Split coil Fi? Sexiness!

[SVT03L 10+ year member]

How are they planning on keeping the VC former from rocking in the 2 gaps? Thats an awfully tall former.

 

[Mr. Slate 10+ year member]

My first generation BTLs are old. I like this upgrade. Hope it produces as good as it looks.

 

[power-fanatic07 5,000+ posts]

How are they planning on keeping the VC former from rocking in the 2 gaps? Thats an awfully tall former.

i think nick commented on this subject...lemme see if i can find it

 

[twistedchild420 5,000+ posts]

Dis dat woofa....

 

[J31Rob 5,000+ posts]

Dis dat woofa....

everyone's favorite fella.

 

[audioholic 5,000+ posts]

Yep, isobaric involves two cones, very different than this idea. Isobaric did also cut down on THD *somewhat*, but the main advantage was in halving enclosure volume requirements, which use to be a bigger deal 10-15 years ago when subs were designed for higher efficiency which meant larger enclosure requirements.

 

[newusername 10+ year member]

How many cones are attached is kind of irrelevant. Tell me: does the radiating surface area change significantly? There lies your answer as to the semantics.

 

[Kyle_Keating 10+ year member]

As Neil says, isobaric means two drivers push on the same shared surface area. It doesn't matter which way you mount the drivers, facing each-other or in the same direction, you wire them such that the force vectors are in phase. This is simply an isobaric motor, so its shaves a bit of moving mass compared to two isobaric speakers. I'm guessing they did this to increase BL and bypass some SPL contest rules?

 

[Parker G 10+ year member]

So thats 2 very intelligent people saying isobaric

 

[loud-n-low 10+ year member]

As Neil says, isobaric means two drivers push on the same shared surface area. It doesn't matter which way you mount the drivers, facing each-other or in the same direction, you wire them such that the force vectors are in phase. This is simply an isobaric motor, so its shaves a bit of moving mass compared to two isobaric speakers. I'm guessing they did this to increase BL and bypass some SPL contest rules?

so is this design only spl beneficial?

 

[Kyle_Keating 10+ year member]

so is this design only spl beneficial?

Well you get double the BL product, that's like going form 20Tm to 40, its a pretty big jump. But i'm not sure its going to increase your SPL numbers, at some point you just run into a displacement limit. The only thing more BL will do is get you there with less power, but you'll need more voltage because of higher impedance (even if Dcr is the same). More BL is never a bad thing, it will if nothing else will reduce the current load across the coils and protect the driver a little more - burps are pretty aggressive i hear.

 

[loud-n-low 10+ year member]

i was wondering if this would provide alot more throw for those of us who like sealed boxes

 

[power-fanatic07 5,000+ posts]

not isobaric

im guess this sub will require an much smaller box, im thinking its going to have something to do with isobaric. dont know 100% but thats what im leaning towards. just like kickers solo classics line. nick someone correct me if wrong. but isnt that the whole point of this sub?

Not even close..sorry.

 

[Kyle_Keating 10+ year member]

oh ok, its "not even close" apparently

 

[jimrhit 10+ year member]

Interesting .... Hi Kyle //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif