Need Source for Altec Lansing Mid driver replacement

[GearHungry]

I have an older set of Altec Lansing computer speakers, with subwoofer. On one of the satellites, the mid-range speaker quit. I measured infinite resistance, no continuity between the speaker terminals (after disconnecting the tweeter leads), so I know it's the coil, and need to either get inside it to solder it back together, or buy a new speaker or two (just so they match).

I already tried prying the speaker apart to get to the coil, but it seems a pretty tight press fit, and I'm willing to give it up if I can just buy some/one.

The speaker in question is from an Altec Lansing ACS48 computer speaker system. The numbers on the back of the speaker itself are as follows:

A2156
4 ohm
980506

It's a 3" diameter cone.

Thanks for any responses.

[JBL 4645]

I’d have another go. I just looked at picture and it looks fairly simple item to disassemble.

[GearHungry]

I’d have another go. I just looked at picture and it looks fairly simple item to disassemble.

I'm not talking about the speaker enclosure, with the grill and all, that holds both the mid and the tweeter, but the speaker (component) itself. I've already taken apart the satellite enclosure and removed the speaker. That's how I found the model number and impedance rating of the mid speaker itself.

I'm thinking (though I've never tried this before) if I just pry the metal can apart, the is part of the speaker, not the cone part, but the metal can that holds the magnet/coil assembly, I could possibly find wherever it is that the coil has separated, or burnt open, and simply solder it together at that point, fixing the speaker. Then I would have to press the can back together, and solder the speaker leads back in parallel with the tweeter leads, onto the speaker cable that plugs into the other satellite. Of course, after prying the can apart, I might find the job impossible, or more difficult than it seems, as the coil wire may be too fine to deal with or re-solder. Not having done it before, at this point, it's all guesswork.

The easier choice would be to find a replacement component, the actual speaker, part no. A2156, or a satisfactory equivalent in a 3" cone/4 ohm coil.

[GearHungry]

I'm not talking about the speaker enclosure, with the grill and all, that holds both the mid and the tweeter, but the speaker (component) itself. I've already taken apart the satellite enclosure and removed the speaker. That's how I found the model number and impedance rating of the mid speaker itself.

I'm thinking (though I've never tried this before) if I just pry the metal can apart, the is part of the speaker, not the cone part, but the metal can that holds the magnet/coil assembly, I could possibly find wherever it is that the coil has separated, or burnt open, and simply solder it together at that point, fixing the speaker. Then I would have to press the can back together, and solder the speaker leads back in parallel with the tweeter leads, onto the speaker cable that plugs into the other satellite. Of course, after prying the can apart, I might find the job impossible, or more difficult than it seems, as the coil wire may be too fine to deal with or re-solder. Not having done it before, at this point, it's all guesswork.

The easier choice would be to find a replacement component, the actual speaker, part no. A2156, or a satisfactory equivalent in a 3" cone/4 ohm coil.

Here's approximately what I'm talking about:

http://www.parts-express.com//pe/sho...number=289-084

[JBL 4645]

The soldering should be simple if you have a steady hand and good light in the room. Poor light gets a poor job done.

[GearHungry]

The soldering should be simple if you have a steady hand and good light in the room. Poor light gets a poor job done.

Okay. I'm quite confident in my soldering ability. Plus, I always use an l.e.d. headlamp for light, when I'm working, no matter what the project.

I just wonder if I can pry open the can without damage to the coil. At least I think that's where the coil resides.

Oh well,,I suppose there's no way to tell unless I try. I already tried once, with a flat screwdriver, and it was too tight, and I ended up bending the metal a bit. If I go the same route again, the metal will surely have some damage, but at least it's not damage to the cone.

I don't think these things are made to be taken apart. Like so many things these days, it's only designed for replacement, not repair.

I've been studying the subject of speaker replacement on the following page: http://www.parts-express.com/resourc...cement.cfm#rel It gets quite complex, but interesting. I found this page from the following thread, on diyaudio.com :

http://www.diyaudio.com/forums/multi...ing-acs48.html

this ^ thread is the only link I've found so far to anyone else giving a go at repairing the mid speakers in this system, but it's from 2008, and I'm not certain I can still find a speaker that will match. I'm looking at things like "frequency crossover", and "loudness", to match the speaker to the system. Now I've got to try to get the original specs on the system itself.

It's a lot of work, but they're my son's computer speaker system, and he's happy with it, because it has a wooden subwoofer enclosure, something that's hard to find these days, I guess.

[toadz01]

On one of the satellites, the mid-range speaker quit. I measured infinite resistance, no continuity between the speaker terminals (after disconnecting the tweeter leads), so I know it's the coil, and need to either get inside it to solder it back together, or buy a new speaker or two (just so they match). I already tried prying the speaker apart to get to the coil, but it seems a pretty tight press fit, and I'm willing to give it up if I can just buy some/one.The speaker in question is from an Altec Lansing ACS48 computer speaker system. The numbers on the back of the speaker itself are as follows:A21564 ohm980506It's a 3" diameter cone.Thanks for any responses.

GearHungry, I saw a video on utube. the guy was installing a speaker he found that would fit the enclosure. I bought 2 and installed them and they are fine. The originals were 20 watt shielded. The ones the utube guy got were Visaton FRS8 from Amazon. They are under $20. Same 4 ohm but 30 watt and not shielded. Hope this helps after 14 years. toadz01

[1audiohack]

… Hope this helps after 14 years. toadz01

He knows. You must have missed the last sentence Heather.

Maybe it can help someone else?

Barry.