Description

Sundown Audio U Series 18″ v.2 1750 RMS

Product Description

• Features (U-10 / 12 / 15 / 18)

  • Black Aluminum 3″ voice coil former for superior heat dissipation
  • High Temperature Round-Wire CCAW voice coil with high-temp black adhesive
  • Double stitched surround
  • Heavy duty cast basket
  • Spring loaded terminals accept up to 8 gauge
  • Stitched-on double-XL tinsel leads
  • Rear vented pole piece
  • Rear drilled gap-venting
  • Innovative high-velocity cast aluminum vented frame spacer ring
  • Magnet ID shorting ring
  • Top-Plate Cooling Channels
  • Cast Aluminum surround bolt-on rings
  • Optimized for small ported or bandpass enclosures

   

  U-18

  T/S SPECS	U 18″ D2	U 18″ D4
  RE (Ohms)	3.8	6.1
  FS (Hz)	31.3	31.4
  VAS (L)	135.4	135.4
  Qes	0.37	0.42
  Qms	3.41	3.55
  Qts	0.33	0.38
  Le (mH)	2.62	3.97
  BL (NA)	29.9	35.3
  Mms (Grams)	444.1	441.3
  Cms (uM/N)	0.06	0.06
  Sens (dB @ 1w/1m)	92.3db	91.8db

  U-15

  Sealed Enclosure	2.0 cu ft
  Ported Enclosure	3.0 cu ft
  Recommended Tuning	35Hz
  Recommended Port Area	48 sq in
  Displacement	0.24 cu ft
  Depth	9.05″
  Outside Diameter	15.59″
  Cut-Out	14.01″
  Physical Dimensions	Download