Yes, but why would you?
How one 12 sounds in a box doesn't predict how any other 12 will sound... the SQL actually "sounds" best in 0.7 cuft sealed which is basically a cube big enough to fit the basket and motor into with some space for the pole vent. The labyrinth slot port design I posted on your other thread would make the SQL12 really pound but only if you have 3-5 kW of clean power to feed it... it truly is one of the most power hungry subs I've used except for some 24" IB beasts that I've installed for Home Theater.Actually Nick just told me to drop the volume of my box to 1.5ft3. I don't like a 12" in that small of a box. Can it actually work with 1.5ft3?
It can be, the larger the box the less Q (damping) controlling the motion of the woofer but if you go too big then it hurts power handling...On the parts express website it says 2.7ft3 tuned at 30hz. But would a bigger box be louder?
The results are what they are... they are based on mathematical analysis of the T/S specs and 2.7 at 22 is a full on SQ alignment typically used in creating speakers for use in the home - this is where WinISD defaults to when you first start a new alignment. 2.7 at 30 is a nod to the cabin gain and increasing the output above tuning to match the extra cabin gain. There's a mathematical point at which any alignment gives you the best compromise between output and low frequency extension. When pursuing SQ you want the slowest and shallowest rolloff possible as frequency descends. The alignment that has the slowest rolloff is Infinite Baffle, then sealed and then ported, the rate at which a ported box rolls off depends on the relationship between the box size and the tuning point. For the best SQ this usually means a much lower tuning point. When pursuing SPL or "Burp Boxes" then the tuning point is tailored to the driver, the box and the vehicle to maximize the gain at the expense of any output above or below the tuning point. The advantage that putting a sub in a car gives you is the cabin gain that increases the output below the frequency that coincides with the maximum dimension of the anechoic space. For your car that's around 70-80Hz so we'll use 80 to calculate cabin gain and since it's a smaller cabin and you are going ported we'll limit the lower end gain to 20Hz since you'll need an infrasonic filter at that point to prevent over-excursion in a ported enclosure.daloudin Your WinISD results aren't what they should be. At 2.7ft3 tuned at 22hz is not what that sub was intended for. Why not 2.7ft3 tuned at 30hz like it says on partsexpress?