The SoundTube XT850 is an 8-inch, 2-way in-ground outdoor loudspeaker designed for foreground music, background music, and paging in commercial, residential, and public outdoor environments. Featuring an 8-inch polypropylene woofer, 1-inch aluminum dome tweeter, and patented BroadBeam® technology, the XT850 provides 360° horizontal coverage for consistent sound distribution throughout outdoor listening areas.

Designed for permanent outdoor installations, the XT850 features an IP55-rated weather-resistant enclosure with UV-, scratch-, and chlorine-resistant components. Its in-ground design is available in granite green or sandstone, allowing the loudspeaker to blend more naturally into landscapes, gardens, patios, hospitality properties, and other outdoor environments.

The XT850 supports 25V, 70.7V, and 100V distributed audio systems and provides a 4Ω direct/bypass option, making it suitable for both constant-voltage commercial systems and compatible low-impedance amplifiers.

BroadBeam 360° Outdoor Coverage

SoundTube's patented BroadBeam waveguide technology provides smooth 360° horizontal coverage, allowing sound to be distributed around the loudspeaker rather than directed toward only one listening area.

This omnidirectional coverage makes the XT850 particularly useful for landscaped environments, patios, parks, pool areas, and other spaces where listeners may be located on multiple sides of the speaker.

8-Inch Two-Way Speaker Design

The XT850 combines an 8-inch polypropylene cone woofer with butyl rubber surround and a 1-inch aluminum dome tweeter.

Its larger 8-inch woofer provides extended low-frequency performance, with a specified frequency range reaching down to 38 Hz (-10 dB).

Performance specifications include:

• 38 Hz–22 kHz frequency response (-10 dB)
• 51 Hz–10 kHz frequency response (±3 dB)
• 3.0 kHz crossover frequency
• 85 dB sensitivity at 1W/1m
• 88 dB sensitivity at 2.83V/1m

100W Continuous Power Handling

The XT850 provides substantially greater power handling than the smaller XT550.

The XT850 is rated for:

• 100W maximum continuous RMS
• 200W maximum program power
• 4Ω nominal impedance
• 3.7Ω minimum impedance

This makes the XT850 a strong option for outdoor systems requiring higher output and greater low-frequency capability from an in-ground loudspeaker.

25V, 70.7V, 100V or 4Ω Operation

The SoundTube XT850 can be integrated into commercial distributed audio systems or used with a compatible low-impedance amplifier.

Supported configurations include:

• 25V
• 70.7V
• 100V
• 4Ω direct

The integrated transformer provides taps up to 64 watts, depending on the distributed system voltage.

A weatherproof 5-position tap switch simplifies system configuration, while the transformer bypass position provides direct 4Ω operation.

Designed for Permanent Outdoor Installations

The XT850 is constructed for demanding outdoor environments with components selected to withstand exposure associated with permanent landscape installations.

Outdoor-oriented features include:

• IP55-rated construction
• UV-resistant components
• Scratch-resistant materials
• Chlorine-resistant components
• Stainless steel fasteners
• Powder-coated weatherproof stainless steel grille
• Liquid-tight compression fittings
• Weatherproof tap selector
• Theft-resistant mounting hardware
• Multiple wire-entry locations for daisy-chaining

The XT850 is also UL 1480A approved and carries CE, IP55, and RoHS certifications according to the specifications you supplied.

SoundTube XT850 Key Features

• 8-inch 2-way in-ground outdoor loudspeaker
• Patented BroadBeam waveguide technology
• 360° horizontal coverage
• 8-inch polypropylene woofer
• Butyl rubber woofer surround
• 1-inch aluminum dome tweeter
• 38 Hz–22 kHz frequency range (-10 dB)
• 100W maximum continuous RMS power
• 200W maximum program power
• 4Ω nominal impedance
• 25V / 70.7V / 100V transformer operation
• 4Ω direct operation
• Integrated 64W transformer
• Weatherproof 5-position tap switch
• Transformer bypass position
• IP55 rated
• UL 1480A approved
• UV-, scratch-, and chlorine-resistant components
• Liquid-tight compression fittings
• Multiple wire-entry locations
• Stainless steel fasteners
• Weatherproof stainless steel grille
• Anti-theft bracket included
• Granite green and sandstone color options

SoundTube XT850 Specifications

Included Accessories

• Anti-theft bracket
• Weatherproof strain relief
• Wire nuts

Optional Accessories

• ATD-XT – Anti-Theft Bracket
• GRL-XT8 – Replacement Grille
• CVR-XT-TAPSW – Tap Switch Cover

Typical Applications

• Landscape audio systems
• Hotels and resorts
• Restaurant patios
• Outdoor dining areas
• Parks and public spaces
• Pool and recreation areas
• Gardens and landscaped properties
• Commercial outdoor spaces
• Theme and entertainment venues
• Outdoor retail areas
• Residential landscape audio
• Foreground and background music
• Outdoor paging systems

Need a More Compact Outdoor Speaker?

Need a more compact in-ground outdoor speaker? See the SoundTube XT550 5.25-Inch In-Ground Outdoor Speaker for a smaller landscape speaker with 360° BroadBeam coverage and 25V/70.7V/100V or 4Ω operation.

Why Choose the SoundTube XT850?

The SoundTube XT850 combines an 8-inch woofer, 100W continuous power handling, 38 Hz low-frequency extension, and 360° BroadBeam coverage in an in-ground enclosure designed for permanent outdoor sound systems.

Its support for 25V, 70.7V, 100V, and 4Ω direct operation allows it to work in a range of commercial and residential audio system designs, while its IP55-rated construction and outdoor-resistant components are designed for long-term landscape installations.

Why Buy the SoundTube XT850 from Audio Supply?

Audio Supply supplies SoundTube commercial loudspeakers and professional audio equipment for indoor and outdoor distributed sound systems.

Our team can help you compare SoundTube outdoor speaker sizes, amplifier requirements, distributed audio configurations, and installation accessories for your application.