The Othorn tapped horn

[MrAndersson]

Hello everyone, thanks for a great forum and a special thanks to Josh for the Othorn.
I've been reading probably most inputs about the Othorn and I would be very happy if you would e-mail me the CNC file and PDF cutlist etc. speakers@live.se
Would a Powersoft k20 in stereo mode have the whisky to feed 4 Othorns? 2 ohms/channel.

Thanks

 

[sine143]

yes.

feed it with at least 20a 220v service though (It *will* work on 120 but do 220 and thank me later).

 

[Pabesco]

Hello. I have a few pics to post but can't remember how to do so.

 

[USRFobiwan]

Hello. I have a few pics to post but can't remember how to do so.

when replying, click the manage attachments button. upload your images, and then click the paperclip icon.

 

[Josh Ricci]

I now have plans downloadable at the DB forum. Free to anyone. (Othorn, Gjallarhorn, Skhorn)

 

[NEO Dan]

I now have plans downloadable at the DB forum. Free to anyone. (Othorn, Gjallarhorn, Skhorn)

 

[Sabbelbacke]

Josh - thank you! What a generous and wonderfull contribution to the DIY community!!

 

[Pabesco]

Good day to all.
Can anyone assist with the best frequency to set my driverack to for two of the othorn please. Thanks.

 

[RMS65]

Hallo!
I'm new to the forum. Thanks to the administrator for signing up.
I made two TH 18. I used Faith pro 18xl1500 8ohm. Feelings are very good. They will be used to perform live music in the open air or in larger halls.

 

[Josh Ricci]

Good day to all.
Can anyone assist with the best frequency to set my driverack to for two of the othorn please. Thanks.

What drivers are you using in them?

Are you asking what high pass filter to use, or what low pass filter, or what EQ should be used?

 

[Pabesco]

Hi. I'm using the b&c 21sw152-4
I'm looking for all of the things you just asked.
High pass. Low pass and EQ points. Also what amps do you find work better with these with the recommended drivers?
Thanks.

 

[Josh Ricci]

Hi. I'm using the b&c 21sw152-4
I'm looking for all of the things you just asked.
High pass. Low pass and EQ points. Also what amps do you find work better with these with the recommended drivers?
Thanks.

Ok.
I always used a high pass filter that was a 18dB octave Butterworth at about 23Hz. Low pass depends on preference and the mains used with it but a 24dB/Octave Butterworth or LR in the range of 70-90Hz works well as a start. Again this might be adjusted according to your tastes. The cab is useful with just the high and low pass filters in many cases. If you want to further tweak the sound try these filters together as a start. Adjust to taste.

Filter at 107Hz / Q10.0 / -8dB cut
Filter at 165Hz / Q10.0 / -8dB cut
Filter at 72Hz / Q2.5 / 2dB boost

Amplifier power recommendation is between 1000 to 4000w per cab. 2500 to 3000w rated amplifiers seem to be about the sweet spot. a 4000w rated amplifier is beginning to get into a dangerous place for the driver if driven hard enough over a long time with compressed material. Limit voltage to 120 to 125v ( About 170v if it is a peak setting.) If there is a long term power limiter available this can be set to a lower voltage if the material is extremely demanding for long periods like EDM. As always I encourage experimentation.

I hope this helps.

 

[Pabesco]

Good day. Thank you very much for the info josh. Once again extremely helpful in pointing me in the right direction.
I ordered a sound barrier 8000 that his the exact same thing as the lad 14000 with a few tweaks. I think this would be enough to drive both cabs I have.
Thanks again.

 

[Nocturnal92]

18 Sound 21NLW9601C CARBON CONE 1800watt 4ohm Extended LF Neodymium Driver

has anyone modeled these drivers?

 

[Josh Ricci]

18 Sound 21NLW9601C CARBON CONE 1800watt 4ohm Extended LF Neodymium Driver

has anyone modeled these drivers?

It looks good to me. Very comparable to the 21SW152. Perhaps a bit better response shape even.

 

[Nocturnal92]

Im going to use the regular 21nlw9601 in mine just after reading up on these horns was thinking the carbon cone may be more suited for dealing with the high pressure

 

[Pabesco]

Good day to all. Just a quick question.
Has anyone used two of these othorns along with two th18s ?
I have this combination and will tone them differently crossover wise but would like to know
If I would need to delay the othorns due to the longer path in the horn. Thank you for any info any of you can give.

 

[CRESCENDO]

Good day to all. Just a quick question.
Has anyone used two of these othorns along with two th18s ?
I have this combination and will tone them differently crossover wise but would like to know
If I would need to delay the othorns due to the longer path in the horn. Thank you for any info any of you can give.

If anything, you'd probably be delaying the TH-18s, as the Othorn has a longer path length of the two.

 

[lawbadman]

Hello all,

Is there a version of the Othorn optimised for 18 inch woofers?

 

[DrDrowzy]

disregard, found a link to the downloadable plans (=