Compact 2 x 12" (305 mm) configuration designed to provide bass augmentation for Bose® LT arrays and other subwoofer applications. Allows minimal-height arrays when used with LT mid/high loudspeakers.
MB24 for indoor applications only.
MB24 WR for indoor and outdoor applications.
No. Acoustic performance remains unchanged.
The LT WR loudspeakers are rated to the IEC 529 IPX5 rating. The IP rating classification uses two digits: The first signifies resistance to the ingress of solid objects, and the second signifies resistance to the ingress of water. Bose has not specified a rating for resistance to solid object ingress. This practice is common for loudspeaker ratings, as the primary concern for outdoor loudspeakers is water penetration. Thus, the first digit is specified as “X” in our rating. The second digit—“5” in our rating—signifies resistance to “light-pressure water jets,” which is the test used to simulate exposure to severe wind-driven rain conditions.
The open-cell foam behind the stainless steel grille provides excellent protection from wind-driven rain and dust. Several manufacturers signify resistance to dust with a “5” rating in first-digit, solid object IP rating. Technically, an enclosure must provide protection from a solid-object wire of 1 millimeter (0.03937 inches) in diameter, in addition to protection against dust, to qualify for the “5” solid-object IP rating. As the grille perforations of the LT product family loudspeakers will not protect against ingress of solid objects of 1 mm, we have elected not to specify the first digit for the IP rating. However, we are confident that the WR models will provide adequate protection against wind-driven dust and rain.
Loudspeakers in the LT product family undergo extensive quality assurance and reliability testing. They are tested for normal operation at temperatures ranging from 70° C to -20° C (158 ºF to -13 ºF), and for transportation and storage to survive temperatures ranging from 70° C to -40° C (158 ºF to -40 ºF).
We do not recommend outdoor installations near marine (ocean) environments due to the corrosive nature of seawater spray and humidity. Although conditions vary greatly, typically the recommendation would extend to within approximately ½ mile (0.8 km) of the oceanfront.
No. However, we have developed recommendations for rigging several typical array configurations (indoor applications only) using stock parts manufactured and distributed by ATM Fly-ware, a division of Adaptive Technologies Group, Inc. These recommendations can be found in the array application guide for the Bose LT loudspeakers. Qualified contractors and dealers may purchase rigging hardware directly from ATM:
Adaptive Technologies Group
1635 E. Burnett Street
Signal Hill, CA 90755 USA
No. The recommended EQ and crossover settings are unchanged compared to the Series III versions.
The Bose ControlSpace ESP-88 engineered sound processor has presets for the LT product family. You may also download recommended crossover and parametric EQ values for use with DSP units not manufactured by Bose. Please refer to the ControlSpace loudspeaker EQ database for the recommended EQ download.
The factory warranty for all Bose professional loudspeakers includes coverage for 5 years on acoustic components and 2 years for cosmetic defects. Some exclusions may apply. Please refer to the product warranty for complete warranty terms and conditions.
Yes, loudspeakers in the LT product family can be painted by the contractor using solvent-based spray paint, including many formulations from the KRYLON brand. Several precautions must be taken before painting the enclosures, such as removing the grille and foam backing. For additional details on re-painting LT loudspeakers, please contact your local Bose Professional representative.
Certain LT loudspeakers are not stocked in regular inventory and are available only as special-order items. Please contact your local Bose Professional representative to confirm order-to-shipping lead times for the following models:
|323102-0110||3202® LOUDSPEAKER, WR BLK||Weather-rated|
|40183||LT9403 WHITE ROHS||Indoor only|
|40181||LT6403 WHITE ROHS||Indoor only|
|40187||LT9400MH WHITE ROHS||Indoor only|
|40185||LT6400MH WHITE ROHS||Indoor only|