I have up for sale or trade is a like new Boston G510 sub that is dual 4 ohm. I have only had it for a month. I also have the tunable rad. to go with it and it has never been used!! Would be willing to trade for another 10 that it is pretty close in value, but it has to be a ten or something I can't pass up. As for price just post some reasonable offers, brand new from Crutchfield everything together retails for $450 I am not looking for that much I just wanted to let you know that this is some high quality goods, but you probably already know that if you are looking at this post!! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif