Results 1 to 9 of 9

Thread: Le14a dcr parameters

  1. #1
    Senior Member bldozier's Avatar
    Join Date
    Jun 2014
    Location
    mount kisco
    Posts
    816

    Le14a dcr parameters

    Hello,
    I do not own the multimeter to test such a function, but a long time local stereo shop, I called was able to test the le14a for me free. it read 6.3,6.4 on the meter, after the test. I just wanted to confirm
    This is an acceptable dcr reading for this speaker, the lable it cam with is un readable while I bought it as an 8ohm I just wassent sure. its not blow, just needed surround, the worker at the store felt it was blown do tne the diminished lansaloy. he was saying the reading would not represent a actual figure it blow.

    Name:  20161102_124938.jpg
Views: 101
Size:  105.6 KB
    Name:  20161102_125030.jpg
Views: 99
Size:  92.4 KB

  2. #2
    Dang. Amateur speakerdave's Avatar
    Join Date
    May 2003
    Location
    Northern California
    Posts
    3,553
    Yeah, direct current resistance is one component of impedance, which in a voice coil experiencing signal, an alternating current, usually includes some inductive reactance and therefore usually will be a higher number.

    Your friendly tech was probably using the term "blown," usually meaning dead due to abuse, as a synonym for "no good" in general. The dcr number indicates the voice coil is good. As long as there are no other problems the woofer should work after a new surround is installed.
    "Audio is filled with dangerous amateurs." --- Tim de Paravicini

  3. #3
    Senior Member bldozier's Avatar
    Join Date
    Jun 2014
    Location
    mount kisco
    Posts
    816
    My second le14a arrived just a few minutes ago, from Nh.
    I've noticed the early alnico baskets are heavier then later serials my le10 alnico
    are the same way. the earlier mean newer serials are also taller. the basket itself to me feels
    lighter, but overall heavier dut to its magnet. the cone is also in nicer shape.

    I noticed a seem around the edge of the surround of the newer le14a as well, which I tried to document
    Name:  20161102_132252.jpg
Views: 95
Size:  68.2 KB
    Name:  20161102_132302.jpg
Views: 106
Size:  77.3 KB
    Name:  20161102_132829.jpg
Views: 93
Size:  60.5 KB
    Name:  20161102_132806.jpg
Views: 93
Size:  43.2 KB

    Anyhelp you can give me, on how to revive the baskets the aluminum has markings id like to restore back to the satin finish.

  4. #4
    Dang. Amateur speakerdave's Avatar
    Join Date
    May 2003
    Location
    Northern California
    Posts
    3,553
    Interesting observation about the differences in frame/motor depth. I've never noticed that. Both surrounds need to be replaced with new correct black foam surrounds.

    The black lines on the one frame face are paint, I think. I've never cleaned any, but I assume paint remover will take it off, although it may not be easy to recover the pure brushed aluminum look. Use that stuff in a well ventilated place, like a patio on a sunny afternoon.
    "Audio is filled with dangerous amateurs." --- Tim de Paravicini

  5. #5
    Senior Member Flodstroem's Avatar
    Join Date
    May 2004
    Location
    Norway
    Posts
    401
    The only tips I can give is when new surround is glued it should also be on the front of the cone (as the lancaloy was) otherwise
    the voice coil will not be centered in the magnetic gap.
    Flodstroem

  6. #6
    Senior Member bldozier's Avatar
    Join Date
    Jun 2014
    Location
    mount kisco
    Posts
    816
    Interesting, thank you.

  7. #7
    Senior Member Flodstroem's Avatar
    Join Date
    May 2004
    Location
    Norway
    Posts
    401
    Quote Originally Posted by bldozier View Post
    Anyhelp you can give me, on how to revive the baskets the aluminum has markings id like to restore back to the satin finish.
    Once I restored some LE8T baskets that looked even more worth than your LE14 baskets. I sanded them but not in a usual way you use the sandpaper. I turned the baskets upside down and pushed them on the sandpaper that was mounted to a very flat surface. I think I used the 40 grit but Im not sure about that.
    Regarding the sandpaper, I used that type of sandpaper that came from a sanding machine eg. a sanding belt. I cut it in the joint where the belt was glued. Then I had a loooong sanding paper for to push the basket on. You can try different grits depending on the original pattern on the baskets, something between 20-80 grit The clue here is to push the speaker in the same direction all the time so you dont get cross markings. For to move the speaker for to sand another area you have to lift the speaker and move it to another part for sanding keeping the same angel/direction
    Hope you understand my explanation
    Flodstroem

  8. #8
    Senior Member bldozier's Avatar
    Join Date
    Jun 2014
    Location
    mount kisco
    Posts
    816
    Name:  20161102_132302.jpg
Views: 76
Size:  77.3 KB

    Name:  20161104_102229.jpg
Views: 98
Size:  55.0 KB


    This is the 100grit. upon finishing I may drop down to 80/60

  9. #9
    Senior Member Flodstroem's Avatar
    Join Date
    May 2004
    Location
    Norway
    Posts
    401
    Wow, look at that
    I think the 60 grit will be fine (I think its closest to the original). You also had to finish with som type of thin varnish for to protect it from debris, oxidation, corrosion etc............
    Looks fine so far.......
    Flodstroem

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 604-8k parameters
    By redpulse in forum Lansing Product DIY Forum
    Replies: 1
    Last Post: 09-28-2009, 10:29 AM
  2. JBL 123-A1 TS parameters
    By AlexanderS in forum Lansing Product Technical Help
    Replies: 13
    Last Post: 04-10-2009, 10:25 AM
  3. LE5-9 parameters?
    By Immanuel in forum Lansing Product Technical Help
    Replies: 8
    Last Post: 02-23-2009, 10:03 PM
  4. old speaker parameters vs. Thiele-Small parameters
    By Joao in forum General Audio Discussion
    Replies: 9
    Last Post: 08-16-2006, 09:22 AM
  5. 121 ts parameters
    By hector.murray in forum Lansing Product Technical Help
    Replies: 0
    Last Post: 07-03-2005, 10:53 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •