Jump to content

crossovers AL versus the others


Reggie1349

Recommended Posts

Of the three types mentioned, the AA, AL and AL-3, the AA is the oldest design and very popular even today.  The AL is not considered by most to be a good crossover.  It is overly complex and as they age, develop bad solder joints and are rather notorious for blowing tweeters because of bad connections.  The AL-3 addressed the voicing problems of the previous AL and AL-2 and is considered by most to be a good crossover.

 

Bob Crites

  • Like 4
  • Thanks 1
Link to comment
Share on other sites

17 hours ago, Dave A said:

Bob,

  What causes solder joints to go bad? I have seen plenty that were not good but they had continuity.

We used to discuss this a lot back in the olden days concerning the AL crossovers.  Forum Member DJK has a lot of hands on experience with those.  Here is what he said is usually the cause of the AL blowing tweeters.  I think he suggested in another post that the iron the factory used was too small for some of the joints on the AL.

 

 

  • Like 1
Link to comment
Share on other sites

28 minutes ago, BEC said:

think he suggested in another post that the iron the factory used was too small for some of the joints on the AL.

That I can believe as a lot of those joints show incomplete solder flow. It is one of the biggest problems in Tig welding too for beginners or those who just don't have the aptitude for welding. Not enough heat causes just as many problems as too much heat.

Link to comment
Share on other sites

  From my experience too hot a tip  can be compensated with reduced contact time. Too low just results in cooking the components. 

  I use three irons with building. A 40 watt for the big stuff, a 25 watt for normal, and a 12 watt for the delicate items. 

  Always use Kester 63/37 for everything.

  • Like 2
Link to comment
Share on other sites

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...