Lowell Manufacturing LUH-15TA 15W Universal Mount Unihorn for General Signaling

SKU: LWLUH15TA MFR: LUH15TA
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Key Features

  • Experience superior sound quality with this 15W universal mount unihorn loudspeaker.
  • Ensure clear audio in any environment with the LUH-15TA's durable construction.
  • Easily install this horn loudspeaker with included mounting aids for quick setup.
  • Get exceptional audio coverage with a wide conical dispersion angle at 2kHz.
  • Enjoy versatile connectivity with selectable 25V, 70V, and 100V transformer taps.
  • This aesthetically pleasing loudspeaker seamlessly blends into any setting.
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Special Order?Estimated to Ship: 08/20/2025
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Lowell Manufacturing LUH15TA Specifications

Performance

Performance

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  • Power Rating

    15 watts RMS (measured per EIA Standard RS 426-B)

  • Frequency Response

    740Hz-7.4kHz (+6dB)

  • Sensitivity

    105dB 1W/1M (using 70V inputs)

  • Calculated Maximum SPL

    116.8dB 15W/1M (based on power rating and measured sensitivity)

  • 8ohm Input Impedance

    Nominal 8 ohms, minimum 7.7 ohms @ 2343 Hz (8 ohm input terminals)

  • Transformer Input Impedance

    5000, 2500, 1300, 666, 333, 133, 89, 45 ohms (nominal)

  • Transformer Power Taps

    25V @ .13, .25, .50, 1.0, 1.9, 4.7, 7.5, 15W
    70V @ 1.0, 2.0, 3.8, 7.5, 15W
    100V @ 2.0, 4.0, 7.5, 15W

  • Voltage Input

    25V, 70V, 100V selectable taps

  • Conical Dispersion Angle

    80 Degree conical @2kHz octave (-6dB)

  • Operating Temperature

    The LUH-15TA has met or exceeded the requirements of the UL1480A "Low Temperature Test" and "High Temperature Test" and so is capable of operating within an ambient temperature range of -40 Degree F (-40 Degree C) to 151 Degree F (66 Degree C)

Compliance & Certification

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  • Compliance & Certification

    UL1480A general signaling (USA)
    UL2043 suitable for use in return air plenum space (USA)
    CSA C22.2 No. 205-12 general signaling (Canada)

Physical

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  • Materials

    Cast aluminum trim ring and housing (gasketed rear cover), perforated aluminum grille

  • Mounting Bolt Circle

    7.625" (194mm) with 4 holes spaced to mount an E.I.A. 8" speaker grille

  • Cutout Diameter

    7.25" (184mm)

  • Installed Depth

    3.3"

  • Mounting Projection

    0.77"

  • Housing Diameter

    7.1"

  • Required Hole Diameter

    7.25"

  • Dimensions

    Housing: 7.1 x 8 x 3.72" (180 x 203 x 94mm)
    Horn, trim ring & grille: 7.1 x 9.6 x 3.3 x 0.77" (180 x 244 x 84 x 19mm)

  • Weight

    4.9 lbs (2.22kg)

About Lowell Manufacturing LUH15TA

Bring clarity and efficiency to your communication systems with the LUH-15TA 15W Universal Mount Unihorn by Lowell Manufacturing. This high-quality, durable unihorn is designed for paging and general voice communications, compatible with 25V, 70V, 100V, and 8ohm systems.

Engineered with a weather-resistant aluminum housing, this stylish and reliable unihorn is ready for installation in a variety of environments, from brick and concrete block to plaster, drywall, or acoustic tile. Its versatile design allows for both indoor and outdoor use, making it an ideal choice for new installations or retrofit applications.

The LUH-15TA model features a self-contained compression driver, designed to fit seamlessly into 4-inch deep spaces. With a continuous power rating of 15 watts and a frequency response of 740Hz-7.4kHz (+/-6dB), this unihorn delivers clear, audible signals for a range of applications, including security systems, fire alarms, and other emergency alerts.

The sound pressure level of this unihorn reaches an average of 105dB (1W1M), with a maximum of 116.8dB SPL (15W/1M), ensuring your signals are heard loud and clear. The dispersion is 80 degrees conical @2000Hz (-6dB), providing broad coverage for your signaling needs.

The LUH-15TA comes with a 100/70/25V transformer, with taps selectable on both the front and rear of the horn, and includes an 8ohm transformer bypass input. The unit is ready to ship for standard two-wire connection, with the cable exiting through a rear waterproof gland-type connector.

The housing measures 7.1 inches in diameter at its widest, with an 8-inch diameter flat face. The assembly includes an aluminum trim ring/grille measuring 9.6 inches in diameter, offering a sleek, hardware-free look with a neutral gray finish.

Mounting is made easy with three screwdriver-activated clamps, adjustable for depths of 0 to 1.5 inches (factory setting) or 1 to 2.125 inches (when dog ear clamps are reversed). Alternatively, it can be mounted using screws (not included).

Choose the LUH-15TA 15W Universal Mount Unihorn for a versatile, efficient, and reliable solution to your general signaling needs.

Lowell Manufacturing LUH15TA Features

  • 15W compression driver
  • 25V/70V/100V transformer with screwdriver-adjustable tap selector switch in front and rear (8 ohm bypass)
  • Self-contained cast aluminum housing with moisture-seal cover
  • Contoured aluminum trim ring
  • Fine perforation press-fit aluminum grille fits snugly for a hardware-free appearance, while helping to protect the front of the horn from nesting birds and insects
  • Network Gray powder epoxy finish
  • Provides clear intelligibility with high SPL output over the extended vocal range

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Experience superior sound quality with this 15W universal mount unihorn loudspeaker.
  • Ensure clear audio in any environment with the LUH-15TA's durable construction.
  • Easily install this horn loudspeaker with included mounting aids for quick setup.
  • Get exceptional audio coverage with a wide conical dispersion angle at 2kHz.
  • Enjoy versatile connectivity with selectable 25V, 70V, and 100V transformer taps.
  • This aesthetically pleasing loudspeaker seamlessly blends into any setting.

What's in the box:

  • Lowell Manufacturing LUH-15TA 15W Universal Mount Unihorn
  • Press-Fit Grille
  • Enclosure
  • Mounting Aids
  • 100/70/25V Transformer with Taps
  • Lowell Manufacturing 1 Year Limited Warranty