811 horn mod

[Phil-G]

why?? just why?
Altec Lansing Horns | eBay

[Earl K]

Inspired by ( IME );

[Elitopus1]

I saw those when they were first listed (for a lot more money). It’s crazy how much they look like the EH800.

I like how the devaned 811/511 look. I’ve never heard a devaned pair though.

[Phil-G]

Shrimps are better devained

[Old Guy]

Shrimps are better devained

And it's hard to tell if all your love's in vain.

[GM]

They beam more over a wider BW plus have stronger (lower frequency) eigenmodes reflecting back to the throat, modulating the driver, which some find more 'musical', but ideally needs a super tweeter horn. There use to be some measured responses for the 329 horn, but no joy just now.

[Phil-G]

I would have to think the fins had some sort of reason.

[Elitopus1]

Maybe we could call the devaned 811/511 “Altec Shrimp”

[GM]

Right, they break up the otherwise large eigenmodes into a bunch of smaller ones for a smoother mids plus a diffused increase of HF response. Note all those little squiggles in the ~2 - 5 kHz BW, increased HF beginning down around 12.5 kHz dip.

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