sundownz

The prototype has arrived :

Here is the tweeter plot with off axis included.

The FS of the v1.75 is about the same -- the softer spider is countered by the lighter coil in terms of the FS.

I should have the midrange final prototype in my hands on Monday... assuming it is 100% to my liking I will announce pre-order pricing as we have already started to get materials together for the tweeter, crossover, etc.

Response graphs of the mid (with off axis) and the tweeter -- the thick vertical line represents the crossover frequency. As you can see it is very appropriate on this set to get a nice response from both drivers : We will measure them in my car too once the new mid arrives.

So it is a bit confusing due to several updates along the way... so the above should help out when ordering a re-cone kit. We need to know what version you have to built the correct kit. Aside from the box printing being a bit mis-leading it's not super hard to understand using the above picture. The 60 unit run of "v.2" woofers (v1.75) was only sold to a few people who knew up front about what they were -- I just had the factory put v.2 on the box so we would know what they were as we unloaded the truck. But I am sure someone will get one of them second hand. They can be re-coned to standard v1.5 parts with copper coil and hard spider. As the photo indicates the baskets cannot be swapped around. This is due to a bolt pattern variation -- some savvy users have drilled their own patterns and that is fine as all version v1 through v1.75 have compatible motors -- there is only a slight gap variation across generations of those but not enough to make a significant difference when using them together. The actual v.2 model is COMPLETELY different. Someone would have to make custom adapters and/or drill and tap the top plate of an older motor to use the basket. I am not planning to offer this adapter.

There is no reason you cannot port them; but I am gearing them towards sealed much more than the SA-8

Pre-order information is pending; I will announce more NS v.3 information once the final prototype gets here.

holy alliteration batman! im concerned about the choice of mosfet mounting. one thing ive always bragged about on sundown is the horizontal fets They are not vertical -- they are at a 45 degree angle and still bolted on like they were flat.

Got some factory pictures just now -- it's shipping to us soon. Assuming all goes well we'll start production of this and the 2500D v.2 very soon! * I had mentioned we were working on double inputs but it wasn't going to work out with the narrow casing. Outside of dedicated SPL the difference is not significant, though. * We got the production RCAs on this prototype. * BEEF

They turned out nicely

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

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.

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)

To ensure that contact is organized and prompt please read the following. DO NOT post on Facebook or the Forums to request order status, warranty information, or pricing. It is VERY difficult to know who you are or what you ordered this way. Forums and Facebook are designed to share new product information, customer installs, updates, etc and are not optimal for the aforementioned things. MAKE SURE you provide your REAL NAME somewhere on the e-mail -- if you are asking about an order make sure to tell us the name and e-mail on the Paypal payment as they very often do not match. For order status and tracking : [email protected] For basic pricing (including stock drop-ins) : [email protected] For odd-ball stuff (custom re-cones / parts) : [email protected] (be patient, my box gets bombarded) For dealer inquiries : Dealer Inquiry || request more information For warranty : RMA Form || request your RMA # here For general information / tech questions : Contact Us or [email protected] If you absolutely cannot reach us electronically and it's an emergency you can call. It is preferred to use electronic contact so there is a written record for future reference. If you do call; DO NOT call us 100 times in a row if you don't get an answer the first time -- leave a message and/or wait 15-20 minutes and try again. Someone is not beside the phone 100% of the time but someone is there most of the time. Again -- it is preferable to use the above contact before calling. Calling opens up significant room for errors and leaves no record of the conversation. 704-528-9700 : Ext 3

It's a good idea -- I'll have to get one up there and list all the contact methods.

Obvious by what measure ? As customer base size increases the absolute number of any form of error or delay will increase even if the percentage stays the same. This is simple math and happens as any company grows their customer base -- it does not represent a failure on the part of the company. Unless you have some objective data such as the overall percetage of customer base that has received poor customer service your statement is unfounded. As someone who works 6-7 days per week to handle our customers in the best way possible I am offended by your conjecture. Customers are handled as quickly as possible and much better if they use more optimal forms of communctation; eg: Facebook and forums are not ideal to receive order status updates, quotes, and warranty information -- they are designed to share new information about products and happenings at the company. I have no idea who a person is on the forum as 99% of the time there is no real name, no e-mail, etc. A large percentage of the orders we receive via Paypal also have different names and e-mails on them then the person who ordered; and/or no shipping address / phone number; and/or no or inadequate information about what is being ordered, etc. In any event... there was an error on this order and it is being handled via e-mail as it should be. A call or e-mail can solve something pretty quickly. For reference; the best e-mail for status updates on orders is [email protected] -- I understand that it may take some time for everyone to get used to not e-mailing me about every detail but we do have two other staff on e-mails now (also [email protected] / web-site contact form). My auto-responder also makes this very clear for those that e-mail me and also offers contact information for Debbie and Brandon.

Making some progress on the finalized mid... the cone material turned out great on the first sample so we've moved onto the rest of the details : * Cone mounted on the new frame * Side view with the cast frame * Gap venting implemented... the finish is NOT final it is only for sampling. * The final finish will be smooth with chrome plating... will look VERY nice and also will be very corrosion resistant.

Bit of an oddball load -- the higher load test was about 0.55 DCR then I wired another different impedance woofer up to that to bring it down to about 0.35 or so DCR; which is similar to many "half ohm" nominal loads.

These arrived Friday; we'll be shipping this week coming up. So the pre-order is over... we do still have some in stock @ regular price.

12v clamp testing : 2420 @ 1.86 ohms 67.1v 36.06a 2490 @ 1.57 ohms 66.2v 42.1a 2750 @ 1.40 ohms 62.1v 44.3a 2950 @ 0.94 ohms 52.4v 56.3a Very pleased with that. It is right on par with the v.1 model -- we will do typical minor tweaks on production and maybe squeeze a few % more out of it. As usual this was done on my Extech power clamp; it reads power out directly very accurately. I use measured voltage to calculate amperage and then actual impedance. Once I get a handful of free time I will do a 16v round-up with all of the new prototypes.

The amp is here at the shop : * The main capacitor bank now contains 160v units for maximum reliability at 19v operation. * As with the other new 2012 amps we have a fan * 16x IRF064N power supply MOSFETs (BEEF)

Sounds like a good match, yes.

3800 Hz Standard 1" silk dome 89.1 dB 1w/1m on the mid -- tweeter is a ~90 dB

Here is the frame I will be using on the set (cast aluminum) -- as I said initially this first prototype is mainly to test / verify the cone material performs like I want it to. This frame is only a few millimeters deeper than the stamped unit... total depth is going to be about ~66mm which is 2.59" I am also thickening the back plate, doing some small motor modifications, and adding ventilation to the back plate as well to help relieve pressure / back-wave reflections and to keep coil temperatures down. I'll be putting the initial set in my car shortly... then I will be getting the revised midranges as quickly as possible. Once I verify everything we should be ready to roll soon after on production assuming it all checks out in my testing. Also... I expect MAP price from a dealer to come in under $200