Those speakers do not include a built in pre-amp, some speakers that do include it are the Klipsch R41PM (on sale now) or the Kanto YU6 (not on sale)
Or you could get the Edifier with an external pre-amp (Pyle or ART)
Whats your current TT, why does it need upgrading?
What about something like this? I know its not the best but it would be alot easier to swallow after spending between 300-400 bucks on a decent receiver and two bookshelf speakers.