k so the SA1000 's suck ass. thier great and if I were running them through somthing powerful like my amp or I dunno just about anything that's not my computer they'd be the shit I'm sure.. so I'm gunna take em back for the 7506.. it's like it takes more to power the bigger driver in them so they put out less.. really I dunno but the other ones were louder so that's what I'm gunna go with as soon as they open up today.