I was just wondering what a good BL rating would be. And what exactly is a Telsa meter? I have seen ratings from 7.39Tm to 19.17Tm. What is the difference between a BL curve and just a BL rating in Tm? I am just trying to learn some of the more technical stuff!
all i know is telsa meters is a magnet strength mesurmnent but well that all i know lol...also the higher the rating the stronger the motor...and a telsa meter records the telsa stuff lol
a bl curve is a graph of a motors strength over the majority of the drivers usable excursion, a flatter bl curve means lower distortion. a bl rating is related to the speaker's sensitivity. a higher bl will generally means the speaker will have a higher relative efficiency or sensitivity.
So when you are talking about the BL of a sub, a higher rating is better because there is more control of the moving mass of the cone. What about sensativity? A higher rating the better?
Oh yeah.... why are BL ratings so much lower for DVC subs? In most cases I saw, the BL rating was like half of the SVC version, whats the deal with that?
yes a higher BL usually maens a stronger control over the driver movement which is better for keeping a tight, accurate response with a sub.
a DVC sub will have a lower Bl per coil because each coil is half the length of a SVC sub. remember the l in Bl is the length of the coil.. so you're essentially splitting the l in two for dual coils. same reason an SVC sub may take 200 watts, but a DVC sub of teh same type is 100 watts per coil.
Anonymous
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RE MT's BL is 49 tesla meters. Says alot since we all know the ability of that subwoofer.
So for example, I was comparing my old mtx 7000 SVC sub with a BL of 18.97 and then the avalanche 15" DVC sub with a BL of 16 and i was wondering how could my mtx possibly have a better motor strength, when in all actuallity the avalanche is much stronger? Do I have that right?