New 4'' coil 15 prototype ?

[mrogowski 5,000+ posts]

So basically you are saying high excursion is only good for SPL? I disagree. Its in the transient nature of music that high excursion capabilities can be utilized.
Its actually most SPL oriented subs these days that dont bother competing in the 'excursion wars'. Its the SPL guys that burp a single note, very near enclosure tuning, where excursion is at a minimum. In this situation, thermal limits of the driver are much more likely to be met before mechanical limits.

I didn't say that at all. Its all in the intentions of the design(er). I built a nice 18" unit that had a 4" coil and 7" spider. that combination gave me a swing of ~10mm, which was well within my planned design parameters. Sounded darn good too. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

What I find funny is how quickly people draw conclusions based on looks alone. 'Oh, it has a big coil and magnet stack - it *must* be for badass SPL then...'. Since we know little of the unit outside of seeing it in a picture, there is absolutely no way to determine what application it was designed for.

 

[denim 5,000+ posts]

We could photoshop it more. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[fearof85 10+ year member]

I ask my friend who sent the email if it was a PAP and he said it is a new line of subs coming out. That is all I know about this.

Thanks

Drew

 

[audioholic 5,000+ posts]

I didn't say that at all. Its all in the intentions of the design(er). I built a nice 18" unit that had a 4" coil and 7" spider. that combination gave me a swing of ~10mm, which was well within my planned design parameters. Sounded darn good too. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
What I find funny is how quickly people draw conclusions based on looks alone. 'Oh, it has a big coil and magnet stack - it *must* be for badass SPL then...'. Since we know little of the unit outside of seeing it in a picture, there is absolutely no way to determine what application it was designed for.

I was referring to your comment that high excursion is rarely seen with music material so why bother investing in it. When placing that in the context of a discussion about the spider width not being sufficient for extreme linear motion, it would definitely seem you are indicating high excursion is for the realm of SPL setups only. I dont see how that relates to your most recent comments, that we are somehow determining the design intent of the driver based on looks. We are TOLD it has a 4" coil, not just seeing it on a pic. What we did see in the pic is the old Venezuelan basket that we know has a 7" spider landing. So Im honestly not seeing how we are jumping to any wild conclusions about its design intent. If the info we were told is wrong, or that is in fact NOT the standard Venezuelan frame, then we've been given false info or the pics are misleading.
Cheers. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif