Diamond Audio's new D3 speakers might be the starting point of our coaxial and component range, but they are anything but entry level. Diamond starts with the same high density proprietary composite ABS frame found in our D6 convertible systems, add a butyl rubber surround and a graphite injected polypropylene cone and you have the makings of a very good driver. Whether choosing a component or a coaxial system all D3 speakers utilize 1 aluminum dome tweeters. The D3 component systems use an outboard 18dB high pass/ 12dB low pass crossover with our RAF (Rear Acoustic Fill) circuit so it is easy to add more speakers to your system. You wont find a better combination of value and performance anywhere.