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Lowell JR410-T470
15-Watt 4" High Compliance Driver with 10oz. Magnet

OUR PART #:  JR410-T470

Lowell high compliance Model JR410 is a commercial industry standard 4" (EIA 5") speaker. Model JR410 features a 10oz magnet for high power handling and sensitivity.
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Lowell JR410-T470
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Lowell high compliance Model JR410 is a commercial industry standard 4" (EIA 5") speaker. Model JR410 features a 10oz magnet for high power handling and sensitivity. It also includes a 1" copper voice coil, plated steel basket, and high compliance treated cloth surround. It is specifically engineered to provide wide frequency response and wide dispersion for solid performance in both paging and background music systems. The driver's small size and broad beamwidth of 170 degrees make it especially useful in rooms with low ceilings. For versatile application, the speaker is available with a selection of factory wired 70V or dual voltage 70/25V transformers and will fit all standard 4" ceiling grilles and backboxes. Lowell Model JR410 provides wide and even coverage for paging and background music with the advantage of using smaller and fewer speakers. It is often specified for reliable performance in commercial, industrial, and institutional applications including offices, public buildings, airport corridors, educational and medical facilities. The loudspeaker frame is stamped 20 gauge steel with a zinc plated finish to prevent corrosion. Models with factorywired transformer feature the transformer mounted directly to the top of the magnet.

Specifications:

Performance

  • Power Handling:  15 watts RMS (nominal ) measured per EIA Standard RS-426B
  • Sensitivity:  97dB SPL (peak), 91dB SPL (avg) measured 2.83V @ 1m
  • Impedance:  8 ohms (nominal), 100Hz-14kHz
  • Dispersion Angle:  170 degrees @ 2000Hz octave (-6dB)

Physical - Woofer

  • Magnet Weight, Material:  10oz. (264g), strontium ferrite caramic
  • Voice Coil Diameter, Material:  1 inch (26mm), copper wire
  • Cone Material:  Paper with treated cloth surround
  • Terminals:  Quick disconnect type - spade lugs

Mechanical

  • Basket:  20 gauge stamped steel with zinc plating
  • Outside Diameter:  5.03 inch (128mm)
  • Mounting Bolt Circle:  4.72 inch (120mm) with 4 round holes equally spaced at 90 degrees
  • Cutout Diameter:  4.125 inch (53mm)
  • Net Weight:  1.7 lbs. (0.76kg)

Factory-Wired Transformer Assemblies

  • Mounted Xfmr:  TLM470
  • 'A' Assembly Depth:  3.71"
  • Assembly Weight:  2.4 lbs
  • Xfmr Power Rating:  4 Watts
  • Xfmr Primary Voltage:  70V
  • Xfmr Primary Taps:  0.5, 1, 2, 4W
  • Xfmr Response:  60Hz - 15kHz+_1db
  • Xfmr Insertion Loss:  0.8db

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