The Othorn tapped horn

[weltersys]

I have another good contender my TH-1819 vs Othorn

Zivko,

Goes lower, but much bigger than the Othhorn.
Can't cheat Hoffman's Iron Law, but we keep trying .

Art

 

[sine143]

and considering the power handling and xmax of the SW152 in the othorn, I'd expect the driver in the TH1819 to run of of gas quicker (18 with 12.9mm xmax)

I cant find the thread with a search, do you have a link?

 

[chrapladm]

http://www.diyaudio.com/forums/subwoofers/210339-tapped-horn-th-121-build-5.html

 

[sine143]

thanks for the link. Looks like this is the "sim" output. the th1819 runs out of xmax 6db earlier (in passband).

 

[Osse]

Thank you Art and Josh! It's sad that bfm doesn't declare distortion values... How much distortion does a flh design actually filter out, is there a general rule for a well designed flh cab? Has anybody done any distortion measurements of bfm cabs at full throttle?

 

[Osse]

I've seen the t48 measurements floating around on here,but the distortion part of it is hard to read( there are no reference points on the vertical axis for distortion, only spl afaik)

 

[weltersys]

This chart can be used to convert SPL deviation into distortion percentage:

 

[blossom]

Would I be correct then that these would be what’s required to reproduce this track and that Xoc1's th18 would fall short here?

 

[NEO Dan]

IMO yes

 

[kees52]

Hi There

I was a time ago busy with a tapped horn, here the problem was the cone correction, how do you do this here, I did see U use vtc and atc, how do I find the right numbers for a 12 inch woofer if I now vas and Sd.

thanks

 

[shello79]

Any feedback from othorn builders/users?

 

[chrapladm]

Funny that this thread just popped up again. I just ordered a BC 21". Finally after a few years went by. Should be here in a few months.

 

[kees52]

Funny that this thread just popped up again. I just ordered a BC 21". Finally after a few years went by. Should be here in a few months.

Wat will you do with it blow your house? haha.

nice a 21 inch woofer in a tapped horn.

 

[shello79]

From what i understand this sub will rock you,your house,your neighbours house,your neighbours neighbours house ect.......... This sub is a beast.

 

[chrapladm]

I will be using a pair of these for outdoor cinema. And will most likely use these in a gymnasium. I dont have the room inside. Although I will listen to one of them in my room for fun.

 

[kees52]

I will be using a pair of these for outdoor cinema. And will most likely use these in a gymnasium. I dont have the room inside. Although I will listen to one of them in my room for fun.

Even that gymnasium wil rock appart.

regards

 

[chrapladm]

Well there are a few people that use these subs in there HT rooms. I myself just want to share a great audio experience with others. And I figured it would be easier to enjoy while watching a movie. I wont be pushing these very hard if ever.

Most of the time I will have be showing children movies with my 2 daughters. Especially high bass content movies like some of the newer animated movies of today. Either way it has been a long very very slow process. And I have a long long way to go.

 

[SonicSoundVW]

How would somebody go about getting the plans for the othorn? I am quite interested, altho i think its going to take a lot of time and patience on my part. Looks pretty difficult to build. Ive seen somewhere before that somebody was using a CNC router to cut the panels. Is he still around?

 

[chrapladm]

Have you built a TH before?

Its not that hard. PL glue works wonders also. You can PM Ricci for plans. Its ow I got mine years ago.

 

[SonicSoundVW]

Have you built a TH before?

Its not that hard. PL glue works wonders also. You can PM Ricci for plans. Its ow I got mine years ago.

No i have not, but there is a first time for everything! I would probably build 2 and would be using them for an EDM rig. Im thinking they would perform beyond expectations? I currently have 2 b-52 PA18s (celestial FTR18-4080F) powered by a crown xti 2002 @ 4 ohm bridged (2000W). Well.... they just don't cut it for Electronic music, they do however sound great with any other genera. What power ranges or amplifiers are suggested to power 2 othorns? I asked this is my own post but i figured it wouldn't hurt here. I haven't seen anybody ask. Im just about to PM the person who holds the plans.