This year, around $1700. I've been through about 11 different sub and amp setups in which I recoup most of my money on the resale and put it back in.
Since I started back in the mid 90s......close to $15,000 if I had to guess //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif