Summary: Velodyne subwoofers are the elite subwoofers on the market. However, don't buy cheap and you won't be disappointed. I bought this subwoofer to replace a Velodyne DPS 12. As a home theater subwoofer, it does a satisfactory job, but it doesn't compare to the DPS 12. The DPS 12 shook my house off the foundation; the Impact 12 provides the low-end sound, but not the response and earth shattering thump the DPS 12 did.
Summary: are you kidding? Price jumped 20% over night by 5 sellers? Amazon playing games with people's wish list. These are entry level and overpriced to begin with, ordinary off the shelf parts touting the veladyn name. I will buy another subwoffer brand new off ebay. Not the first time items on my amazon list suddenly jumped in price.