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Old 27th January 2013, 08:58 AM   #1
Sadoinc is offline Sadoinc  Norway
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Default K-horn plans

Hi,
I am new to this forum. I`m planning to build a pair of K-horns.
Is there anybody out there having a set of Speakerlab K-horn plans?
I`ll be happy to pay copy and mail costs
Rgds
Nils
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Old 27th January 2013, 09:43 AM   #2
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I got everything one would ever need to build Khorns. pm me with your mail address and you got them all

there is also some other nice images of cinstruction which will help you because Khorns have lots of angles. don't forget they are hard to build. made up your mind before waging the war becasue you may explode all the workshop with some C-4 in the middle of the job


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Old 27th January 2013, 04:37 PM   #3
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Why don't you join up at the Klipsch forum, it is a great place the people are top notch and you will find a good number of builder there who you can talk to.
The biggest problem with a Khorn is its extension (bass horn) that's why it is a three way it had been intended to be a two way but PWK simply could not make that happen and that is why the Jubilee was born to realize the dream of a large two way. Back to the Khorn as far as I know if you load it with an Altec 515 and you optimize the throat you can make the Khorn play past 450Hz. so a two way is possible with the right woofer and the right matching horn like some of the early D.B.Keele Electrovoice designs. What ever mid horn that you use the K400 probably not your best pic. But why not ask the guys who have done what you are planning to do for yourself? Best regards Moray James.

PS: if you have not looked at the Jubilee I think that you should as it is a better loudspeaker and it is a much easier build and it does not necessarily need a corner.
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Old 27th January 2013, 04:48 PM   #4
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Originally Posted by moray james View Post
Why don't you join up at the Klipsch forum, it is a great place the people are top notch and you will find a good number of builder there who you can talk to.
The biggest problem with a Khorn is its extension (bass horn) that's why it is a three way it had been intended to be a two way but PWK simply could not make that happen and that is why the Jubilee was born to realize the dream of a large two way. Back to the Khorn as far as I know if you load it with an Altec 515 and you optimize the throat you can make the Khorn play past 450Hz. so a two way is possible with the right woofer and the right matching horn like some of the early D.B.Keele Electrovoice designs. What ever mid horn that you use the K400 probably not your best pic. But why not ask the guys who have done what you are planning to do for yourself? Best regards Moray James.

PS: if you have not looked at the Jubilee I think that you should as it is a better loudspeaker and it is a much easier build and it does not necessarily need a corner.
+1

I have to add:

  • Khorns use corners as a horn to increase the total SPL. put them in the middle of nowhere far from corners and you probably won't get that 104db/w/m Paul W.K. claimed (I'm talking about woofer only)
  • Khorns could be used is a real 2-way design if you use Radian 950PB, Faital FH200 or similar nice CD which do from 400hz and up (with proper wave guide)
  • go for ported La Scala which goes down to 30hz or so as it's much easier to build and doesn't need a corner. I've build Scala myself and it's not as neck-breaking as Khorn is. I have no idea about Jubliee.
  • Khorns might play down to 32-34hz or so, but they will rock your heart as you'll feel big drum is just in front of you. I don't know maybe it's Paul's soul doing something inside that chamber of Khorn
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Old 27th January 2013, 05:00 PM   #5
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Quote:
Originally Posted by oldies View Post
I got everything one would ever need to build Khorns.

don't forget they are hard to build. made up your mind before waging the war becasue you may explode all the workshop with some C-4 in the middle of the job
Great work there!!!!

