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Lowell OS50TW
White 50W OS Indoor/Outdoor Speaker System


Lowell Models OS50TB (black) and OS50TW (white) are attractively styled, 50W two-way music speakers that provide excellent sound reproduction at 8-ohms, 25V, 70V or 100V.
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Lowell OS50TW
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Lowell Models OS50TB (black) and OS50TW (white) are attractively styled, 50W two-way music speakers that provide excellent sound reproduction at 8-ohms, 25V, 70V or 100V. They are engineered for indoor or protected outdoor use in upscale retail, restaurant, commercial, professional, educational or residential applications. OS50T Series features an architecturally curved plastic housing with a weather resistant terminal cover, fine mesh grille and U-shaped mounting bracket. Both the grille and bracket are made of aluminum for long lasting quality appearance. Lowell also offers OS100 Series 100W two-way speakers to meet applications with higher output requirements.

The two-way speaker features a 5.25" polypropylene coated woofer with a rubber surround for weather resistance. The tweeter is a 1/2" PEI driver for clear frequency reproduction. Power rating is 50 watts with a frequency response of 104Hz-17.3kHz + 6dB and average sensitivity of 85.2dB measured 1W1M. Each speaker measures 9.10"H x 7.01"W x 6.01"D (with bracket). The assembly weighs 4.9 pounds and is packaged one per box. Connections are made using stranded wire up to 14 gauge to a removable 4-conductor Phoenix connector. The connector is protected by a weather-resistant terminal cover and rubber grommet which may be removed when larger wire sizes are used. The rear of the speaker features an 8-ohm / transformer selector switch. The switch is adjusted using a screwdriver to select 8- ohm (no transformer), 70V, 25V or 100V tap positions.

The U-bracket is factory installed to the speaker with two (2) threaded screw handles and provides for 180O horizontal or vertical rotation. The bracket is equipped with slots for easy installation to a single gang E.O. Box. Note: To facilitate other types of brackets, the rear of the speaker housing includes 1/4" - 20 threaded mounting points Optional brackets that mount to the 1/4" - 20 mounting points include omni-directional bracket Model OS-BRKT-B (black) or Model OS-BRKT-W (white) - order separately from Lowell or OmniMount┬« Series 20.5 brackets - order from others. 

Features and Specifications:

  • Compact speaker assembly with 50W power rating meets specifications for high quality indoor and outdoor music applications.
  • Features a 5.25" polypropylene coated woofer with rubber suround and a 1/2" PEI tweeter for accurate sound reproduction.
  • Curved housing is molded plastic with a weather-resistant terminal cover and an attractive fine mesh aluminum grille.
  • Selector switch allows for direct 8-ohm or distributed 70V, 25V or 100V distributed system operation.
  • Adjustable U-bracket provides easy surface installation to a single gang E.O. box.
  • OS Series will also accept other bracket styles including omnidirectional bracket Series OS-BRKT (order separately from Lowell) or OmniMount┬« Series 20.5 (order from others).


General Questions


Can I return a service part once it has been installed?


Installed service parts are non returnable, unless they are defective. All defective returns are exchange only - no money will be refunded.

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