u/Academic-Lobster-861

I am about to purchase a sub with amp and knob. Specifically Alpine S-DB8V-TRK with the recommended Alpine amp and knob. I located them separately on Amazon through Alpine as the seller for a total of roughly $1,240. I also found a bundle that has all 3 for $700 which was still found from the Alpine seller area of Amazon but Prime Express USA is the shipper. Is it safe to save the money and get the bundle or is it something sketchy.

Any additional questions about specifics I can answer through comments.