VTXHOGG Posted October 16, 2008 Share Posted October 16, 2008 Putting new Diaphrams in my K-77 that were fried in my 85' LaScallas. So if someone know the cross over point and slope; please post. Quote Link to comment Share on other sites More sharing options...
Klipsch Employees Trey Cannon Posted October 16, 2008 Klipsch Employees Share Posted October 16, 2008 It will depend on the xover layout you plan to use. AA network is 6k and 12db/oct Quote Link to comment Share on other sites More sharing options...
VTXHOGG Posted October 16, 2008 Author Share Posted October 16, 2008 I will be using the stock Xover, only repairing the speakers and wanted to test the crossover with a scope and signal generator. Is 6k and 12db/octQuote what I have? Quote Link to comment Share on other sites More sharing options...
ricktate Posted October 16, 2008 Share Posted October 16, 2008 If you have not got diaphrams yet i would get Bob Crites tweeters and lower the crossover point with his mod. it will sound better i think.Rick Quote Link to comment Share on other sites More sharing options...
BEC Posted October 16, 2008 Share Posted October 16, 2008 If these are 1985 Lascalas, you should have the type AL crossover. Best thing to do is replace them with better crossovers, but if you want to try repairing them, look at the thread below. Pay particular attention to the posts by djk. He is exactly right. I have seen the AL crossovers become tweeter blowing machines many times since the discussion we had back in 2004. http://forums.klipsch.com/forums/t/45828.aspx?PageIndex=1 Bob Crites Quote Link to comment Share on other sites More sharing options...
VTXHOGG Posted October 16, 2008 Author Share Posted October 16, 2008 Hmmm.... different cross over points may be an option in the future, but for this weekend I just want to test the exsisting Xover point against the stock spec's. I bought these speakers asis for $75 each and don't want the fry new diaphrams the first time I crank them. Somebody know the spec I'm looking for? Thanks.... Quote Link to comment Share on other sites More sharing options...
Klipsch Employees Trey Cannon Posted October 16, 2008 Klipsch Employees Share Posted October 16, 2008 Here is the schematic of the network you should have. AL.pdf Quote Link to comment Share on other sites More sharing options...
VTXHOGG Posted October 17, 2008 Author Share Posted October 17, 2008 Thanks, Trey and all, By the schematic it's looks like a 4th order, I guess that I need to get my Sci-calcuator out to get the spec's I want. Interesting the voltage limit network... two Zeners... I'll check those to. Quote Link to comment Share on other sites More sharing options...
djk Posted October 17, 2008 Share Posted October 17, 2008 It's a third order Chebychev with a zero added to make it an elliptical (Cauer). Without the zero it should have an 18dB slope, with the zero it should drop 50dB in about half an octave. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.