Looking for a Phoenix gold 10 or 12 for a sealed box build. I've always had a Collins 10" ( 7th order bandpass). After it was stolen, the designer of this box lives nearby and I hounded him to make me one, but he's 80. He did eventually make me an 8" box, same 7th order design, but it only works with this little 150w sub. It hits low like no other, but it's peaky and has nothing over 70 hz. I want to recreate the teeth shattering high bass of my childhood., Achieved by a sealed box? I've been chasing the low - heavy enclosures my whole life and I want to change!