Lowell Manufacturing OS-150T Indoor/Outdoor Ceiling Speaker, 150W RMS, 8" Woofer, White, Single

SKU: LWOS150TW MFR: OS-150TW
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Key Features

  • Experience superior audio with this 150W RMS commercial speaker, perfect for any setting.
  • This indoor/outdoor speaker delivers crystal-clear sound with an 8" polymer-coated woofer.
  • Achieve optimal sound dispersion with the 80-degree conical coverage of this speaker.
  • Enjoy flexible installation with the included adjustable U-bracket for on-wall placement.
  • The white, fine-mesh aluminum grille adds a sleek, modern aesthetic to any environment.
  • Easily connect using screw terminals, supporting up to 12-gauge stranded conductors.
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Special Order?Estimated to Ship: 09/06/2025
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Lowell Manufacturing OS-150T Specifications

Performance

Performance

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  • Power Handling

    150 watts RMS measured per EIA Standard RS-426B at 8 ohms

  • Sensitivity

    91.0 dB SPL (avg) measured 1 Watt at 1 Meter

  • Frequency Response

    65Hz-20kHz (+6dB)

  • Impedance

    8 ohms (nominal), 8.6 ohms at 274 Hz (minimum)

  • Dispersion (Grille On)

    80 degrees conical at 2kHz octave (-6dB). This measurement is used for comparison with other speakers.

  • Woofer

    8" polymer coated paper composite cone with cloth surround

  • HF Compression Driver

    Titanium diaphragm with one inch voice coil and ferrite magnet

Cabinet

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  • Cabinet Housing

    Molded plastic, white

  • Cabinet Grille

    Fine mesh aluminum, white

  • U-Bracket

    Aluminum, white

  • Input Terminals

    Screw terminals capable of attaching two 12-gauge stranded conductors

General

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  • Transformer

    Tap: A
    25V Line: 7.5W
    70V Line: 60W
    100V Line: Do not use

    Tap: B
    25V Line: 3.8W
    70V Line: 30W
    100V Line: 60W

    Tap: C
    25V Line: 1.9W
    70V Line: 15W
    100V Line: 30W

    Tap: D
    25V Line: 0.94W
    70V Line: 7.5W
    100V Line: 15W

    Tap: E
    25V line: 0.48W
    70V line: 3.8W
    100V line: 7.5W

  • Dimensions (HxWxD)

    With Bracket: 16.3 x 9 x 10" (41.40 x 22.86 x 25.40cm)
    Without Bracket: 16 x 9 x 8.3" (40.64 x 22.86 x 21.08cm)

  • Weight

    18 lbs (8.16kg)

About Lowell Manufacturing OS-150T

Under the banner of Lowell Manufacturing's commitment to excellence, the OS-150T Indoor/Outdoor Ceiling Speaker emerges as a paragon of audio engineering, tailored for those who demand both aesthetic elegance and acoustic precision. This speaker is a testament to the brand's dedication to creating durable, high-quality sound solutions that seamlessly blend into any environment.

Crafted with a robust 8-inch polymer-coated paper composite cone and a cloth surround, the OS-150T is engineered to deliver a rich and full-bodied sound experience. Its meticulous design ensures a consistent frequency response ranging from 65Hz to 20kHz (+/-6dB), while maintaining an average sensitivity of 91.0dB at 8 ohms (1W/1M). This makes the speaker an efficient choice for a variety of audio setups, providing clear and powerful sound across a wide spectrum.

The speaker's high-frequency dispersion is expertly managed by a horn-loaded compression driver, making it an ideal choice for applications that require controlled sound patterns, such as longer throws or environments with live microphones. Whether it's for commercial, professional, or residential venues, the OS-150T stands out with its stylish white molded plastic housing and fine mesh aluminum grille that is not only weather-resistant but also UV-resistant, ensuring longevity and reliability.

The speaker's versatility is further enhanced by its ability to perform in both indoor and outdoor settings, thanks to its weather-resistant terminal cover and UV-resistant polypropylene enclosure, which is also paintable to match any decor. The included adjustable U-bracket, factory-mounted for expedient surface installation, allows for horizontal or vertical placement, with the capability to rotate the speaker 90 degrees to suit the installation orientation.

For those seeking a seamless integration into their existing audio systems, the OS-150T comes equipped with an input selector switch that allows for a straightforward transition between direct 8-ohm 150W power and distributed 25V, 70V, or 100V operation. The rear cover plate ensures that connections remain protected against the elements, with a weather-resistant terminal cover and rubber grommet to accommodate larger wire sizes, as well as a knockout for 0.5-inch conduit connections.

In summary, the OS-150T Indoor/Outdoor Ceiling Speaker is a stylish, reliable, and efficient choice for anyone looking to enhance their audio experience with a speaker that promises durability and high-quality performance. With its 80 degrees conical dispersion and the ability to withstand the rigors of both indoor and outdoor use, this speaker is a versatile and sophisticated addition to any audio setup.

Lowell Manufacturing OS-150T Features

  • High-quality indoor/outdoor ceiling speaker with robust 8-inch polymer-coated paper composite cone
  • Engineered for controlled sound pattern applications with a horn-loaded compression driver
  • Durable and stylish with white molded plastic housing and weather-resistant, UV-resistant fine mesh aluminum grille
  • Versatile mounting options, including a factory-mounted adjustable U-bracket for horizontal or vertical installation
  • Seamless integration into existing audio systems with an input selector switch for direct 8-ohm 150W power or distributed 25V, 70V, or 100V operation
  • Connections protected by a weather-resistant terminal cover and rubber grommet, with a knockout for 0.5-inch conduit connections

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Experience superior audio with this 150W RMS commercial speaker, perfect for any setting.
  • This indoor/outdoor speaker delivers crystal-clear sound with an 8" polymer-coated woofer.
  • Achieve optimal sound dispersion with the 80-degree conical coverage of this speaker.
  • Enjoy flexible installation with the included adjustable U-bracket for on-wall placement.
  • The white, fine-mesh aluminum grille adds a sleek, modern aesthetic to any environment.
  • Easily connect using screw terminals, supporting up to 12-gauge stranded conductors.

What's in the box:

  • Lowell Manufacturing OS-150T Indoor/Outdoor Ceiling Speaker with Enclosure and Grille
  • Adjustable U-Bracket
  • Lowell Manufacturing 1 Year Limited Warranty