I don't know what the specs are, but they sounded good to me so I'm willing to give them a try. Obviously, I haven't heard them in the car at speed with the roof down yet, and I might quite possibly find they don't cut it - if so, I'll try and find a place for my HEX 10". I'm not going to sell the HEX until the Focal's have passsed the V8 audition! I know what you're saying, but for the space and placement flexibility the Focal's offer I might be willing to lose a bit of low end. Anyway, I should know the answer in a few weeks! If these do the job, a whole legion of MGB owners now have NO exuse for crappy sound! :o)