Hi Sups
I was hoping nobody would ask me that ...

I mean the thing still gives me nightmares. Sigh!

But let me try and give you some highly subjective impressions -
Ever sat in a Rickshaw where the backseat space has been taken up by two huge wooden speaker boxes (the space where one normally keeps ones stuff behind ones back)? The thing takes up so much space that the backseat is permanently tilted a little forwards making the passengers feel almost doubled up in crouching position.

hyeah:
Then the driver, rather than keep both hands steady on the handle for safe and alert steering, will also try to impress you in the middle of the road by playing DJ, tilting down with a thumb and forefinger perpetually on the volume control of some "Sweety" Amp or similar brand or make. Typically it will also be decked with flashy LEDs but let us stick to the aspect of sound here.
The shrill piercing sound of the tweeters have the same effect as a roughly handled ear bud might in your ears, while the hollow Boom of the woofer make your entire body tremble in resonance with the metal body of the rickshaw - although some call the effect as vibrating in "harmony" with the music

And the sound always has a perpetual Doppler effect with a progressively flattening pitch - as if the sound source is moving away from the listener at high speed!

hyeah:
Crash! Boom! Tinkle! Aaaaa ... Shriek! <vocals>
Crash ! Boom! Tinkle! Aaaaa ... Crash ! Boom! Tinkle! Crash ! Boom! Tinkle!
Now close your eyes and imagine the tiny satellite Bose speakers on the walls are replaced by 5 such Rickshaws hanging vertically in your lovely living room with the windowpanes vibrating with the "Rhythm" and "Flow" of the "music" !!

hyeah:
And the Demo ... Sssigh! The memory of that day is now faint but it went something like this -
Me: "So this is the SubWoofer?" quizzically ...
Salesman: "No sir! That is the
Bass
Extraction
Additive
Module"
Me: Pausing, puzzled ... putting two and two together after an initial stun effect - "Same thing .. right? A Woofer!!" I urge with resurgent confidence ...
Salesman: Exasperated and in a condescending tone ... "No sir this is
not a
Woofer! It is called a
Bass
Extraction
Additive
Module Only"
That night was an unusually warm night, as I lay in bed till 3am unable to sleep ... Watching the cobwebbed blades of the ceiling fan turn rather slowly with a creaking noise, due to low voltage, I suddenly realized I was feeling a chill ... like my blood was turning cold!
The chastising tone of the salesman and my humiliation at the store haunted me and I kept hearing his condescending voice again and again in my head ... "Repeat after me -
Bass Extraction Additive Module ... Bass Extraction Additive Module" Bass Extraction Additive Module" " ... his voice seemed to echo over and over.
Before I realized what was happening .. reality blurred into the haze of dreams ... A huge low frequency burring noise of a spaceship deep in outer space (30hz and whereabouts) filled my auditory senses (think opening shot of Star Wars in Widescreen VistaRama projection). I walked down the aisle from the Captains bridge, making my way towards the loo ... desperately wanted to pee ... suddenly I noticed the door to my right from the corner of my eye, lost in thought I had just passed it without realizing. A sigh escaped my lips as I turned around and grabbed the handle and gave it a violent twist .. and Whooosh! I was sucked into outer space ...!
Round and round I spun, my screams silent in the vacuum of space ... I tumbled around in ether ... like I was in a spin dryer of a front loading washing machine ... A spaceman tethered to the ship tried to reach out to me ... but soon he reached the end of his tether and gave up ... something was sucking me away from the ship with alarming speed ... into the horrifying blackness of outer space ... the millions of stars that dotted the dark fabric of outer space, a silent and indifferent witness to my existential threat.. was it a
Black Hole pulling me ..?!!

I looked over my shoulder as I spun ... far out in the darkness where even light seemed to vanish and stars sucked in ... it was
not a Black Hole!! ... it was ... a humongous bass-reflex port of a
Bass
Extraction
Additive
Module!!

Suddenly I realized the low frequency sound was not emanating from the spaceship ... it had been coming all the while from this huge and dark Bass Reflex port that was looming progressively closer and was sucking me in ... along with the light of the stars .. and the stars themselves ... !!
I survived that nightmare without a heart attack .. but I am terrified of re-living that dream ... been a nervous wreck ever since ...
Hey do I have too much time on my hands ... ?
I gotta rush to office now.
Cheers
--G0bble