But save the C4 for something more important - with all of that lumber in there all you really need to do iz light a match to it should you feel the need......
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Old 27th January 2013, 05:22 PM   #6
Sadoinc is offline Sadoinc  Norway
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Thanks guys,
I`m planning to use them as a 3way configuration, and I`ve got corners to put them in.
The Jubilee might be an option, but if I remember right, it`s a lot bigger than the K-horn.
I think that I will use Crites woofers, Atlas PD -5VH driver. Not sure about the tweeters yet.
You folks have to pardon my English, I`m a Norwegian and my written English is not that god.
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Old 27th January 2013, 05:35 PM   #7
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Originally Posted by Sadoinc View Post
Thanks guys,
I`m planning to use them as a 3way configuration, and I`ve got corners to put them in.
The Jubilee might be an option, but if I remember right, it`s a lot bigger than the K-horn.
I think that I will use Crites woofers, Atlas PD -5VH driver. Not sure about the tweeters yet.
You folks have to pardon my English, I`m a Norwegian and my written English is not that god.
Yes Jubliee and Khorn are like father and son
I suggest to go for new CDs instead of that Atlas old-tech one. I'm not saying it's bad at all but you can have better CDs for the same price. Selenium 2"drivers are also an option.
abut tweeter, everybody keep saying "CT-125 is an upgrade over K-77" but my experience is contrary of these claims I would use Beyma CP25 or some Selenium or BMS with proper horn
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Old 27th January 2013, 07:43 PM   #8
DrBoar is offline DrBoar  Sweden
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The Klipsch horn is fantastic, I had a DIY pair years ago. Not only need they proper corners the walls also have to be rigid enough. I moved to an apartment wiith a corner were the outer wall was concrete but the backwall flimsy gyprock. I lost 6-8 dB below 80 Hz, then I moved to no proper corners at all and the horns were scrapped. The horns do not go that deep but it does not matter, they have that totaly effortless presentation were you feel that there is endless reserves on tap. The do have slam and inpact in spades.

Take your time and find metric drawings preferably with all material in 19 mm sheets. I have seen some with parts made in 12mm and that is on the thin side. If you go with thin ones like
Download Section
You can use "mjuk masonite" or " asfaboard" on the other side as damping with very little increase in weight. Asfalt plate på din Byggmax!
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Old 27th January 2013, 08:46 PM   #9
Sadoinc is offline Sadoinc  Norway
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Quote:
Originally Posted by DrBoar View Post
The Klipsch horn is fantastic, I had a DIY pair years ago. Not only need they proper corners the walls also have to be rigid enough. I moved to an apartment wiith a corner were the outer wall was concrete but the backwall flimsy gyprock. I lost 6-8 dB below 80 Hz, then I moved to no proper corners at all and the horns were scrapped. The horns do not go that deep but it does not matter, they have that totaly effortless presentation were you feel that there is endless reserves on tap. The do have slam and inpact in spades.

Take your time and find metric drawings preferably with all material in 19 mm sheets. I have seen some with parts made in 12mm and that is on the thin side. If you go with thin ones like
Download Section
You can use "mjuk masonite" or " asfaboard" on the other side as damping with very little increase in weight. Asfalt plate på din Byggmax!
Yes, I've seen those drawings and I`ve got a copy of this also
Hornloudspeaker Magazine: Comprehensive list of Klipsch plans, vintage/heritage line

I'm a little unsure of what I choose, therefore I will take a look at the Seakerlab plans too.
I agree with you that metric drawings with 19 mm plywood would be the best.
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Old 28th January 2013, 05:37 AM   #10
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perhaps you misunderstand me. The reason a Khorn is a three way is because PWK could not get the bass horn to run up high enough to mate to available horns of the day. A Khorn will barely do 400 Hz and it does that poorly it only gets up to about 300 Hs with any kind of reasonable ability it only gets down to 39 Hz. I don't believe that thicker material will buy you much not that I think it is a bad idea but it will not change the response at all. A large Cd horn which can get down to 300 Hz would be a big help and you can choose what ever tweeter you happen to like mini DSP will make things a lot easier. There are those who have used direct radiators with high efficiency to replace the Khorn and been very pleased with the results at low frequencies it is a sealed box anyway. A LaScala won't get up any higher than a Khorn will you will still need a very large horn or a mid bass horn. A LaScala will get up as high and it will sound a little better as it has fewer bends in the path. That would be a bonus. Direct radiators better again. Run some simulations with a 515 and I believe you will find it will do a far better job than just about anything else in a Khorn. Good luck and best regards Moray James.
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