I hate to say it, but.... ....I own a Hartke Transporter Series 4x10. While I love the sound of Hartke overall, if I knew what I know now, I would've bought the professional series. I went and played through a Professional series that made my Transporter sound like a little b**ch!! Please, take my advise. My only major complaint is frequency range. I like to play with alot of bass boost, and it kind of distorts at moderate volumes. And I'm only pushing 80 wts..