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SoundTube - SM500i-II - 5.25" Surface Mount Speaker

SoundTube - SM500i-II - 5.25" Surface Mount Speaker

SoundTube - SM500i-II - 5.25" Surface Mount Speaker 

The SM500i-II is a 5.25-inch, two-way surface-mount speaker with a midsize enclosure design that delivers effective low-end response (60 Hz) and optimal off-axis performance (2 to 10 kHz). SoundTube’s proprietary BroadBeam® waveguide tweeter system delivers consistent high-performance audio across operating bandwidth.

The SM500i-II speaker design incorporates a low-profile grille, six-position tap switch with transformer bypass and mounting hardware, including the Stealth™ bracket mounting system. The SM500i-II incorporates a security knob to reduce tampering after placement, unlimited directional aiming, and a low profile.


  • BroadBeam® waveguide technology delivers a consistent dispersion pattern up to 10 kHz for maximum coverage area per speaker.
  • One 5.25 inch (133 mm) polypropylene woofer and one 1.0 inch (25 mm) convex titanium tweeter with FerroFluid™ cooling.
  • 86.0 dB average sensitivity offers high output capabilities and reduced amplification costs.
  • Includes stainless steel screws and weatherized components for indoor and outdoor applications (SM500i-II-WX available for severe weather installations).
  • Easy access, six-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position.
  • Patented ZeroReflection™ enclosure technology for optimal sound reproduction and cabinet rigidity.
  • Aluminum grille with powder-coat finish.
  • Includes the new SM500i-II Stealth™ bracket mounting system.
  • Vertical and horizontal pivoting allow the SM500i-II to be aimed anywhere within the installation space.
  • Low profile enclosure design keeps the speaker close to the wall.
  • UL 1480 (UEAY) planned.
  • High-quality black or white paint finish.
  • Included Accessories: Safety cable with speaker mounting bolt, Euroblock connector, wall mount bracket and terminal weather boot.


Manufacturer:  SoundTube
Model Number:  SM500i-II


System Type:  5.25" coaxial, surface-mount, ported
Nominal Impedance:  4 Ohms
Sensitivity:  86 dB(A)
Frequency Response (-3 dB):  86 Hz - 22 kHz
Tweeter:  1 in / 25 mm Convex Aluminum w/ BroadBeam® Waveguide
Woofer:  5.25 in / 130 mm Poly
Connections:  Four-pin Euroblock
Selectable  25, 70.7, and 100-volt with transformer bypass position


Power Supply:  N/A
Maximum Power Consumption:  75 W
Dimensions:  11.4" (H) x 10.48" (D) x 8.36" (W)
Shipping Dimensions:  N/A
Weight:  9.5 lbs.
Shipping Weight:  11 lbs.
Warranty:  5 Years
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