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MartinLogan Outdoor Living Foundation 8.1 System

Eight weather-resistant stake-mount speakers and in-ground subwoofer

Item # 839ODFS81S

This weather-resistant speaker system delivers immersive sound and deep bass for outdoor spaces up to 3,000 feet.

This weather-resistant speaker system delivers immersive sound and deep bass for outdoor spaces up to 3,000 feet.

Item # 839ODFS81S

In stock
$2,799.99 each

Since 1974

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About the MartinLogan Outdoor Living Foundation 8.1 System

A rugged speaker system for large outdoor spaces

The MartinLogan Outdoor Living Foundation 8.1 System is versatile and weather-resistant — ideal for creating an immersive sound system for a large pool or patio (up to 3,000 feet). The system includes eight hardy satellite speakers that can be stake-mounted in the soil, plus a burial-rated 8" subwoofer for deep, musical bass.

A rugged speaker system for large outdoor spaces

The MartinLogan Outdoor Living Foundation 8.1 System is versatile and weather-resistant — ideal for creating an immersive sound system for a large pool or patio (up to 3,000 feet). The system includes eight hardy satellite speakers that can be stake-mounted in the soil, plus a burial-rated 8" subwoofer for deep, musical bass.

A standard two-channel amplifier can power the speakers in a stereo system at 8 ohms, or a mono system at 4 ohms. Wiring diagrams for setting up each type of system are included. You can also contact a Crutchfield A/V system designer for solid (and free) advice on how to set up your outdoor sound system.

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Product highlights:

  • speaker system for large outdoor spaces (up to 3,000 feet)
  • 8.1 system includes eight stake-mount bullet speakers and in-ground subwoofer
  • system warranty: 3 years
  • Our 60-day money-back guarantee
Satellite speakers:
  • 3/4" ferrofluid-cooled X-PAL™ dome tweeter
  • 4" mineral-filled polypropylene cone mid/bass driver
  • frequency response: 100-20,000 Hz (±4dB)
  • power handling: 15-400 watts
  • sensitivity: 76 dB
  • minimum impedance: 4 ohms (mono)
  • IP54-rated dust- and moisture-resistant
  • 5-3/8" diameter x 8-3/4" height
  • weight: 3 lbs. each
Subwoofer:
  • 8" woofer with dual 8-ohm voice coils
  • frequency response: 47-170 Hz (±4dB)
  • power handling: up to 400 watts
  • sensitivity: 89 dB
  • minimum impedance: 4 ohms (mono)
  • IP58-rated dust-resistant and waterproof
  • 13-13/16" diameter x 22" height
  • weight: 17.7 lbs.
  • MFR # ODFS81SYS

What's in the box:

  • 8" In-ground subwoofer w/ attached 3.5' 4-conductor wire
  • 8 Outdoor satellite speakers w/ attached 3.5' 2-conductor wire
  • 8 Ground stakes
  • 20 Silicon-filled wire nuts
  • User manual (English & French)

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More details on the MartinLogan Outdoor Living Foundation 8.1 System

Stacey B.

Features & specs

Enclosure Sealed
Tweeter Type Dome
Tweeter Size (inches) 0.75
Midrange Size (inches) N/A
Woofer Size (inches) 4
Woofer Composition Polypropylene
Woofer Surround Nitrile-Butadiene rubber
Power Range (watts) 15-400
Sensitivity 76 & 89 dB
Impedance (ohms) 32
Frequency Response 47Hz-20k Hz
Connector Type Bare wire
Height (inches) ---
Width (inches) ---
Depth (inches) ---
Weight (pounds) 3 & 17.7
Wall-mountable No
Bracket Included N/A
Parts Warranty 3 Years
Labor Warranty 3 Years

Product Research

Features

Outdoor Speaker System: The MartinLogan Outdoor Living Foundation 8.1 System lets you add rich, clear audio to your outdoor living or entertainment space while blending in with the landscape. The system includes an 8" in-ground subwoofer and 8 satellite speakers, letting you evenly distribute sound throughout the area without having to disturb your neighbors. The Outdoor Living Foundation 8.1 System is ideal for outdoor spaces up to 3,600 sq. ft.

Satellite Speakers: The Outdoor Living Foundation 8.1 System includes 8 satellite speakers, each with their own 12" ground stake. The 2-way satellite speakers are comprised of a 4" midrange/bass driver, that features a mineral-filled polypropylene cone with a Nitrile-Butadiene rubber surround, and a 3/4" X-Pal, ferro-fluid cooled dome tweeter. The tweeters feature a Perforated Phase-Aligning (PPA) tweeter lens and a die-cast low-diffraction baffle/heat sink. The satellite speakers carry an IP54 weather-proof rating.

Subwoofer: The outdoor speaker system includes an in-ground subwoofer that features an 8" driver with dual 8-ohm voice coils. The water-resistant driver is housed in a durable HDPE (High Density Polyethylene) enclosure designed for partial-burial. The top of the enclosure features a "mushroom cap" hood that protects the speaker from the elements while evenly distributing bass. The hood opening is protected by a mesh screen that keeps insects and small animals out while providing a constant flow of air around the driver. The outdoor subwoofer carries an IP58 weather-proof rating.

Power & Configuration: The subwoofer and satellite speakers each feature a built-in 3.5' section of rubberized speaker wire that's designed for direct burial applications (additional speaker wire sold separately). The subwoofer includes 2 sets of attached speaker wire, one for each 8-ohm voice coil, allowing it to be wired in a stereo or mono configuration. Each satellite speaker presents a 32-ohm load individually. Both feature optimized internal crossovers so that the subwoofer's impedance is not combined with the satellites. An amplifier with 15-400 watts per channel is recommended for powering the 8.1 sound system.

  • Stereo Configuration: The subwoofer and satellites can be configured for stereo operation with a stereo amplifier (sold separately). Four satellites and one of the subwoofer's inputs can be parallel-wired to each channel of the amp for an 8-ohm stereo connection. 4-Conductor, direct-burial speaker wire (sold separately) is recommended for a stereo configuration.
  • Mono Configuration: The speaker system can be powered from a single mono amplifier channel by combining the two subwoofer inputs along with the eight satellite speakers, presenting a 4-ohm load at the amplifier. 2-Conductor, direct-burial speaker wire (sold separately) is recommended for a mono configuration.

Recommended Wire Gauge & Length: Burial-rated speaker wire (sold separately) should be used for installing the MartinLogan speaker system. 20 Silicon-filled wire nuts are included for a secure and water-tight connection. Recommended gauge and length include:

Wire Gauge Length
18-Gauge Up to 100'
16-Gauge Up to 150'
14-Gauge Up to 200'
12-Gauge Up to 400'

Subwoofer Dimensions:

  • Total Height: 23.50" (including wiring)
  • Main Body Height: 17.50" (including wiring)
  • Cap Height: 6.0"
  • Body Diameter: 10.25"
  • Cap Diameter: 14.63"
  • Wire Length: 3.50'
  • Weight: 17.7 lbs.

Satellite Dimensions:

  • Height (w/ground stake): 19.38"
  • Depth: 9.63"
  • Diameter: 5.32"
  • Ground Stake Height: 12.0"
  • Ground Stake Diameter: 1.20"
  • Wire Length: 3.50'
  • Weight: 3 lbs.

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