yaar tunning frequency only controls cone excursion ( SOME WHERE +3DB BOOST , SOME WHERE -6~-24 DB SLOPE CUTOFF )
HOW COME IF THE CONE DOESNT MOVE AT TUNNING FREQUECY , HOW CAN I GET MUCH SPL ON THAT FREQUENCY
IF I TUNE BOX AT 40HZ , IT MEANS THE FREQUENCY BELOW 40HZ IS CUTTING OF
AND THERE IS A PARABOLA CURVE OF db AFTER TUNING FREQUENCY
40HZ TUNNING , CONE EXCURSION MUST HAVE TO BE MINIMUM , IF THE CONE EXCURSION IN MINIMUM DEFINITELY SPL WILL BE LOW ,
WHICH IS SAME AS LOW VOLUME
LOW VOLUME - LOW EXCURSION