NDMstang65

Daily driving and musical woofer..cooling technology is the same that is / was used and develooped in the BTL woofers. No other woofers have it simply because they are not machined in house to order. The SSD with standard leads, standard copper coil, and cooling is my favorite sub personally.

Well played sir

fdbz

Why not get dual 1ohm coils and wire the amp how it should be wired and avoid issues?

It's the difference in getting a custom suit tailored to you, or picking one up off the shelf.

3 spiders are standard, integrated is not..there should be an option for integrated leads on there. Standard ssd's use external leads and 7x3 spiders now.

Probably cheaper to get a short block..or get a 4.3 out of car-part.com than it would be to machine/rebuild that one. Sorry the bearings ate dude i suggested all i knew to try

xfgh hn

weeeeeeeeeeeeeeeeeeeeeeeeeeeee

The only time anything will burn on that assembly is if you hold an open flame on it, or get it so hot that it glows. They will glow if you inductively heat them via RF noise from the mosfets that aren't filtered out of these amplifiers..the coil doesn't care, as it is outside of the resonant frequency of the coil. The lead wire is another story though. Thread, everything is flame resistant.

They are not sandwiched on the 4" stuff, it is round lead that is sewn on top of the spider with completely flame resistant materials.. You can not heat shrink the entire lead, If you did that then the heat shrink would melt becauase of the insane amounts of heat and then it would have a pool of melted heat shrink tube that I am sure will burn. The problem is the lead is getting so hot that it is making materials that don't burn..smolder then when it flops about and moves it creates flames. You have to make the tinsel lead turn orange and glow to get it to do it. The lead is significantly larger than the wire on the coil...

Not sure what else to do..it's not a problem with the SP4, there's thousands of speakers out there with that exact same setup. Too much power? Leaned on something a little too long? Some new music could have had some funky stuff in it that's notched out that pissed something off..it's hard to tell. If it were a manufacturing or design issue they'd all fail. We're talking 7 subs here, out of thousands, 6 all have one family of amplifiers in common, and 1 outlier.

SP4's and the Crossfires have the same tinsels man..that'd be the first non sundown 3000/3500 d that's killed one...

Exact same spider, exact same tinsel lead, exact same thread. There's no difference here.. Power is power, watts is watts, which is a measure of heat energy. You're supposed to have less heat energy (watts) present with an amplifier that does less power.. But people are using other amplifiers, with no issues doubling, even tripling the power on those same tinsel leads. All subs that are known to have this issue are linked to the same amplifiers... A speaker is stupid, it does what it is told to do in the environment that it is placed in, including suicide

What amp does he have?! The exact same tinsel lead setup is used on the SMD's..amongst other woofers. There's nothing different there..and they have no issues.

ghasewrfaweasfdc

Not going to help me get a general idea of coil length..odds are the coils are off set north to keep them from slamming the back plate anyhow.

they'll drop in..but the set up height is way off the coil will not be centered

When did you email about the level 5 recones? If it was Friday I might not have got to it.

iuyfghjk

I emailed you back like thursday or friday... I don't know what will fit in that motor, not familiar with it. I remember asking any reason why you didn't want to do a recone from them on their woofer?

There are no tunings or anything on a sealed box..it is what it is. Subsonic is irrelevant, there's no port for you to drop below the tuning frequency on. Are you running an aftermarket headunit? How did he "set" the amp to do "800 watts"? How big is the sealed box?

Don't have any of the material to make the spacers any longer...I swear i've said this like 6 times the past week, which is very bizarre, are you the same person that emailed? If so I replied back that you will need right at 1/2" of space under the basket, you could get some abs plastic washers and stack them until you get 1/2" of thickness. Screws are M6x30mm if I recall correctly.

As mentioned there's something else going on if you're getting distortion..probably clipping the amp, bass boost on etc. Many people way a great deal more than 800 watts on an SSD and have no issues..some run less and have nothing but problems

Put the SSD in a ported enclosure instead of buying another sub first...a BL will have to go in a ported enclosure if you step up to it anyhow.