Tyler uses Seas, Which i've been prearching here for the past 4 months, ever since i "discovered" the superioity of the Seas Excel drivers. There are many issues with the MTM design. And as well i can find many other offerings with Seas drivers for alot less money. (However some are made by German labs=import). I will say that Tyler uses superior xover components and that the cabinets are very nice, that may justify the price to some. There are 3 superior woofers: Seas Accuton Skaaning. So if you want "best" dynamics, make sure the cabinet houses one of these 3.