Soundtube RS500i

The Soundtube RS500i is a coaxial pendant loudspeaker with enhanced bass response, suitable for use indoors and outdoors. High impedance transformer fitted for 70.7v or 100 volt line as well as a bypass setting to use the speaker on a low impedance, 8 ohm sound system.

The RS 500i is rated at 75 watts RMS at 8 ohms or 33 watts when used in a 100 volt line sound system. Black or white.

SoundTube speakers deliver better, more intelligible sound through Broad-Beam dispersion technology, which distributes the higher frequencies of sound in a wider, more effective pattern than conventional speakers. This allows for wider spacing of speakers and fewer speakers overall, without sacrificing intelligibility.

From retail to restaurant, entertainment to education, safety to sport, SoundTube speakers have set new standards for performance, installation ease, style and value.


  • Patented BroadBeam® waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage (up to 10 kHz, independently verified).
  • Fitted with 5.25" (102 mm) polypropylene woofer and 1" (25 mm) 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 for fast, easy and secure installation. Also includes Euroblock connector and terminal weather boot.
  • 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 applications with transformer bypass position simplifies ordering and inventory tracking.
  • Steel grille with protective powder-coated finish for lasting durability.
  • Average sensitivity of 82.5 dB offers high-output capabilities and reduced amplification costs.
  • UL 1480 (UEAY) approved.
  • High-quality black or white paint finish. Custom paint colors optional.
  • Optional accessory: AC-RS-SM5 bracket for surface-mount applications.
100V 8ohms
List Ex VAT: £253.33
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Frequency Response (-3 dB)

87 Hz - 22 kHz

Low Frequency (-10 dB)

61 Hz - 22 kHz



Power Capacity RMS

75 W

Max SPL dB @ 1 M

105.5 dB

Nominal Impedance

8 ohm


1" / 25 mm BroadBeam® 


5.25" Poly


4-pin Euroblock


298.2 mm (11.74 in)


245.9 mm (9.68 in.)


4.3 kg (9.5 lbs)


Black or White