![]() ![]() In my opinion, this is not necessary at all for use in normal listening rooms. What I want to say is that it is not possible to achieve such wide radiation for a very low-loading horn similar to a fin horn. The William Neile ALO horns use what I call natural dispersion instead but with it’s own limits one has to accept. So to speak the TH4001 is a good performer but has some serious design issues. I have developed an improved version of different curved fin arrangement which implements equal path lengths of each channel together with the right and exact opening angle for proper exponential acoustic loading, but this is another story. ![]() However, I am of the opinion that the known underlying assumption for the construction of fin horns, especially the fin shape and arrangement, does not lead to a coherent wavefront over all frequencies at the exit of the individual channels. ![]() The category of the so-called fin horns seems to me to be quite popular and their good sound properties are usually reported. Also because the new 1in4 William Neile ALO horn is supposed to replace my current TH4001 which is a good sounding horn so the expectations are set quite high. This is the next logical step on my agenda. The second part of this article series deals with 1in4 (1.4 inch) William Neile ALO horn. ![]()
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