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Romy the Cat wrote:

The tweeter is sitting at 1.5K, first order.  That is king of low crossover point for tweeter but it is OK. The problem that I see that with this time of the filter and a compression driver used I think the horn for the tweeter shall have around 700Hz mouth. I do not see in the Anima tweeter this mouth; it more strikes me as 3KHz mouth. So, I feel that for this crossover point the HF horn shall be larger, in this configuration there is even a great space for it. It is not to mention that larger/deeper horns will calm down a bit that Titanium dome.

KLegind wrote:

It looks like a 1kHz tractrix horn to me (maybe 800Hz). I have one though it's from Stereo Lab.

Well, let see. For a regular Tractrix we would need a mouth with the following diameters:

800Hz -135.3mm or 5.3 inches

1000Hz -108.2mm or 4.3 inches

1500Hz -72.2mm or 2.8 inches

You might be right – my initial estimate was not correct and Anima tweeter horn does look like having 5”-6” mouth, even though it is hard to judge from the picture the exact size.  If it has 5”-6” then it would make it suitable for 1.5K crossover.  Thanks for pointing it out.

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