lol@20kg's.... it's not an orion 500 000 gigawatt spl sub . unless the spider is made of cast iron.>>> just for comparison's sake , a same sized ae sub is 8.6 kilograms and they are vey similar in construction. air-shocks???? why not full hydraulics? well obviously you are a smart ass so why ask questions in the fist place? i asked a simple question on weight ,not air shocks ..... why does have to be like having a tooth pulled? and i suppose ur air-shock suggestion was not being a smart-ass???...pfffff i'll just use THE damn phone....