IXL-15 Designs

[mrogowski 6]

I should have some information up tomorrow for the IXL-15.2.2. It will begin with a EB-based design with some real-life measurements. I will follow through in the coming days with some testing of the IXL in-car. Nearfield, frequency response, impedance and other info will follow.

Best,

Mark

[tez4life 1]

sounds good Mark....

[mpimm 0]

AWESOME!

[Puggsley456 0]

[Viperoni 0]

Sweet

[///M5 2,833]

[mrogowski 6]

Its getting late so I don't think I will be able to do the testing today. The EBS enclosure is complete and the car box is close. I simply cannot deny Sean his request, so here are a couple of pics

Here, the 18" enclosure dwarfs the 15"

[Viperoni 0]

Hehe that 18" enclosure looks WAYYYY bigger than the 15incher

[Aaron Clinton 2,372]

How about some specs on those designs?

[mpimm 0]

Any news?

[mrogowski 6]

Sorry its taking longer than I anticipated. I will have full disclosure this weekend.

[Puggsley456 0]

Sorry its taking longer than I anticipated. I will have full disclosure this weekend.

Maybe I'll stop by and watch the fun?

[mrogowski 6]

You realize that by saying that, you are holding me to it now.

Yeah sure, swing by Saturday early aft...

[Puggsley456 0]

You realize that by saying that, you are holding me to it now.

Yeah sure, swing by Saturday early aft...

I'll be there.......me and My Gallon of Slurpee!

[mrogowski 6]

So here are some results:

EDIT: Double-checked my measurements - new volume posted

First test box was a 130 litre (4.6 cubic feet) Sonosub with a 20Hz tuning. Tests were done near field (microphone 1 inch from driver and port). Yellow is the driver output; green is the port:

As you can see, there is some pretty good output down low. Once you factor in room gain, output in the nether regions should be quite audible. Listening to the Sonosub, we found that the driver sounded quite good up to 120Hz.

Here is the impedance curve:

[mpimm 0]

I know what I want for christmas

[Puggsley456 0]

Man....we sure got that thing movin!

In car this thing should be scarrryyy!

[mrogowski 6]

Next up, we have a 90 litre (3.2 cube) enclosure tuned to 29Hz.

Here's a quick shot of Mr. Frankenbox:

Once again, the frequency response is done near field. The driver response is yellow; the port output is green:

Looking at the port curve, it appears like the mic is picking up some info from the driver as well. To verify this, I shoved the mic inside the port, but the response curve came out nearly identical.

Here is the impedance curve of the driver inside the box:

[ddeitz 0]

mark i see you have not learned your lesson about, do not put things that might break on top of big bertha there:P but nice box non the less

[roadkill103 0]

the box dimensions and port size would be nice to know

[mrogowski 6]

Ok, give me a bit of time and I'll come up with some.

[roadkill103 0]

thx that would be great , ill be running 4 ohm mono single driver, looking forward to losing the trunk

[Puggsley456 0]

Just a personal update here.

I had a 2.5 cube gross @ 27hz(3cubes is recommended) box sitting here and decided to give this driver a try in this box. Now granted I have more power on tap than this driver truely requires(1200rms).

I have yet to notice any decrease in output at any freq given the small nature of the box.

So for those who can sacrafice a bit of efficency, IMO you can use a slightly smaller box.

This thing wangs hard!

[Aaron Clinton 2,372]

Wait a minute, Mark has been telling me all this time that they wang chung

[porkchop 304]

hmmmmmmm, brb..............