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Old 29th October 2005, 09:19 PM   #1
tade is offline tade  United States
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Default altec lansing 288c drivers

I salvaged several altec lansing model 288c compression drivers and horns out of the trash at my school. are these hi fi? Would they be worth building a loudspeaker out of them? if i can get six how about a line array of three horns apiece? : )
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Old 29th October 2005, 10:52 PM   #2
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http://cgi.ebay.com/1-Matched-Pairs-...QQcmdZViewItem

I would say you are quite lucky
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Old 30th October 2005, 12:20 AM   #3
tade is offline tade  United States
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wowwww. I guess so. What happens if i run one using an eight ohm out on my amp? Will it not be as loud?
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Old 30th October 2005, 01:44 AM   #4
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Actually they are of little value and need to be disposed of in a special way so you'll have to send them to me I'll look after them. This is a free service for diyAudio members only.

What a great score tade!

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Old 30th October 2005, 05:18 PM   #5
tade is offline tade  United States
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: )

So at 115db efficiency, i can run these off of a sonic impact amp? i can be sure to never blow them that way at least!

Now i have a problem though, I am thinking two horns with two dayton rs hifi subwoofers crossed at 500hz. The subs sound great, but i only have one... How much money am i willing to put into a sound system!?
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Old 14th November 2005, 09:28 PM   #6
tade is offline tade  United States
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these altec horns are quite large. I was wondering if i could biuld new horns with them that would sound better, and be smaller. Or, is what i have the best i can easily achieve?

The horns came with the drivers and are rated to 500hz:

http://i10.ebayimg.com/01/i/05/63/e7/1d_3.JPG
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Old 15th November 2005, 06:22 PM   #7
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Yes you can build new horns but those are just fine. Those appear to be the 805's. What you might want to do is to damp the outside with either putty or a combination of latex paint and sand. This will reduce the ringing considerably. If not, the offer's still there for free disposal. How many of them do you have?
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Old 15th November 2005, 07:20 PM   #8
tade is offline tade  United States
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Hmm, your interest is certainly persuading me to get rid of them...

Yes, i certainly do not want to worry about coating them, too much work. I have five horns and drivers. Most of the horns were damaged when they were thrown away, but mostly just dented. Nothing a hammer cannot straighten out. I think i am going to sell one of the drivers and horns to fund the rest of the system. Maybe a BLH for under 500hz. Ill probably biamp the system and use a little tube amp for the horns. Do you think i will need a tweeter, or rather woud you?
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Old 15th November 2005, 08:21 PM   #9
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Quote:
Originally posted by tade
I have five horns and drivers. Most of the horns were damaged when they were thrown away, but mostly just dented. Nothing a hammer cannot straighten out. I think i am going to sell one of the drivers and horns to fund the rest of the system.
Five horns & drivers? Dude, two words: Home Theatre.
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Old 15th November 2005, 11:24 PM   #10
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My old ears don't need a tweeter but if you're young and have pristine hearing then perhaps you'll need a supertweeter. I think you can get to 15K with those.

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