Polk Audio DB840 8" 360 Watt Subwoofer

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  • $0.00
  • Weight
    6.7 lbs
  • SKU
    4315
  • UPC/ISBN
    747192113766


Diameter 8inch (20.32cm)

Type Dynamic Balance woofer polymer composite cone

Total Frequency Response 30-200 Hz

Nominal Impedance 4 ohms

Efficiency 85 dB

Continuous 180 watts

Peak 360 watts

Driver Diameter 1 1/2inch (3.81cm)

Resonant Frequency 49 Hz

Xmax Linear .51 inch/13mm (peak to peak)

MMS 67g

BL 10.3 Tesla Meters

CMS 157.6 Micro Meters

Recommended Enclosure Sealed/Ported/Bandpass

SD 35.65 sq in/230 sq cm

VAS .42 cubic feet/11.9 L

QTS .6

QES .6

QMS 14.1

Cut-Out Diameter 7 1/18inch (18.10cm)

Top Mount 4 1/16inch (10.32cm)

Bottom Mount 4 1/2inch (11.43cm)

Marine Certified

Brand NEW

  • Model
    DB840
  • Manufacturer
    Polk
  • UPC
    747192113766
  • Subwoofers
    • Size
      8
    • Max Watts
      360
    • RMS Watts
      180
    • Impedance
      Single 4 ohm
    • Frequency Response Min
      30 Hz
    • Mounting Depth (inches)
      4.0625