SUSPENSIONS

NEW! State of the art Patent Pending technology will make a new radical class of ultra excursion woofers!

This suspension provides up to 6 to 8 inches of excursion!


A partial benefit list includes;

Immense power flow...
Superlow 7 hz frequency response
Huge force generation and control over the loudspeaker cone
Any size possibility
realistic price range

Loudspeaker Suspension Truths and Myths:

MYTH 1:A bigger cone always makes more sound output power and deeper bass than a smaller cone.

MYTH 2: A smaller cone and larger surround suspension reduces the total sound output because of the smaller cone. THIS IS COMPLETELY WRONG!

Many audio people including engineers believe these 2 MYTHS. They have also made the wrong conclusion about fat edge loudspeaker surrounds, for similar reasons.

The first reason this MYTH is wrong is because the suspension surround is not made of fishnet, the surround itself pushes air out of the way JUST LIKE THE CONE! Unless the surround is made of fishnet it is pushing air just like the cone. In fact it will push a relatively higher amount of air at a much higher amplitude(db) compared to the same woofer with a larger cone and a smaller surround. If fact the part of the surround that is nearest the cone will push out the most amount of sound power. On "normal" edge surrounds at low excursion about 1/3 of the width is basically just like the cone(live), the other 2/3 is "dead"(does not contribute to the total sound power). When pushed to high power about 1/2 is live, 1/2 is dead. On fat edge with HIGH excursion about 7/8 is basically just like the cone(live), the other 1/8 is "dead"(does not contribute to the total sound power. Later when we update this page we will show how to calculate edge sound power very exactly.

MYTH 3 is that sound "volume" as in db volume(loudness or sound power) is equal to the total amount of air moved by the cone(cubic volume). THIS IS COMPLETELY WRONG!

Sound power and or db is related to the squaring of the amplitude(excursion) times area. It is this squaring part that so radically increases sound output power!

In the early begining days(late 1940 and 1950's) audio engineers and scientists required a method to discuss loudspeaker qualities and performance. The first is the physical size, the second is the amplitude it moves in and out (excursion). For ease and simplification they roughly got everybody talking in terms of diameter and excursion. so a 10 inch woofer with 1/4 inch amplitude excursion , or a 6 inch woofer with 1/8 inch amplitude excursion, or a 15 inch woofer with 1/2 inch amplitude excursion ect.

Over time people and engineers automatically began to assume that if you multiplied the loudspeaker diameter by the amplitude of excursion you would get the total "volume" of air ejected by the loudspeaker. While it is true, you do get the total ejected "volume" of air, everybody incorrectly assumed more ejected air "volume" is louder and or outputs more sound (acoustic watts). THIS IS COMPLETELY WRONG! TOTAL SOUND POWER IS RELATED TO THE SURFACE AREA TIMES THE AMPLITUDE SQUARED! What this means is a SMALLER CONE moving with BIGGER amplitude is louder(more db and sound watts output) than a LARGER CONE moving with less AMPLITUDE!

Here is an example as the proof; take an woofer that is square shaped for simplicity. A 1 square foot woofer cone. A 1 foot square woofer moving with a 1 inch amplitude is ejecting 144 square inches times 1 inch amplitude = 144 cubic inches of ejected air.

Now take a 2 square foot woofer cone moving with a 1/2 inch amplitude. This ejecting the same 144 cubic inches of air. Same sound pressure level? Same db? same acoustic watts output? NO!. Although they are both ejecting the same amount of air, but the SMALLER woofer is making 2 times the acoustic wattage as the LARGER cone!THE SMALLER CONE WOOFER IS PUTTING OUT 2 TIMES THE SOUND AS THE LARGER WOOFER! AND 6 DB HIGHER ON THE CONE FACE!

Sound power is proportional to the amplitude and velocity SQUARED!

I know it may seen hard to believe but it is true.

If you still don't believe me, look around and ask around, a modern high quality db type 12 inch woofer will beat up and play much louder than a normal modern 18 inch stadium loudspeaker, ESPECIALLY IN THE BASS, even though the cone area is about 4 times smaller! AND it does it in a much smaller box!

Later with more time we will update this page with lots and lots of boring math to prove it to you, even further.

MYTH 4:This myth is that a loudspeaker doesn't need that much excursion. Just ask any real serious db competitor or car stereo champion if a woofer needs more excursion, all of them will say yes, and so do we. Most car stereo people and some engineers believe that you need 1000 or 2000 watts before normal cone excursions limits of about +-1.5 inches (+-38mm) are reached. while sometimes this is generally true, this is at the higher frequency resonant bass used in db competitions and car stereo shows (40 to 80 hertz). If you listen to classical, rap, rave or computerized music many of the songs have pure fundamental notes at 10 to 30 hertz. It is that these frequencies when the excursion goes WAY up. Excursion is proportional to the inverse frequency! In other words if you lower the bass frequency by half the excursion goes up by 2. So say your pushing 2000 watts at 40 hertz into your woofer and yes it is probably moving about +-1 inch. If you wanted flat response to 20 hz you could not get it because you would need about +- 2 inches of excursion, in other words your ordinary woofer is dieing, or at least at it ultimate limits. Furthermore, the human hearing response get weaker the lower the frequency, even though everyone can hear vibration flutter from 5 to 20 hertz, having a flat frequency response woofer is still not quite enough. The world needs much more excursion.

MYTH 5: This myth is that a higher excursion woofer needs a BIGGER box to play the same loudness and frequency deepness of bass. This is wrong. Higher excursion woofers actually can use a SMALLER box for the same sound acoustics wattage output, AT ALL FREQUENCIES, including the ultrabass 7 hertz. A bigger box size is needed more when you have a very large cone AREA, like 18 inch or 15 inch woofers. Excursion does not have that much to do with box size (in tuned vented ported boxes).

More info soon.