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Lowell Manufacturing Co. - 4A30
Lowell Manufacturing Co. - 4A30 Lowell Manufacturing Co. - 4A30 Lowell Manufacturing Co. - 4A30
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4-inch Speaker, 30W Coaxial Driver

Series: 4A30

Model: 4A30

  • Frame: 20-gauge stamped steel with black enamel finish and zinc-plated back-plate.
  • Power Rating: 30W
  • Frequency Response: 81Hz-20kHz (±6dB) and 50Hz-20kHz (±8.1dB) with crossover at 5kHz
  • Mounting Depth: 2.25 in.
  • Mounting Bolt Circle: 4.688 in.
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4 in. (EIA 5 in.) 30W driver has the capacity to deliver a wide angle of sound distribution at 2kHz with uniform response and clear audibility to ensure complete coverage with minimum units. Includes 10 oz. magnet, 1 inch copper voice coil, and polypropylene cone with half-roll rubber surround for long cone travel and good edge damping. Post-mounted liquid-cooled tweeter is 1 in. diameter balanced drive dome with first order high-pass filter.

  • Frame: 20-gauge stamped steel with black enamel finish and zinc-plated back-plate.
  • Power Rating: 30W
  • Frequency Response: 81Hz-20kHz (±6dB) and 50Hz-20kHz (±8.1dB) with crossover at 5kHz
  • Mounting Depth: 2.25 in.
  • Mounting Bolt Circle: 4.688 in.
  • Dispersion Angle: 135 degrees conical
  • Average Sensitivity: 87.8dB
 
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