$$$$$$$ is the concern here...if you have enough money to spend on 2 18 Ti Pros, or W7s, then you neeed to give some to me first!!! JK..well my shop sells both, and ill tell you this...the W7s hit cleaner, definately cleaner. The eclipse TIs are louder at lower power applications...if you have enough power to send to a W7, and port that *****, it will rattle your balls off, and sound beautiful...IMO