rosey1968 Posted November 6, 2016 Share Posted November 6, 2016 Check out this modification: http://kansascity.craigslist.org/ele/5860760694.html Is he on to something here with the reinforcement modification?? Quote Link to comment Share on other sites More sharing options...
SWL Posted November 6, 2016 Share Posted November 6, 2016 I don't know but it doesn't make much sense to me. These cabs weren't designed to have added insulation and attaching additional wood on the outside of the cabinet without any additional bracing on the inside seems like a waste of time.Sent from my SM-G920R4 using Tapatalk Quote Link to comment Share on other sites More sharing options...
dtr20 Posted November 7, 2016 Share Posted November 7, 2016 Depending on when these were made, they may have additional bracing inside. I've seen 2 different style klf30s. The original had barely any bracing and very little glue, the second style had bracing and a ton of glue. Quote Link to comment Share on other sites More sharing options...
wvu80 Posted November 7, 2016 Share Posted November 7, 2016 11 minutes ago, dtr20 said: The original had barely any bracing and very little glue, the second style had bracing and a ton of glue. Interesting. I've heard of the first style, but not of the second. Quote Link to comment Share on other sites More sharing options...
SWL Posted November 7, 2016 Share Posted November 7, 2016 Interesting. I've heard of the first style, but not of the second.Same here.Sent from my SM-G920R4 using Tapatalk Quote Link to comment Share on other sites More sharing options...
dtr20 Posted November 7, 2016 Share Posted November 7, 2016 Yea, apparently to fix the front and back panel issue, they decided to use a ton more glue not a different kind. Quote Link to comment Share on other sites More sharing options...
dtr20 Posted November 7, 2016 Share Posted November 7, 2016 The insulation was setup differently as well Quote Link to comment Share on other sites More sharing options...
pzannucci Posted November 8, 2016 Share Posted November 8, 2016 Depending on the amplifier, the extra insulation in the box can be helpful. I have both added additional insulation and bracing. It will help slightly with some of the bloat that may be heard in certain areas of the frequency response. As far as the side panels on those speakers, it will help a little. It would have been better if you wrapped the whole speaker instead of just the bottoms. Also the four screws on the woofers is not really a good mounting scheme. All eight should be used on the woofers (drill out the other 4 holes as I have done on a set of KLF-20 woofers) and use better screws. rosey1968, the mods on those don't push it to the $1500 price range but if you have a set of KLF-30s, any tightening of the cabinet or components is worthwhile, even for your KLF-20s. If you modify a cabinet such as here, add some space. KLF-20 woofers are very happy in 5-5.5 cu ft. Quote Link to comment Share on other sites More sharing options...
CANT Posted November 29, 2016 Share Posted November 29, 2016 It's a nice visual mod? Quote Link to comment Share on other sites More sharing options...
Mighty Favog Posted December 4, 2016 Share Posted December 4, 2016 Did this to a pair of Cornwalls only on the the backs. Before I put on an extra layer of 3/4" Birch they would vibrate pretty much from the internal pressures of the woofer. After they were attached to the removable back panels (screws and glue) they are nearly dead still. Yes, the bass output has improved quite a bit..... Quote Link to comment Share on other sites More sharing options...
avguytx Posted December 4, 2016 Share Posted December 4, 2016 Maybe he was going for the AR9/90 look. Quote Link to comment Share on other sites More sharing options...
mustang guy Posted December 5, 2016 Share Posted December 5, 2016 It is a nice look with likely a higher WAF, possible resonance improvements aside. Quote Link to comment Share on other sites More sharing options...
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