I received my SD-2 8s today for review. I want to thank Jacob for his generosity. I've never reviewed anything before and consider it an honor that he would allow me to do so.
The subs were well packed and are gorgeous. I won't burden this thread with a bunch of pics because a lot are already available but here's a couple.
My first impression is analogous with the others who have received their subs. These things are stout and extremely well put together, which is nothing new for Sundown. However, the construction of the SD-2s appears to be above and beyond the Sundown products I've owned before. These are around 15 lbs. apiece. The basket is dense as well as the magnet. I notice that they vent out the sides rather than the rear, giving you more mounting/depth options. But this magnet is not just slapped on to be impressive (which it is) If you have held an SA series or E series, you'll recognize a conscious effort in the SD to apply design efforts away from general SPL. Though, knowing Sundown, SPL will always be there.
Though these are very reasonably priced, they have all the amenities of high quality subs: push terminals, DVC, and rubber lip covers with stamped logos. What intrigues me most is the cone and surround. Reminds me of the SA series which is built for punishment. I love when I see stitching on the surround. I believe that cone is similar (or identical) to the thick paper cone on the SA series. Which brings up my only concern.
Currently I am running 2 DIYMA R12s ported on a Arc 1500xxk so, that is my comparison. Though it might seem strange, I've dealt with Sundown enough to know better than to doubt the output. Sure, these are 8s but Sundown subs typically perform to the next size up as for as output is concerned. Also, I expect their response to be top notch. My concern is the blending aspect. The R12s are as good at blending as any sub in existence IMO. One of the main reasons is the thin aluminum cone. The thick paper cone of the SD-2 (at first glance) seems to be the antithesis of that. I may be showing my inexperience here but I believe that the cone will be the crux of the blending ability of this sub.
That being said, I am super stoked about hearing these. I actually have tomorrow off and I was going to cover the box I built but now, I'm chomping at the bit to hear these. So, I may just toss them in the raw wood box and let them rip tomorrow. If that is what is in the pics, don't give me any shit. My plan is to put them on the 1500xxk. They're in a box with .4 cu ft. each. According to Jacob, these will be fine with 450wrms each in that enclosure. I want to give these 1-2 weeks before finalizing the review. I will spend a day or two playing a certain type of music that I'm familiar with then switch to a different type of music. I will probably do updates after going through a specific genre. Finally, my last test will be my friends that are familiar with my system. I'm not telling anybody that I'm swapping subs. I will ask them questions crafted to figure out if they can tell a difference and see if they notice. Sorry if this was too wordy. Wouldn't be the first time I heard it. Hope it's at least interesting because there will be more to say.