Originally Posted by Father Yuli

there really is no need to turn this thread into a stain so i wont argue anymore.

all i wanted to say is that we had tried tapped horns extensivlly, it was a revolutionary idea for us back in the day. sure they sound loud as hell in a big room.

but when placed into a vehicle and powered by thousands of watts, they produced exactly the same results as a regular ported box.

there is a ton of info on these types of enclosures online, i've read it all and tried most of the designs and concepts out there...........still, results are same as a ported box.

yes, you can produce a half decent number with little power while using one of these concepts.............the bigger picture is shown when you increase power significantly, however.

i encourage you to come out to a spl competition or a test session to see how things are done, maybe it will refine your understanding of how it actually works or maybe you can give us some useful ideas.

Originally Posted by Mach5

I don't recall that score... maybe was on the old meter (10dB from the current one)?

I built something like this:



Is that a tapped horn?

Don't get me wrong, Danley is a genius and I'm a big fan, but I think a car should not be considered free field + low frequency gain, yet a box inside a box and this might change the design of the box.

Originally Posted by Mach5

I don't recall that score... maybe was on the old meter (10dB from the current one)?

I built something like this:



Is that a tapped horn?

Don't get me wrong, Danley is a genius and I'm a big fan, but I think a car should not be considered free field + low frequency gain, yet a box inside a box and this might change the design of the box.

Originally Posted by Father Yuli

so if only you know how to make one (even though there is a million of people who have built them) why would you suggest to anyone such concept that they will never be able to grasp or complete in real life? why bother?

fact is, you arent the only one who knows how to build this stuff. another fact is that many have tried in a car and another fact is that results are same as a ported box/wall.

sure, tapped horn is "more sound", that doesnt mean it's more SPL

you need to get off this field/almost field none sense, no one really asked about that.

i know exaclty who u are and i heard about your "148 db" box. the only thing i don't know is what peice of measuring equipment you used to get the result 5 years ago?


and still, you never told us what happens in such box when you use 5,000 watts instead of 500 watts. will you answer or should someone else ask?

if I am wrong, why oh why hasnt the magical box of tapped horn exploded onto the SPL scene?

admit it, even though u might think u know SPL u really have no idea. and by spl i mean in a car's cabin. not in an open field or outter space.

Originally Posted by Father Yuli

we did this a long time ago. we tried a trapped horn with 2 12's and 4 12's.

ask Cecco or the perfect tones guys, Justin specifically, he was crazy about all these horn and bandpass type enclosures.

some guys in the US tried it as well, that is where we got the idea from. they said you will get the same result, we didnt believe it. Then we tried it on our own and after a ton of work guess what we got..........the same result as a regular ported box.

we tried this in a 4door suv and a family minivan.

i agree, a ported box in a hatch car is a trapped horn in itself.

but over the years i've grown to belive that you are better off putting in your efforts in trying to utilize the pressure inside the box vs. trying to do anything to the other side of the cone. i dont believe that trying to increase the pressure inside the box is it.

once me and Les tried sorts of loading walls to utilize the other side of the cone, the results were either worse or same as a regular ported box.

i think there are many other variables that get over looked with respect to SPL when people begin to live in theoretical believes. i believe the answer lies INSIDE the box, that is the last and only place we have control over, at least to some degree.

the theory works well in an exteme car where the whole car is the box. this doesnt work in SS or Street however.

Mr. dogbaker, tell us more about standing waves and how to overcome the phenomenon in order to increase SPL. This is what I want to know.

Originally Posted by Mach5

I didnt find any of his boxes, can you put a pic in here? What I'm doing inside my van is similar to his army box, the only problem is that I'm using 18"s and the closer ones from the back will not be decently aligned.

By the way, what is your idea of size for that triangular piece on the back, the wave guide?