Not to be a nudge, but I put Focal Utopia's in my Range Rover in 2000! They've been around a bit longer than 10 years, but Even current Utopia M models, the tweets are pretty harsh. I'm not really sure why they can't fix that.
So, I cut them all off except the rear most resonator. It sounded like hot garbage. Fart can with attitude. I did a combo of flow master mufflers and even tossed in a glass pack between the resonator, just trying. No. Just no.