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The Polk Audio db401 are a pair of 4” coaxial car-audio loudspeakers composed out of dynamic balance polymer/mica composites.

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The Polk Audio db401 are a pair of 4” coaxial car-audio loudspeakers composed out of dynamic balance polymer/mica composites. An upgrade from the db351, the db401 features a larger woofer (4” versus 3.5”), a slightly larger liquid-cooled silk/polymer tweeter (.75” vs .5”), and an increased MSRP of $79.95. Furthermore, the db351 sports what is considered a more sleek db-design grill, as well as flexible woven leads sewn directly into the Spider wires. In addition, the Audio db401 utilizes a pole plate heat sink to promote higher quality dissipation, thereby allowing an increased power handling of 135w. Cited as having superior looks and even better sound, the Polk Audio db401 is considered a high-quality car-audio purchase at an affordable price.

Features
  • Mid/Woofer: 4" Diameter (10.16cm) Polymer/Mica composite cone
  • Tweeter: 3/4" Diameter (1.91cm) Silk/Polymer composite dome
  • Overall Frequency Response: 85Hz-22kHz
  • Nominal Impedance: 4ohms
  • Power Handling (continuous): 45w
  • Power Handling (peak): 135w
  • Efficiency: 91dB
  • Bottom Mount: 1-15/16” (4.92cm)
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