Sundown Audio SD-2 8" Prototypes

[sundownz]

Just got these in... designed them based on many requests for a really good sealed box 8" woofer. Power rating is pending testing but mechanically I designed them around 300 watts or so (half the spiders of the SA-8 v.2) -- we'll do our thermal cycle to determine the official rating. As is typical with our products the rating giving will be a "worst case" rating and many people will have no problem running a bit extra.

We built upon our newly tooled platform from the SA-8 v.2 so it shares many of the advantages of that platform from the get-go.

These feature an under-hung coil with predicted linear x-max of ~14.5mm one-way by 70% BL method using an 8-layer copper 2" coil with 1/2" of winding width.

The total depth for mounting is right at 4.75" measured,

I will be measuring actual T/S on them later on today after some break-in time. Pricing is also pending final costs from our parts suppliers.

On to the photos :

* E8 v.2 then SD-2 8" then SA-8 v.2

* For this design I used drilling in the basket as opposed to the vent ring to save depth.

* Solid pole like the other SD-2 woofers so there is no need to leave room to breathe behind them.

* Same spider as the SA-8 v.2 but only one layer (top layer)

[Ballen194]

Not bad. Look like affordable little beasts.

[sundownz]

I am happy with the mechanical behavior and observed thermal behavior so far playing them in free-air -- specs measured before break-in indicate I MAY have to make some small tweaks to it with the mass and compliance but it's about 90% there.

[G_skillz81]

oh wow, more Sundown sexiness!!

[Chris Hammer]

Thats awesome. When would they be available?

I'm tuned in. I am looking to move to a 8" sub in a sealed enclosure and on less power than the SA-8.

Looks perfect I like it.

[sundownz]

These are the very first prototypes so I do not have any ETA as more tweaking must be done.

[sundownz]

oh wow, more Sundown sexiness!!

They turned out nicely

[IH8PunkRok]

umm im in the market for just such a thing...

good timing

[Jordan Guess]

I'll be ordering two of these whenever they are ready. Are they specifically made for sealed only?

[Mtnbikecrazy55]

How do you think they would like a t-line?