Maybe the fact that a AQ has an aluminum coil? as i said before aluminum coil=lighter allowing the cone to move faster increasing SQ and it can decipate heat faster. The AQ Also has a higher Sensitivty. Which is more SPL. Dont have to worry about Leads breaking or snapping either on the AQ. better suspension system as well. The AQ with aluminum coils will take more power than a BTL.
Your just a weee bit off on all of that, so i'll correct you...no sense in having misguided information now is there? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Not sure where you have to worry about snapping leads, the spiders are integrated with 16 tinsels per sub...so we'll write that one off. Our standard coil is an aluminum round wire coil, so the weight issue isn't a problem either. We do not use copper in the BTL's.
First of all Transient response ('Fast' that you are speaking of) is in/a direct correlation of BL..or motor force of the assembly x length of coil.
It does not have a higher sensitivity, the motor is weaker (Has a pole vent, less material inside of the motor, smaller diameter motor, overall..weaker). On a 1w/1m basis..the HDC 18 for instance and for some very odd reason is less efficient than the 15 inch model..which is..well..weird. 89.8dB 1w/1m with the 18, 91.532 1w/1m with the 15..how that happened I haven't a clue. The only thing I can figure is a moving mass issue killing the efficiency of the added cone area of the woofer..which is a great possibility of almost 500 grams of moving mass..
The newer BTL is a little higher converting 1 watt electric into acoustical energy. 94.9dB 1w/1m with the 18 and the 15 at 93.1dB 1w/1m with the smaller 3 slug motor...the 11.25" motor is in the 96.x range on the 18..and 95.x on the 15.
Not pointing fingers, just correcting what you are incorrect about //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif..
Regardless, speakers are horridly inefficient in taking electrical energy and converting it into acoustical energy..the VAST majority are less than 1%
Cheers!