boom3 Posted February 4, 2022 Share Posted February 4, 2022 A friend just bought pair of 86 Klipschorns. He wants to enclose the backs. Does anyone have the dimensions of the boards required? TIA Quote Link to comment Share on other sites More sharing options...
001 Posted February 4, 2022 Share Posted February 4, 2022 can you clarify why he wants to enclose the backs? if he has decent corners in the room there is no reason or benefit to enclose the backs. & if he doesnt have good corners the next best option is to build false corners based on PWKs plans. Quote Link to comment Share on other sites More sharing options...
davis419b Posted February 4, 2022 Share Posted February 4, 2022 Sometimes in a smaller room you have to toe them out to get them to image correctly. To do this you must enclose the backs . 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted February 4, 2022 Share Posted February 4, 2022 On 2/4/2022 at 8:40 AM, boom3 said: A friend just bought pair of 86 Klipschorns. He wants to enclose the backs. Does anyone have the dimensions of the boards required? TIA Prior to enclosing the backs of the khorn you have to reinforce the bass bin to avoid vibrations , so very similar to a Jubilee 1)- remove the rear tail piece and add 3/4 inch braces under the older boards of the tail piece at the top -center and bottom , this will allow for the rear panel to screw in flush with the bass bin and to avoid screwing into or damaging the older braces of the tail piece - 2)- add 4 3/4 inch braces to both sides of the bass bins , 1 at the top , 1 at the bottom , 2 that are spaced at the center - the braces must leave a 3/4 inch space to allow the new 3/4 inch panels to fit flush between the bass bins panels and the rear panel . . Quote Link to comment Share on other sites More sharing options...
boom3 Posted February 4, 2022 Author Share Posted February 4, 2022 001 thanks, do you have any pictures of these braces? Yes, my friends living room is not optimal, so enclosing the backs is a must. Anyone have the dimensions required for these boards? Quote Link to comment Share on other sites More sharing options...
OO1 Posted February 4, 2022 Share Posted February 4, 2022 nope , nothing wrong in using thicker wood or stronger braces Quote Link to comment Share on other sites More sharing options...
kevinmi Posted February 4, 2022 Share Posted February 4, 2022 I enclosed the backs of my K-Horns about 10 years ago and it was one of the best decisions I ever made. I used 3/4 inch angle aluminum to mount my boards. I went with 1/2 inch plywood instead of 3/4 inch, and never had a vibration issue. 2 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted February 4, 2022 Share Posted February 4, 2022 6 minutes ago, kevinmi said: I enclosed the backs of my K-Horns about 10 years ago and it was one of the best decisions I ever made. I used 3/4 inch angle aluminum to mount my boards. I went with 1/2 inch plywood instead of 3/4 inch, and never had a vibration issue. khorns are MADE FROM 1/2 inch plywood, so without even going thicker there should be NO issue, right? 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted February 4, 2022 Share Posted February 4, 2022 On 2/4/2022 at 1:45 PM, boom3 said: pictures of these braces? Here is a picture of a wider rear brace , thickness 3/4 " minimum Quote Link to comment Share on other sites More sharing options...
davis419b Posted February 4, 2022 Share Posted February 4, 2022 This is all that is needed . Quote Link to comment Share on other sites More sharing options...
001 Posted February 5, 2022 Share Posted February 5, 2022 22 hours ago, boom3 said: 001 thanks, do you have any pictures of these braces? Yes, my friends living room is not optimal, so enclosing the backs is a must. Anyone have the dimensions required for these boards? depending on how bad the room corners are, you can also pivot/toe in the tops a small amount by removing the L brackets or wing nuts that attach the tops to the bass bins. enclosing the backs is an option but they wont have the same bass response of being sealed in full corners since they are designed to use the walls as part of the horn. Quote Link to comment Share on other sites More sharing options...
Klipsch Employees Chief bonehead Posted February 5, 2022 Klipsch Employees Share Posted February 5, 2022 20 hours ago, ClaudeJ1 said: khorns are MADE FROM 1/2 inch plywood, so without even going thicker there should be NO issue, right? Well that’s because of the complex nature of the back air chamber. If I was going to enclose the back of an older khorn, I would probably use 3/4” and brace it. That is a tall panel….. 4 2 Quote Link to comment Share on other sites More sharing options...
boom3 Posted February 6, 2022 Author Share Posted February 6, 2022 Thank you Roy! My friend says he is going to live with the un-enclosed versions for a while. He also has a Klipsch subwoofer (I don't know the model) so I think the bass performance will be fine. Quote Link to comment Share on other sites More sharing options...
davis419b Posted February 6, 2022 Share Posted February 6, 2022 great ! Quote Link to comment Share on other sites More sharing options...
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