Do 511E and 311-90 really have the same basic specs as this seller claims?
What are the chances of this being an authentic pair since there doesn't appear to be a trace of aqua-plas on them?
Vintage Altec Lansing 511-E Horns (pair) w/ 288-16 Dvrs - eBay (item 230395083495 end time Nov-09-09 14:33:59 PST)
Not all vegetables make good leaders.
I am a current owner of a pair of authentic 511E/288-8G's. To answer your second question, I would have to say, slim & none. From the photo's, they look like hacked 511B's. He didn't even know enough to get the color right, let alone the aquaplast. Must have a great ring to them with the large format drivers.
I've never used the 311-90, but I doubt we would've mf'd two horns with the same spec's.
I got a pair of 511e's and gpa 288H drivers. I doubt he sandblasted them, which is probably the only way to remove the aquaplas.
But they may be perfect for the task, I dunno, can't tell. My pair of 511e's...well the throats were terrible and it cost me two days of slowly smoothing the throats out
with a grinder on an electric screwdriver, sandpaper and fill. But that's where the quality of the horn will play out. If I had the time I would buy up 2 or 3 dozen 511b's and convert them proper. Anyway, I would ask the guys for pics of the throats before considering purchasing them.
Do 511E and 311-90 really have the same basic specs as this seller claims?
I didn't read the blurb, but the 311 is a larger horn and will properly load the driver lower than the 511e.
Interestingly, there doesn't seem to be published specs on the 511 with detail to the degree of those published for the 311-90 which has a published low cut-off of 220hz, i don't for a minute believe a 511 is capable of that, but there's still folks who believe the earth is flat
I have another question or two for you fellas that own authentic examples, excepting the throat/driver flange, are they dimensionally identical to the 511A/B?
Both the '75 and '78 pro catalogs list a peculiarly odd set of dimensions for the 511E. I know we've discussed this before, but was a firm conclusion ever reached that verifies the dimensions in both catalogs to just be plain wrong?
Not all vegetables make good leaders.
I've never had 511b's at the same time to compare, but the 511E may be a factory modified 511b. I think other people believe the same thing, and some of them may feel justified in calling their own custom job a 511E. The factory 511E is gray, and aquaplas coated and the welds in the sector fins have been removed (or not done) and filled with (I think) aquaplas as well. Even hanging in the air they only thunk when thumped.
I second the statement about the metal flow left in the throats of the factory 511E's. Some of the one's I've seen were pretty bad.
I don't think there is any reason an authentic 511E should end up looking like those horns in the sale. They might work, after a fashion, but their value, to me, would be less than that of a useable 511b.
I have both. The 511E's I have, have the original dark grey color, aquaplas coating and original stickers with serial numbers on them. They are nothing more than modified 511A/Bs...trust me... I have viewed the catalog you referred to that intimates larger size... but until someone has a set and can provide incontrovertible proof....I'm convinced the catalog is garbage.Originally Posted by bowtie427ss
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