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E-v-e-n-t-u-a-l-l-y!!! Eventually the new “fundamentals channel” horn sounds as it should being incorporated in my Macondo!  The key was the  second order. I really never drove compression drivers to their 500Hz as I always used upperbass horns that give me quite a luxury to utilize MF drivers in very sparing mode, using shorter MF horns with wider dissipation and less beaming. I was always suspect that the folks who use 500Hz 6dB/octave crossovers in typical the 330horn is horno-BS. Now I concluded that, at least with S2, and use 250Hz horn I can not go lover then 1350Hz…. Not god for my objectives to us the “fundamentals channel”

I put today second order into the game to lover the crossover point. The lover I able to go was ~500Hz arithmetically. I did not have correct values and the filter turned out to be something between Bessel and Butterworth. The response got was following:

The sound of the complete systems with the new hors? Absolutely wonderful – something that I, in a special way, was targeting and hoping. The transients at lover mid range become faster, somewhat “crisper” and more coherent but at the same time did not loose their “harmonic puffiness” (I will look it this further though). The lower MF got filed with very noble, typical for the Vitavox S2, tonal nuances with very high tonal contrast. Actually the entire sound became more transiently-realistic andmove even – very pleasant and very hoped feeling.

The honk? Not there anymore, although I still will raise the crossover point to >-500Hz. I am listening now the things that destroy practically any horn installation if any, even remote. signs of honk is hiding in a system: the contralto singers. The Marian Anderson’s Schubert and Ewa Podlles’ Tchaikovsky, Stravinsky and Mussorgsky - what would be more complex for the lover midrange and upperbass? The Podlles’ “Songs and Dances of Death” really got me and ....it is after hearing is many-many times…

I think that this “transient evenness” makes the total dynamic to perceive as slightly higher. I do not know why but it sounds this way, or perhaps today electricity is better tonight. Anyhow, it was the very first very positive result and I will capitalize on it. I did not asses imaging and many other factors but for a time being I’m ordering the coils for a perfect Bessel curve (will measure the impedance at the band-pass frequency) and will fine-tine the new drivers at 600Hz, second order. I begin to be very optimistic about the new horn…

Rgs,
Romy the caT

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