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Howdy all. I've got a little time on my hands and have a couple of widgets at my disposal. I'm running Stevens Audio Full Body horns in my ride and have a few compression drivers to try out. The compression drivers I've collected so far are the Stevens Audio Pro Drive, Dayton Audio D250P-8, and the DIY Sound Group DNA-360. I've head them here and there, but not long enough to decide which are the best for me. I've got one of those Dayton Audio DATS thingies, so I decided to test out my compression drivers and see what the impedance curve looks like with and without the horn body. I figure I'd share them and spur some discussion on how important the impedance curve is regarding sound quality. Lets start off with some measurements of the drivers without the horn. Up first is a compression driver making a strong showing in the home theater scene, the DIY Sound Group DNA-360. Here is the DNA-360 in my scientific testing lab. Up next is Dayton Audio's offering the D250P-8 The Dayton driver going through the ringer. Lastly the Stevens Audio Pro Driver. The Pro Driver being tested. Now lets see the drivers tested with the horn body installed. First up is the DNA-360. This is what it looks like on the horn body. Up close of the DNA-360 driver. Here is the setup in the testing facility. This is what the DATS had to say about the DNA-360 in the Stevens Audio Full size horn body. Up next the Dayton D250P-8 installed on the horn. Here is a close up of the D250P-8. This is the Dayton driver getting tested. Here is what the Dayton D250P-8's impedance curve looks like when installed on the Stevens Audio full size horn body. Lastly the Stevens Audio Pro Driver on the horn body. Up close and personal with the Pro Driver. The Pro Drive getting it's turn through the test rig. The results of the Pro Driver. For shits and giggles here is my Electro Voice DH1A driver on a AutoTech 350Hz Tractrix Horn body going through the test rig. The results of the EV. Here are some side by sides of the D250P-8, DNA-360, and the Pro Driver. Any thoughts?

go all crazy Q and make a 21

Definitely. Make them work first. Anything else leads to failure. Not sure why you think you can engineer a skyscraper when you haven't made a one story building work yet.

A good driver for a 2 way does not make a good driver for a 3 way. And again, you ignore the whole process here which is to start with a 2 way. You really, really, really, really need to. I am about to write you off as a troll. You take no advice, don't listen, and just do what you think anyways. If you are going to continue to fail perhaps you should do it on your own. If you were in FL I'd understand, but this is the land of education. Open your ears once and listen, please.

It's MTD built junk. Mid level and better Cub Cadet is good stuff, but anything MTD is just a throw away mower. I suggest you spend a bit of money, as it can last a lifetime. My mower is 30 years old, and has never had and major work on it. It wasn't cheap, but it is extremely well optioned and well built. FWIW it is a Wheelhorse Workhorse, one of the first true hydrostatic set ups.

First let me start by saying my enclosure was not built for doing big numbers in mind, its a music box that plays damn near like a HT setup. This is strictly for fun and because the Ethos had to come out because I'm selling it to offset cost of the bigger build. My friend let me use his SP4 that is less than a year old until I pull it all out. The enclosure 3.65cu net tuned at 29hz with 44sqin of port. The amp and power Crescendo BC2000, 225amp alt and two group 34 batteries. Ethos 15 Dual 2ohm (wired at 1ohm) only pulling a max 60 amps of current according to the fluke clamp. SP4 fully loaded Dual 1ohm (wired at .5 ohm) pulling a max 83 amps of current I installed my Ethos 15 last weekend. The sub isnt even broke in all the way yet so I believe it will still get alittle louder over time. The biggest thing I notice is how clean it plays and how much it loves the lows. Yes my box is tuned low so that is expected but the sub does a great job of digging deep. The higher notes do equally well and Im sure in a higher tuned setup it would be different. With all music played it does just fine, rock, rap, country, dubstep, etc) Overall I love the way the Ethos sounds and performs and handles the 2k without even trying. The SP4 is probably my favorite sub I have ever used, they play so clean, loud and low and I was doing big numbers out of a low tuned wall with 18's before so I am kinda partial. (although that outlook may change over time ) Big thanks to Teric (Nadicle) for bringing over the meter and hanging out while we tested and did the direct swap. First I had the Ethos in, we rode up the road and started playing. Sounded good and was doing 2db louder than the FI Q that was previously in the same box and in my other F250 (basically same setup) Then we came back switched in the SP4 knowing we had to wire it lower at .5. I honestly was expecting to see a big increase and didnt think it would be close because of the extra power going to the SP4. Well here are the results. Take them as you wish but I think you will all see the potential of the Ethos. Mic on windshield drivers side, pass side windows down. Found the peak to be 35hz, barely its so flat. Ethos at 35hz.......................... 142.19db (at 1 ohm) SP4 at 35hz..............................142.83db (at .5 ohm) Now here is a shocker, song is "Hood Nigga" by KangarouX, better have big boy pants on to play this one full tilt. Ethos at 22hz............................138.2db SP4 at 22hz...............................136.8db In the kick the SP4 did have a 1db increase over the Ethos, but all things considered..................... Ethos at 35hz in kick Outlaw style.............. 142.3 SP4 at 34hz.................................................143.8 I realize the are complete different subs and both could be said to not be in the best enclosure for either sub. But just for a side by side drop in comparison the Ethos surprised both of us. This goes to show it doesnt take a 600 dollar sub to get the job done.

Figured I would share a few photos of a couple trucks I have had at the house. Me and a friend kinda go in and buy these old trucks and make them unique. The Studebaker is one of my favorite yet. It has really old copper riveted in areas and really makes it unique. Love the hood ornament here is the 54 Chevy tucked away in my garage. Love this pic

Sold

So now thinking black on bottom and blue on top. Also I got my new head unit today. Aaand I tore the front suspension apart to install the drop coils. Lots of things going on.

I want my zcon back!

What happened boss??

Do I need to post the screen shots of PM's and FB messages? You have shown your character. Everyone on this site and many others know I have never been rude to them for SSA business.

zcons on NS-1 2x 1st place at texas finals

Nice.. ordered recones today & stick with current build for 150+ with these Xcon's ..going to be nice to see what they might be able to do minty fresh:) Specially when able to do 147+ and they were a lil buggered when I got them;)

Theoretically numbers here for sealed on the dash. If you have lets say, an 04 imapala, two 12" xcons and two 3k amp with sufficient power tuned to about 32hz. I could see a high 40s on music. Maybe 47ish. Totally theoretically though.

all added. Better photos will be done as soon as the product arrives at my door. http://store.soundsolutionsaudio.com/categories/sub-woofers/dlp-customs.html