sundownz

Been working on these for a while but haven't said much... but Andy @ Vex has posted some videos so figured I'll open it up now -- some photos : I have requested spring loaded terminals for production since I hate spades... also will have our logo on them. They are all single 8-ohm so more can be wired to one amp -- the 200.4 can power 32 of them Flat, tied down tinsel leads as I could still hear lead-slap on mid-bass heavy material on our first sample... good quality paper cone... vented neo motor for high power handling. What is different ? Well... we made a real CAR speaker here. They will have great mid-bass in IB or sealed -- this sacrificed some of the sensitivity rating but if you ask anyone that has heard them output is NOT a problem and the gain in mid-bass, especially in IB, is WELL worth it. Most PA style drivers have ultra high sensitivity as they are made to run PORTED in a PA environment... almost nobody ports them in a car. We also chose Neo as when you get several of them in a door weight is a BIG issue with ferrite PA drivers. In any event... there they are. Pricing will be about $99 on 8s and $115 on the 10s on the pre-order.

So I guess you guys want a pre-order on the NeoPro 8s and 10s ? I've already had production started for a bit

I NEED a 1500! My amp is fried!!! Please pm me! I don't use PMs on most forums -- email me at [email protected]

From SSA thread : "I may have 12x used 2500s up for sale shortly... if you want to be put down for one if they arrive post in here. They will be 575 each shipped w/ 1-year warranty. I will update if I get them."

http://www.soundsolutionsaudio.com/forum/topic/10634-used-b-stock-refurbished-amps-and-misc/ Currently 12x 1500s up and may have 12x 2500s soon.

I am back.

They are going to be 8-layer flat aluminum stock -- no plans to stock a copper coil for them as the suspension is designed around the mass of an aluminum coil. The coils will be made in the USA and shipped over to our factory for final woofer assembly.

Good stuff

Too much going on up until now -- but like I said originally I expect them by summer and I'm still expecting 1 or 2 sizes by then. I haven't brought in any samples of the boots for these as it's a simple item and I'll just tool and have them on the run when they arrive. Have also been finalizing the coil -- my most recent samples were mostly correct so we are just about there.

I see me in there -- nice to meet you, Steve

u talking about a prototype or more info A prototype or at least some / all of the parts.

Me too -- should have something by end of next month.

Cool story from CES today... I spoke with Jim from Alpine and he worked on both the new Type-R and Type-R shallow drivers; IIRC he designed the majority of both. Very cool guy -- interestingly he was aware of my test and aware of Sundown Audio and our products. Small world ! Talked with him for about an hour and it gives me more respect for Alpine knowing that they actually look at the smaller companies and what we are doing. I may also re-test the Type-R as Jim also thinks it should have fared better in the test; I also thought it would too based on all the solid engineering. So I'll re-do it at some point to make sure there were no errors.

Getting up super early tomorrow to catch my flight... will keep up as much as I can while I'm gone. Wish me luck on the flight

They can be made into 10s -- currently the new rings aren't yet in stock as parts. They would have the old ring + vented frame.

http://www.stevemeadedesigns.com/board/topic/92191-sundown-x-8-work-in-progress/page__view__findpost__p__1322784

Hope everyone had a good one ! I'm back @ work trying to wrap things up as much as I can before going to CES.

After getting several e-mails and calls about Sensitivity of subwoofers and seeing quite a bit of forum action regarding sensitivity I've decided to post this up... Sensitivity does not = Efficiency on a subwoofer on LOW bass. This is regarding industry standard sensitivity measured at 1khz -- this is where the spec is measure on 99.9% of speakers in the world. Hoffman's Iron Law dictates that out of sensitivity, small box size, and low-end extension you can pick two and the other suffers. In car audio, especially, you want small box and good low-end so sensitivity will typically be lower than a home audio woofer -- where you can use a large box and then have both high sensitivity and good low-end. Since we have done quite a bit of SA-8 testing recently I'll use it as an example for the rest of the discussion. Some recent SA-8 testing results to demonstrate this... measured in Sean's CRX in a box tuned in the mid 30s: SA-8 / CCAW Coil (83.42 dB 1w/1m) D2 : Frequency / Power / SPL 25 - 430 - 123.9 30 - 400 - 127.4 35 - 300 - 129.0 40 - 210 - 129.6 45 - 120 - 128.7 50 - 90 - 128.5 SA-8 / Copper Coil Stock (78.6 dB 1w/1m) D2 : 25 - 470 - 125.0 30 - 240 - 131.1 35 - 140 - 132.9 40 - 100 - 132.6 45 - 170 - 130.7 50 - 270 - 129.3 Take note low-bass fans... at 30 Hz the copper driver with nearly 5 dB less sensitivity is using 60% of the power and is 3.7 dB louder. So... which one is more EFFICIENT on sub-bass by the real definition... output per watt. The CCAW coil doesn't pull ahead in real efficiency until out of the really low sub-bass region @ 50 Hz. So... sensitivity should at least pan out in maximum SPL, right ? We put in the SPL box tuned very high and still... not as much effect as you might imagine... the CCAW coil achieved 151.0 dB @ 1310 watts and the copper 149.9 dB @ 1600 watts -- not nearly as much as one would imagine by the 5 dB sensitivity different, huh ? Even at lower power... both drivers at 250-watts we have 144.9 on the CCAW and 143.3 on the Copper -- just 1.4 dB down at 68 Hz... for a HUGE gain down low. Is the higher sensitivity driver a better choice for peak SPL ? Yep -- that extra 1.5 dB will win the show... but is it worth a nearly 5 dB loss at 30 Hz (adjusted for power difference the actual loss is about 5dB) for a daily system ? In the minds of most car audio enthusiasts that would be a HUGE "NO SIR!" ----- This testing was done in-house for my own purposes of product development and not to simply prove a point... but since the point needs to be made I have decided to share it. Product design is a balancing act... with an 8" woofer on a standard diameter spider landing you need a certain amount of stiffness to hold up to what people do to drivers in the real world. On a driver like the SA-8 by the time you get to that level of stiffness a bit of additional mass is needed to drop the FS to a reasonable level so we used a copper coil to get there. Can I soften up the CCAW driver spider a bit and help the low-end ? Sure can -- and we'll be testing that too. The sacrifice is you end up with a less mechanically rugged driver that, in terms of VAS, wants a bigger box while at the same time the bigger box further compromises mechanical power handling. In terms of the SA-8 we are working on different spider tools and so forth to try and get around some of these things. So far the combination we have is the most effective for what most people need / want. If we end up being able to improve on it without sacrificing durability then a v.2 SA-8 will be born.

*laughs* Monster Java is correct.

Someone has to take care of things while I'm away : ... and his wicked awesome tool set that I got him for Christmas has an accurate plastic caliper with it so he can measure the gaps, coils, etc

I am leaving January 4th and returning the 12th -- so will be back to work on the 13th or so. While I am gone some orders that can simply be boxed and shipped will be completed -- customized items, re-cones, etc will wait until I get back. Some staff will be here but operation will be at limited capacity.

That is how I roll I am working on some other new versions of several lines as well... constant development!

It shouldn't take too long to launch the "v.1" X series. It is the custom frames that will take time

For the standard X-10,12,15,18 on 4-spoke / 6-spoke frames I expect them all out next year most likely... This thread is about the standard X series 1kw line that will be in place until the frames are tooled. We need a 1kw line now so I am going forward with these in the mean-time. ----- For the custom frames in all sizes it will be a year or two -- 12s are the next size after 8s... then 15s... then 18s... then probably 10s last.

Nowhere in the foreseeable future, honestly.