sundownz

SA-8 v.1 are sold out from our warehouse for NEW woofers... WoofersEtc.com has quite a few still in stock, though ! So go check them out if you need one. Also... Nick is still selling the re-built units as well : Re-coned SA8's

Glad you are pleased with them, Ric Not too shabby for our 600-watt driver that sells at the price it does

Indeed... really has almost no cosmetic elements at all in common with the "TI" basket other than being a tall frame.

90% of people that own them use a single run to the best of my knowledge. Typically only SPL competitors run multiples on an amp of that size.

http://www.soundsolutionsaudio.com/forum/index.php?/topic/7116-saz-1500d-power-testing/ This as done back shortly after the 1500D v.1s came out. We made some tweaks over the years that gained on 12v -- didn't really go back and do specific 16v testing. Still tweaking the v.2 1500s for optimum 16v operation (most of our 16v guys went to 3500s or bigger anyway).

Objective distortion specs are superior to the SA-8 v.1 which is already known as a good sounding sub

Charles, I may be building something soon for this type of musical demoing

I brought the wife to Macon as well and she got a demo

Building these for a customer... I wasn't happy with the limits I was facing with the 10" 12-spoke frame so I grabbed some different frames to use for this project ! One picture for now until I get some stuff back from the machine shop... but what is to come : Z v.3 Spider w/ Double Leads and Triple Joint Ring Z v.3 Vented Spacer Ring (from 18" Z v.3) Basket coil cut-out OD expansion at local machine shop Custom made spider riser made at local machine shop Wide-Roll Surround 10" Cone Full Length NS v.2 Coil The customer is planning to use quite a bit of power on these so I wanted to do something a bit special... anyone that knows me knows that I hate making 10s with 3" coils on the 12-spoke and 4-spoke frames!

Jeep Cherokee Sport 4x Sundown Audio sa-15s (stock) (4th Order Bandpass Enclosure) 2x Sundown audio saz-2500s 3x Mechman 300a Alts + Stock Unit 4x XS Power D3100s (12v) 156.3db off 4700w clamped power Jared can do a 3-round bass-boxing average of 155 dB or so... and the guys said he has done 157+ on burps. Withe one sub down from too much demoing Jared managed a 154.1 three round average at the Macon, GA show on Sunday -- on Saturday he showed the full 155.0 dB average :thumbsup: BASS BOXING VIDEO : ---------- OTHER VIDEOS :

153.6 at the show in Macon over the weekend -- between my HU acting up and varying weather conditions I was down some. But still not bad !

We've found in our testing so far that the v.2s don't do as well at 50+ Hz in their current prototype state so I dropped v.1s back in on a 4500D @ 0.5 and 16v Here is what we got so far ! Legal, sealed, on the dash. (I will be building some revised v.2s soon to get everything in check for production)

I'd expect somewhere around 0.7 to 1 dB difference between the amps assuming both were dialed in for maximum power and there was no compression elsewhere in the system -- not super audible by any means but would show up on the meter. Based on what I've gotten when testing a similar amp to the BC3500D.

I have 1kw on the prototype - that is what I'd suggest.

My frequency dropped a few Hz with the v.2 models in there -- likely due to the softer suspension on them. These also have a good bit more displacement so the effective box is smaller. So I may need to re-design the box and/or port a bit to really optimize these guys Good news is I'm within a few tenths at the same power at a lower frequency so I'm very pleased. What I am looking for is a better max score when more power is applied due to significantly more suspension travel. Another plus of the v.2 design is that I can add a single extra spider for SPL if I like as the bottom spider has no leads so it can easily be stacked on -- this idea failed in the v.1 (made one for TommyK) as I had to add TWO extra spiders as they came in packs. I think one extra would be useful in some SPL apps More testing to come with time on that + a newly designed SPL coil for this motor.

I made this reply over on CACO -- figured I'd re-post it with good info : http://www.caraudioclassifieds.org/forum/1454648-post75.html ---------- Yep! Expected MAP price is $600 even for the 12" model, which I assume will be the most popular. The NS v.2 motor already has two shorting rings as well -- so it has a triple shorting design now in NS-Q form. Underhung was for a more linear BL -- so basically what you said more technically The spider was made softer as the under-hung coils is SO light it had to be to get the desired specifications -- in my testing the single NS style spider also has no issue handling my 1kw amp. Another cool thing about under-hung is that they drop off drastically after their linear boundaries in BL. So the sub is basically incapable of over-driving the suspension. It actually works out phenomenally well with the ultra-tall top plate on the NS v.2 -- the FEA simulation shows a KILLER BL "curve" -- there is literally almost no BL shift whatsoever for almost 15mm one-way (where most of your SQ listening will happen).

I'd bet with the other coil it'll work fine HT.

Gonna see how the v.2s like this box Sadly one hole is slightly too small so I won't get to play with it tonight... but probably at some point tomorrow I will get to do so. Have to get home for the night tonight!

Also... DHL did break one so I took that time to cut it down to show a few design / build details of this driver : * Nobody likes to see this ! Felt like someone shot my dog when I saw that. * Cone out... nice view of the double leads. * Bottom triple joint ring that we all know and love from the original SA-8 * Second triple joint ring between the spiders too -- I like rugged ! * Pole cap much like the SD-2 models * Steel ring is bolted in behind each leg of the frame (8 bolts to hold the spacer assembly and spiders in place) * Internal logos and the inside view of the venting ring. Focuses the air on the coil better as well as building the proper velocity. * RIP SA-8 v.2 Frame...

Another video... this time with clamped power as well

Went into a bit more detail here : http://www.caraudio.com/forums/subwoofers/526996-sa-8-v-2-prototype-finally-done.html The one on the right is the original SA-8, then we changed to the frame in the middle for more clearances, and now we have our own frame... plus the v.2 has all new spider, coil, and motor design.

It softened up alot already -- we'll get new specs on it later. I had a 2500D @ 2 ohms on it -- clamped power is not known yet.

For reference it was CRANKED -- I'm not sure what it would take to get that kind of throw in a box but it would be ALOT of power. At levels that the original SA-8 would be making bad mechanical noise this one is dead silent -- I was excited so I pushed it as far as I could right away in the video *laughs*

I haven't been this excited since I got my first amp prototypes in 2006...

I am super excited... just unboxed the first one and took pictures as fast as I could... will have a free-air video up soon... more testing ASAP : * Newest @ left to the oldest @ right.