SA-8 vs. 1508???

[nateberrier 10+ year member]

Thats what I meant. If that happens can some CA glue fix it or does it need a recone?

 

[memphis_vette 10+ year member]

would sa-8's be able to go sealed. i want to go sealed thats why im getting rid of my 1508's

 

[Imtjnotu 5,000+ posts]

i should soon have a review up for the SA8.....put it in a box at 1 cube off a PG xenon 600.1

 

[tommyk90 5,000+ posts]

Thats what I meant. If that happens can some CA glue fix it or does it need a recone?

You can reglue it.

I used goop.

 

[memphis_vette 10+ year member]

sa-8's sealed?

 

[Imtjnotu 5,000+ posts]

sa-8's sealed?

i dont think they recommend sealed but i could be wrong

 

[memphis_vette 10+ year member]

****. what are some good 8's sealed? SS rli?

 

[audioholic 5,000+ posts]

Suspension travel can be important, but like any other aspect of a speaker, its importance is limited. For burping, sure all suspension travel is useful (provided the coil can withstand the power needed to get that suspension travel). But for actually listening to, as in music, you dont want to consider your entire xmech as usable. Anything past xmax (70% of BL at resting pos.) will not be linear, and distortion will become a larger and larger factor.

 

[sundownz Pro Seller]

The coil of the SA-8 can't bottom out but you can hit the triple joint ring against the top plate (there is a ring under the spider that supports the triple joint and makes it nearly impossible to break) if you move the driver far enough to actually stretch the spider material a little bit... I tooled the small plastic ring under the frame to increase the distance for this to happen but we've done it on 2500+ watt burp.

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Tommy,

If I was building the 8s here I'd have them sanded to bare metal (I do that when I re-cone them and I also use CA glue) -- since I am not making them here it came out simpler to tool the steel bolt down ring -- it's easier for the build house to do the ring than add sanding to the build process. They could also do the epoxy trick but as you have noted that can still be broken with enough abuse!

The spider glue is really fairly strong (not as strong as CA glue but works well in general) as it never fails on SA-12s but the 8s have just as much motor force with MUCH less glue surface area to hang on. The bolt down ring will take care of heavy abusers like us //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

As for making the spider stiffer... I could stack two spider packs (they are already two spiders laminated) and cut the leads off of one so they stack (as they come with leads)... that would be absolutely ridiculously stiff but we can try it at some point.

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Oh yah - pics of the bolt down ring :

It sits on top of the spider insider of the top lip on the frame and bolts in from the back - this way the cone can't come down and smack the bolt heads.

 

[sundownz Pro Seller]

would sa-8's be able to go sealed. i want to go sealed thats why im getting rid of my 1508's

I would stick with the 1508 sealed -- the much higher Qts makes it a better option for sealed, IMO.

Some folks run the SA-8 sealed and like it but it really loves being ported.

 

[nateberrier 10+ year member]

It would be a shame/waste to seal up an sa8. As small as they are you dont need tons of space to port it. I have two in 1.6

 

[sundownz Pro Seller]

You have my address. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I have the D4 sample (I cut off and re-glued the cap on the D2 so it has extra mass now) that I can send your way for testing -- that work ?

 

[tommyk90 5,000+ posts]

I have the D4 sample (I cut off and re-glued the cap on the D2 so it has extra mass now) that I can send your way for testing -- that work ?

Whatever works for you. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

As for the spider thing, are you making recones for these in house? Because I really would be interested in trying a stiffer suspension as I get it to bottom out before I do any damage to the coil which leads me to believe that I can squeeze a little more out of it. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[sundownz Pro Seller]

Yah, I bring raw parts in and build the drop-ins myself for all of my drivers.

 

[tommyk90 5,000+ posts]

Yah, I bring raw parts in and build the drop-ins myself for all of my drivers.

Sweet. I smell a stiffer suspension setup soon. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif