.4 mm |
Low Pass Crossover | 12 dB per octave 2nd order |
Max. Continuous Power RMS | 20W |
Max. Program Power | 35 W |
Minimum Impedance (_ Ohms) | 3.7 _ |
Mounting Depth | 7.47 in / 189.7 mm |
Network Type: High Pass | 12 dB per octave 2nd order |
Nominal Impedance (_ Ohms) | 4 _ |
Tweeter Driver | 1" Convex Aluminum w/ BroadBeam¬ Waveguide |
Woofer Driver | 4" Polypropylene |
Sensitivity dB @ 1W/1M | 82.5 dB |
Sensitivity dB @ 2.83V/1M | 85.5 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 |
The SM400i is a 4Ó, coaxial, ported speaker with a low-profile surface-mount enclosure design for indoor/outdoor applications that delivers a consistent dispersion pattern (2-10 kHz, independently verified). Mounting hardware is included and features a corrosion and theft-resistant Stealthª U-bracket for easy and secure installation. Nearly invisible from sight-lines, the Stealth U-bracket includes one way fasteners for tool-free theft-resistant security. SoundTubeÕs custom-engineered driver and electroacoustic 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 resistance.
Features:
- BroadBeam¨ waveguide technology delivers a consistent dispersion pattern up to 10 kHz for maximum coverage area per speaker (independently verified).
- One 4Ó (102 mm) polypropylene woofer and one 1Ó (25.4 mm) convex titanium tweeter with FerroFluid cooling.
- Includes port plugs and weatherized components for indoor and outdoor applications.
- Patented ZeroReflectionª enclosure technology for optimal sound reproduction and cabinet rigidity.
- Easy access, five-position selectable tap switch for 25, 70.7, and 100 V applications with transformer bypass position.
- Iridite-plated aluminum grille with protective powder-coated finish for lasting durability.
- Includes a tool-free Stealthª U-bracket mounting system for fast and secure installation.
- Vertical and horizontal mounting offer precision aiming for indoor and outdoor applications.
- UL 1480A 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.
Color | Black |
UPC | 644216203208 |
Manufacturer | SoundTube |
Manufacturer's Category | SMi Surface Mount |
Height | 6.97 in / 177 mm |
Width/Diameter | 9.68 in / 245.9 mm |
Shipping Weight | 7.3 kg / 3.31 kg |
Carton Height | 9.5 in / 241.3 mm |
Carton Length | 11.75 in / 298.45 mm |
Carton Width | 9.25 in / 234.95 mm |
Certifications | CE, RoHS, UL1480A |
Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Ported |
Enclosure Volume | 154.7 cu in / 2535.08 cu cm |
Included Accessories | Euroblock, Port Plug, Safety Cable, Terminal Weather Boot, U-Bracket |
Optional Accessories | Black Grille (GRL-SM400-BK)|Black Bracket (AC-SM4-BK)|10" Safety Cable (AC-SM-SC10)|Black Weatherboot (WEATHERBOOT-S-BK)|Connector (EUROBLOCK) |
Source Inputs | 4 Pin 5.08mm Euroblock |
IP Rating | IP4X |
TAA Compliant (Trade America) | No |
BAA Compliant (Made in USA) | No |
Crossover Frequency | 2.3 kHz |
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 3.7 and 3.9 |
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 4.9dB and 5.9dB |
Frequency Response (± 10 dB) | 76 Hz - 22 kHz |
Frequency Response (± 3 dB) | 97 Hz - 22 kHz |
Grille Properties | Aluminum, Powder-Coated |
Low Frequency Voice Coil | 1 in / 25.4 mm |
Low Pass Crossover | 12 dB per octave 2nd order |
Max. Continuous Power RMS | 20W |
Max. Program Power | 35 W |
Minimum Impedance (_ Ohms) | 3.7 _ |
Mounting Depth | 7.47 in / 189.7 mm |
Network Type: High Pass | 12 dB per octave 2nd order |
Nominal Impedance (_ Ohms) | 4 _ |
Tweeter Driver | 1" Convex Aluminum w/ BroadBeam¬ Waveguide |
Woofer Driver | 4" Polypropylene |
Sensitivity dB @ 1W/1M | 82.5 dB |
Sensitivity dB @ 2.83V/1M | 85.5 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 |
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