HAHAHAHA ROFL Sir ye raaz faaash ho chuka hay on secret cell phone messaging 
Bilkul Sir 3001 is zabardast SQ sub
which rattles the whole car from in and out and totally does not blend in with rest of the music, muddles the midbass, over powers the highs and midrange.
But still zabardast sub capable of extreme lows aka SQ capabilities; such as rattles the cars, makes the roof flex, make the winshield wipers bounce off a few inches off the windscreen, turns on the alarms of the nearby parked cars, enough to make your ears go numb and starts to ring (temporary threshold shift or Noise-Induced Hearing Loss.), so that one can enjoy the full depth of music with numb and ringing ears and while being half deaf :P. Yehi to @$$ KEYUE HAY ....!!!!!!!
ZABARDAST sub meant for purest SQ. Baat karta hay..........
ADDED :
Quotes from the following link.
Hearing Article
A word about temporary threshold shift:
When the ear is exposed to high sound-pressure levels even for short periods of time, the listener experiences a type of hearing loss known as "temporary threshold shift." If you've ever been to a loud rock concert, you know what I'm talking about: When you step outside the arena, everything seems unnaturally quiet. But after awhile, your threshold of hearing returns to a level very close to its original level and you can hear again.
The symptom most common to this kind of impairment is the inability to distinguish between different sounds at normal listening levels – words seem to run together, speech and background noise mesh, and music sounds muffed. While hearing aids and other devices can alleviate some of these problems, full hearing capability can never be restored.
^^^^^WOOOW ki mazzay dar sound aaty hogy SQ setup ki when ur ears go numb or in "temporary threshold shift" or you are half deaf and unable to clearly hear the sound.
Note that OSHA regulations prohibit exposure of any duration to sound-pressure levels above 115 dBA unless hearing protection is used. Unfortunately, levels of 120 to 130 dBA are fairly common at sound-off competitions.
^^^^WOOW 3001 SQ sub pushing 115db+ of extreme low bass, i remember my ears were always numb (TTS) after about 10 mins of listening ie bass must be near 115db or exceeding it, thats why my ears got numb.
Imagine such a Sub installed with 400k worth of components and amps just to make your ears numb so you can not listen or enjoy the music since you get numb ears.
Calling such a subwoofer a SQ sub seems fair to u guys ?