Single sheet TH challenge

[runrod1948]

On the contrary, thank you!! I think you've single handedly managed to run the 3015LF's out of stock. :-)

[Djim]

You guys are concentrating on Xmax way to much. You can't compare drivers just by their specs of Xmax sine each brand uses their own method of calculating Xmax. Even worse, some brands use different methods for every range they have got!

In case of the SS15 with its 1/3 wavelength of 47-50HZ, which is above the Fs of the driver (44Hz), in my opinion that means its excursion behaviour is similar to bass reflex (or 6th order bandpass types if you want to be more precise). By the time you run out of Xmax your driver probably suffers from more then 2,5dB power/dynamic compression so you almost need twice the power to reach the calculated Xmax from HornResp.

And congrats for your 1000 posts Jbell, knowing the end is not even near!

[wg_ski]

Originally Posted by jbell

run the hornresp for the kappa pro 15lf... it runs lower xmax while producing within a db of the same sound. It stays within xmax at 63v

Xlim is higher on the KP15LF2. Undistorted output is a dB higher with the neo version, but the damage point is about the same. The LF2 actually models better in front loaders than the 3015 in terms of response smoothness.

But looking ahead, I'll probably be buying 15TBX100's which are less than $300 and model better in most any type of enclosure - front loaded, tapped, bandpass, or conventional. At least until neodymium prices get reasonable again. That may or may not ever happen.

[4pyros]

I just wanted to be the 1000th post.... never thought this thread would go this far. Thanks all.

We owe it all to you!!!

[Carl_Huff]

I know they are rare and pricey right now so I thought that I'd offer anyone interested a 'new in box' 3015LF left over from a recent project if anyone is interested. I'd let it go for $275 plus actual cost to ship. Message me if you are interested.

[m R g S r]

^I just got mine nib from neo_dan for 195 shipped and they aren't rare they're back in stock in many places for less. Just FYI

[Carl_Huff]

Originally Posted by m R g S r

^I just got mine nib from neo_dan for 195 shipped and they aren't rare they're back in stock in many places for less. Just FYI

In that case if somebody gives me $195 I'd take it. I'm cleaning out my shop!

[Dave NonZero]

Originally Posted by tb46

Hi Dave NonZero,

Here is the 18Sound 15NLW9400 stuffed into the Hornresp input from the SS15(3015LF). Maybe you can optimize the design from there.

Regards,

Cheers for that! I've managed to work out how to replicate it now so i can have a fiddle. do you think that much difference in the sims will be noticeable in the realworld?

[FlipC]

Dave - How much difference and What difference.
If it is on the upper band. Probably none at all.

Everyone else
I do not get it. This thread is about a single thing. An enclosure made from a single sheet of ply. Yet SO many people post things off this topic. There is only one other single sheet listed in here and that is the ttqwp (is that correct? LOL)
Go look at ScreamerUSA's FurySub and the Apache MK2.
There are others. ALL of which are relatively the same.

[Dave NonZero]

In Tb46s post #997 I think, the graphs show the comparison between the 18sound and the 3015lf. It's a few db down at 60 but has a bit more extension. I'll just have to build one and test it I suppose.