[Bbsrt8]

I have a pair of klipschorns I am thinking of modifying. The first modification I would like to do is to enclose the backs. I do not have an ideal spot to have them sitting flush into corners. Does anyone have suggestions about the best method or materials to use?
I also would like to know of any good mods to do inside the cabinets before sealing them up.

Thanks,
Roy

[FullRangeMan]

Dont do it, it will ruin this nice vintage speaker IMO. Instead buy a RF82/83 used or other model. But if you google Enclosing Klipschorns there is various articles about this mod.

You could paint mate black inside for less resonance.

[opnly bafld]

Can you use a false wall to get a corner?

It is a popular way to create a corner where there is none.

[aldcoll]

First of all have you tried them in different locations like close to the corner and angled?   

Those speakers use the back as a tuned port pretty much like the opening in the front on their sister cabinets.  Closing that port will change the woofer action and response.  You could try blocking the port with some pillow or dense foam or a plastic bag with the foam inside to seal the opening. 

I have a pair of Electro Voice K Horns and am playing with them also.  And for my ear they need the port and some wall close by.

As Opnly bafled a false wall test of a piece of plywood or heavy cardboard set up in a temporary setting will also help with some of your thoughts.

And if you seal off the back will there be a way to service the components?

IF you look there is a extensive Klipsch owners groups out there and they have cover this topic I bet.


Alan

[MarvinTheMartian]

Send your Khorn no-corner predicament to our local Circle Pro,
I'm positive Greg has the experience and your answer. 

https://www.audiocircle.com/index.php?board=51.0
https://voltiaudio.com/
https://www.klipschupgrades.com/

Shawn

[MarvinTheMartian]

And let's see what sort of room you have to work with
"I do not have an ideal spot to have them sitting flush into corners" is kind of vague.
A floorplan drawing or at least a couple of room pic's would be a useful  start.

Shawn

[Bbsrt8]

I'm working on my house and don't have a good picture of the room, although it is not a great room for my stereo. I'll post a picture when it's all back together.

[Letitroll98]

So I went to the Internet to see what's being said about enclosing K-horns and although it's popular because they're so hard to find the right room for them in modern architecture, it can't be done easily if you want to do it correctly.  The results are very mixed with the recreation of the 48" partition wall being the best.  Simply enclosing the back doesn't work without serious frequency response errors.  The 60th Anniversary Edition does enclose the rear of the speaker, but I imagine with crossover and/or driver modification.  There are easily dozens of sites reporting on this mod to greater or lessor effect.  But the one I found most interesting wasn't a enclosing the rear article, but made some great comments about that and about restoring K-horns from Volti Audio.

https://www.klipschupgrades.com/vittoriokhornrestoration.shtml

[FullRangeMan]

A few weeks a go a AC member informed it need a 2.8m tall ceiling to works.

[toocool4]

I hope this doesn’t upset anyone, but if the speakers don’t work well in your room, why not sell them or trade them in for something that does?

[Letitroll98]

I hope this doesn’t upset anyone, but if the speakers don’t work well in your room, why not sell them or trade them in for something that does?

That's what I did.  I had Allison IIIs, another corner speaker, that sounded fabulous in my 1920s traditional house in Pittsburgh.  But they never worked in my modem home when I moved to Philadelphia.  So I gifted them to my son and bought Snell Type E Series IV that could be placed into the room.  For the few members who don't know the corner placement gives a 6db boost in the bass that's hard to replicate with EQ and virtually impossible with plywood panels screwed to the back of the speaker.