Years ago, I needed to replace my 2x15" speakers in my cabinet, and "Electro-Voice" was the recomended speaker. I loved the sound of those speakers! Fast forward to 2008, and speakers have changed over the years. I mainly play through a 4x10" cabinet, and I'm happy with it, but I'd like to replace the Carvin 4 ohm speakers with a better quality speaker. What would be a good replacement?