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MartinLogan ML-45AW

Outdoor speakers (Black)

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Item # 839ML45AWB

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Our take on the MartinLogan ML-45AW

High-performance outdoor speakers

MartinLogan has produced indoor speakers of legendary quality for decades, so we expect nothing less from this pair of weather-resistant ML-45AW outdoor speakers. Each features a 4-1/2" mineral-filled polypropylene woofer and a 1" titanium tweeter for excellent musical fidelity. They handle up to 100 watts, so you can jam out at your next deck party.

Product Highlights:

  • 1" titanium dome tweeter
  • 4-1/2" polypropylene cone woofer
  • frequency response 90-20,000 Hz (±2dB)
  • fully sealed enclosure for indoor or outdoor use
  • sensitivity: 88 dB
  • handles up to 100 watts
  • impedance: 8 ohms
  • paintable speaker grilles
  • fixed mounting bracket included
  • 5-11/16"W x 7-9/16"H x 6"D
  • weight: 3.4 lbs.
  • warranty: 2 years (with product registration)
  • Our 60-day money-back guarantee

What's in the Box:

  • 2 All-weather loudspeakers
  • 2 Wall-brackets
  • 2 Safety-straps
  • 6 Screws
  • 2 Self-adhesive "MartingLogan" logo decals
  • User's Manual
  • Online Registration Card

Hands-on research

Features and Specs

Enclosure Acoustic Suspension
Tweeter Type Dome
Midrange Size None
Woofer Size 4-1/2
Woofer Composition Mineral-filled polypropylene
Woofer Surround Rubber
Power Range (watts) 15-80
Sensitivity 88 dB
Impedance (ohms) 8
Frequency Response 90-20k Hz
Connector Type Post
Height (inches) 7-11/16
Width (inches) 4-3/4
Depth (inches) 5-15/16
Weight (pounds) 3.4
Mounting Bracket Included Yes
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research


All-Weather Loudspeaker: The MartinLogan Installer Series ML-45AW all-weather loudspeakers are constructed from durable materials to provide years of trouble-free outdoor listening enjoyment (even under extreme weather conditions). The ML-45AW loudspeakers feature a fully-sealed mineral-filled reinforced enclosure that provides protection from harsh weather elements. They also have water & UV-resistant aluminum grilles, stainless steel & polymer mounting brackets, brass hardware, and gold-plated binding posts for superior toughness.

Note: MartinLogan recommends that you not place the ML-45AW loudspeaker in direct sunlight. The ultraviolet (UV) rays from the sun can cause deterioration of speaker cones, etc. For installation of these all-weather speakers MartinLogan recommends as little direct sunlight as your installation will allow.

Two-Way Driver Design: The Installer Series ML-45AW all-weather loudspeakers feature a 1" titanium dome tweeter and a 4.5" mineral-filled polypropylene woofer to ensure great high, midrange, and midbass frequency performance.

Gold-Plated Binding Posts: The ML-45AW speakers are outfitted with gold-plated binding posts that will accept bare wire (up to 10AWG), pin-connectors, spade-lugs, and banana plugs (single only). Use 16AWG speaker wire for wire runs of 15' or less, 14AWG speaker wire for wire runs of 30' or less, and 12AWG speaker wire for wire runs of 30' or less.

Mounting Options: The included mounting brackets allow for installation in locations such as mounted to an exterior wall under a roof soffit (minimizing exposure to sunlight and rain), an exterior wall, in a gazebo, on a deck or railing, etc. The ML-45AW can be mounted horizontally or vertically.

  • Dimensions With Bracket:
    • Vertically: 4.75" (w) x 7.6875" (h) x 5.9375" (d)
    • Horizontally: 7.6875" (w) x 4.75" (h) x 5.9375" (d)
  • Dimensions Without Bracket:
    • Vertically: 4.75" (w) x 7.6875" (h) x 5.5625" (d)
    • Horizontally: 7.6875" (w) x 4.75" (h) x 5.5625" (d)

Placement: Ideally you want to place the speakers far enough apart to achieve stereo imaging, but not so far apart that you are unable to hear both speakers simultaneously in the primary listening area. As a rule of thumb, distance between your speakers should equal 50-75% of the distance from the listening area. For example, if you have a grilling or lounging area 20' away, the speakers should be positioned 10'-15' feet apart.

Installer Series: The Installer Series by MartinLogan is a line of high-performance loudspeakers, featuring custom installation solutions for in-wall, in-ceiling, and outdoor applications. They have been manufactured to MartinLogan's highest standards of quality.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A


Looking for more? Check out the next model in this lineup.

MartinLogan ML-55AW (Black), pr

A larger woofer and greater power handling

The MartinLogan ML-55AW offers these features:

5-1/2" mineral-filled polypropylene cone woofer

handles up to 120 watts

frequency response: 85-20,000 Hz