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The driver in the Vanquish features a much larger magnet/motor structure. The motor also features a 3 inch voice coil instead of a 2 inch voice coil as in the SVS. To get a similar sized motor from SVS you have to upgrade to their much more expensive PB12-Plus subwoofer. I am biased about sound...

Thanks for mentioning us David. :) Yes, we are about to release several new lines of subwoofers. The larger subwoofers feature shorting rings and some other great stuff. We will also have some drivers with power handling over 1000 watts. :D Chad Kuypers Ascendant Audio

Will, The Atlas 15 actually works VERY well in a ported enclosure as well as sealed. We have detailed plans we can supply that take all of the guesswork out of building it too. :) What kind of enclosure size are you looking to stay within? Let me know. Chad Kuypers Ascendant Audio

Brad, Jack is right about the ability to run each driver in series-parallel and still use them with a 4 ohm capable amplifier. It looks like a 3 ohm load on paper, but in reality the subwoofers' impedance will not really drop below 4 ohms in an enclosure. I have a pair of Atlas 15's in a 6+...

Jack, Looks great!! Thanks for posting some pictures of your setup. I am glad to hear that it is indeed giving you the output that you desire and then some. :) I never like to comment about our products versus another, but I can tell you that there is a very noticable and measureable...

Thanks for the kind words. I can't wait for you to get your project up and running. :) By the way, we are now a supplier for Precision Ports. Give me a call or drop me an email. Chad Kuypers Ascendant Audio

I am currently trying to secure a source for 6 inch flared ports as we speak. I should have some answers in a couple of days. :) Chad Kuypers Ascendant Audio.

I can't wait to hear what you think!! A ported Avalanche 18 has downright scary output. Any decent amount of power with your enclosure will definitely should get things shakin'. :) Chad Kuypers Ascendant Audio

Hey Randy, I am truly glad to hear that everything is performing to your satisfaction. :) I look forward to seeing some measurements etc. of how your subwoofer performs in your room. I am also glad to hear that the subwoofer blends well with everything in your system. Fantastic!! I...

Hyun, Those are BEAUTIFUL cabinets!! You have got to be getting a LOT of low frequency output in that setup. :) Sorry that I modelled up your subwoofers FR with a slightly larger enclosure than you have. You said it was a 24 inch cube and I modelled it as though it didn't have dual thickness...

Hi Geoff, The graphs posted on our website are anechoic simulations done in LEAP 5. It is a bare-bones simulation. There is no room-gain added and no 24 dB/octave upper crossover slope at 80 Hz integrated into the graph as most people would use. Adding those two factors into the graph would...

Scott, I am 100 percent with you about wanting full output capability down into the teens. :D It is an awesome effect to have that kind of output ability, no doubt. I think you will find that the Atlas 15 is more capable in the lower regions than those graphs are showing you, especially when...

Kurt, I am thrilled to hear that everything turned out great. :) I eagerly anticipate your impressions when you finally have a chance to really take a serious listen at some higher volume levels. As Jack mentioned, you also have the option of using an LT. This would get you a flatter...

Hey Scott, I would keep the enclosure closer to our largest recommended enclosure for the Atlas 15. The problem encountered when you make an enclosure as large as you mentioned is that you are sacrificing a large amount of maximum output between 30 - 80 Hz for more output down low. The 11...

Kurt, Don't sweat it. :D I will overnight a new driver to you on us, so you can get it back up and running ASAP. (I hate waiting for things!!!) I am just relieved to hear that it was only a wiring mishap. The Atlas subwoofers can handle quite a bit of juice, so it indeed sounded like you...

Well, you are the first guy to blow one up. :) I will have a new one sent out to you tomorrow. You didn't wire up the amplifier to the gold terminals did you? If you did, that is why it blew up. The silver terminals are for the 4 ohm voice coil which is twice as large as the smaller 2 ohm...

Your question is excellent and you hit the nail on the head. Having two different voice coils allows a larger range of Qts. There will be a wiring tutorial up by tomorrow morning explaining how to wire the Atlas subwoofers for an infiite baffle or dipole arrangement. You can power the smaller...

Once again it has been a busy week and I haven't had a chance yet to reply. :) Her are some answers to your questions: Randy, There are some enclosure recommendations up on the website for the Avalanche 18 along with the other drivers. For your preferences I would recommend the 20 cubic...

Hello, Sorry about my absence to your questions. The weekend was busy and I am shipping out more drivers every day. :) I am simply referring to the majority of drivers that have a single gap and a long voice coil. They usually exhibit a parabolic BL curve as a result of their motor...

There is some more info up on the website. In the next few days I hope to get all of the wiring diagams and enclosure recommendations posted. Thanks for your patience! Sounds like a plan. :D If you are using a pair of them in an IB, you can just wire up the smaller 2 ohm voice coils in...

While it is not completely up, there is product info posted on the site now. The ordering/contact info etc. will be up tomorrow/Tuesday and we will be completely ready to roll by Wednesday. Atlas subs are in stock while the Avalanche are still a week or so away from being available. Recommended...

Thanks! Chad Kuypers Ascendant Audio

The Avalanche 18 will in fact be $399. The Avalanche 15 will be $329. I hope this clears that up for you! :D Chad Kuypers Ascendant Audio

In regards to availability, the Atlas subwoofers are actually completely finished and ready to go. The larger Avalanche subwoofers should be ready in about a week. The website etc. will be up on Monday at the latest. No pre-orders... :D Chad Kuypers Ascendant Audio

Doubling the swept volume gets you 6 dB more output. Doubling the power gets you 3 dB more output.

Thanks Darren! :)

Yes. Take a look here at the page that appears before the measurement above: http://www.mfk-projects.com/dpl_12_measurements.htm There also used to be another website that measured this amplifier and had pretty much the same graph. It had posted resistor values to flatten the frequency...

This is the measured frequency response of the 300-794 that many people use. You might be surprised: http://www.mfk-projects.com/images/SUBFREQ.gif Hope this helps. :)

The larger XBL^2 (tm) subwoofer drivers that have 27 mm of xmax will also feature beautiful custom-tooled inverted Carbon Fiber dust caps. :) Hope this helps!

The post above is the first time I have publicly mentioned my new subwoofer drivers. I will be giving a much more formal introduction about everything in the next few days. Here is some very quick information for you: There are two brand new XBL^2 (tm) motors that I have designed for two...