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Alpine :: SWR-1521D :: $219.00

Alpine SWR-1521D

Item# 12077

15" 1500W Dual 2-Ohm Subwoofer

Sorry, this product is no longer available.

  • Kevlar®-infused pulp cone
  • 1-1/4" Santoprene rubber surround
  • Dual 2-ohm voic coils (make sure your amplifier is compatible)
  • Frequency response 22-1,000 Hz
  • Power range 200-500 watts RMS (250 watts RMS per coil)
  • Peak power handling 1,500 watts
  • Sensitivity 89 dB
  • Top-mount depth 8-3/4"
  • Sealed box volume: 1.3-2.5 cubic feet
  • Ported box volume: 1.5-3.0 cubic feet
  • Priced per speaker
  • Subwoofers are usually sold as a single unit unless otherwise noted.
*Warranty: 1 Year warranty.
1 Year warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.

Do you own this product?  Write a review

   Big From Lebanon
Hooked it up to an Alpine F1 CDA-7990 with the big MRV-F1507 amplifier with +4dB at 40Hz and Q=1 in a 1.5 ft3 sealed enclosure. Although I have some of the best equipment on the market running it, I wasn't very impressed with sound quality. However, it has good response time and pretty loud and clean sound reproduction; top that with an excellent price-quality ratio => A great buy!

   Biggins From Mid Atlantic
I'm running one of these in a sealed 1.3 ft3 box (with RF 550S amp) in a mid size sedan and I have no problem hitting 140dB at the dash (Epic 150). And that's with the sunroof open. Appears to be built to last. It does take a while to break in (I have 50+ hours on it and its still going). It also has the clarity and tightness of a 10 inch. Overall I am very happy with this sub.