for spl the solo-x is the win with 2000 wats or so but the L7 15 will not be bad eather and you can get the L7 for about 150.00 so for the price the L7 is the win and both will have varey low sq and you can get 2 L7 and run the 2000 wats if not i wood not go over 1000 on the L7 15