User's Manual

HORN SPECIFICATIONS
ModelNo. LUH-15TAandLUH-15TX
Power Rating (per EIA standard RS 426-B) 15W RMS
Frequency Response 740Hz–704kHz ± 6dB
Sensitivity (using 70V inputs) 105dB 1W/1M
Calculated Max. SPL (based on power rating & measured sensitivity) 116.8dB 15W/1M
Conical Dispersion 80 degrees @ 2kHZ octave
Input Impedance (nominal) 5000, 2500, 1300, 666, 333, 133, 89, 45 ohms
Transformer Power Taps 25V@ .13W, .25W, .50W, 1.0W,1.9W, 4.7W, 7.5W, 15W
70V@ 1.0W, 2.0W, 3.8W, 7.5W, 15W
100V@ 2.0W, 4.0W, 7.5W, 15W
Voltage Input 25V, 70V, or 100V selectable taps
*MeasuredinLowellaudiolab.
**ULmeasuredAweightedreverberantroomsoundpoweroutput.
***3dBincrementratingwithasweepsine-wavesignalsourceatweightSPLmeter.
SELECTOR SWITCH VALUES
PHYSICAL ATTRIBUTES
Outside Dimensions
Horn housing .................7.1 in. (180 mm) dia. housing with 8.0 in. (203 mm) dia. face x 3.72 in. (94 mm) depth
Horn, trim ring, grille ...... 7.1 in. (180 mm) dia. housing with 9.6 in. (244 mm) dia. trim ring/grille x 3.30 in. (84 mm) depth x 0.772 in. (19 mm) proj.
Material .....................Cast aluminum housing with gasketed rear cover; cast aluminum trim ring; perforated aluminum grille
Mounting Bolt Circle ..........7.625 in. (194 mm) with 4 holes spaced to mount an E.I.A. 8 in. speaker grille
Cutout Diameter ................7.25 in. (184 mm)
Weight .....................Model LUH-15TA = 4.9 lbs. (2.22 kg)
..................... Model LUH-15TX = 4.1 lbs. (1.86 kg)
Listed for UL1480A, CSA C22.2 No. 205-
12 General Signaling for outdoor wet use.
UL2043 for use in return air plenum space.
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