Thanks. I prefer the sound of the ART Arrays. They have greater bass extension and impact, and the midrange of the Dayton 5.25" drivers is cleaner than the Fosters. Also, the comparablu priced Vifa DX25 tweeter has greater resolution and extension than the Eminence ISD-1001. The Vifa is just sensitive enough for use in the ART Arrays; it probably wouldn't be sensitive enough for use with the Tallerays, but I intend to try it with only the 10uF cap and the shunt resistor, as it is used in the ART Arrays and the Studio One Pi speakers, to hear how it sounds. If it works ok it would upgrade the Tallerays' sound a notch or two. The primary avantange of the Tallerays is they are really cheap to build, and since no box is required, they are an especially easy project for a beginner. But don't misinterpret what I'm saying - these speakers don't sound bad at all. They are sensitive and are very dynamic, and their soundstage is really big.