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In the Forum: Horn-Loaded Speakers
In the Thread: The most promising “best” commercial speaker
Post Subject: Alphas, Betas, Gammas...Posted by Romy the Cat on: 3/8/2007

Keith,

you see, in Alphas the MF driver does down to let say even 500Hz then it mans that they need to bring those bass W-bins unto 500Hz but it is imposable even theoretically. Let me to expanse, it I very simple. When a “reflected” horn fires up and if it operates in more or less wide bandwidth then HF harmonics gets consumed by the reflection in the horn much more aggressively then LF. This has tow very bead effects. First, we have to increase voltage on the bass horn because a LOT of it’s HF output is got eaten in the W-turns, this way we loose sensitively and gains distortions (exertions). Seconds no mater what we do we have an upperbass that sounds absolutely unnatural because harmonically the HF of this upperbass are more “dry” then LF. It sounds like overly dry fur if you know what I mean….A normal range of any W-bin solution is 1-1.5 octave, let say form 30 to 80… all the rest is juts  does not work… In fact I very much feel that in order to make that Alpha’s bass to run all the way up to 500Hz they had to EQ down the bottom of the bass range (here is what the sensitivity got eaten). In the Betas and Gammas the did not have this probelms and they have 109dB sensitively…

Anyhow, the Ralph has the Gammas at his home… Well,  I will put him in my list of “Interesting Germans” and if I go once again in my trip to “discover Germany” then I most likely will ask him to exercise his hospitality. Those Gammas, if Cessaros were able to get any noble tone out of the TADs drivers (a big question mark!!!) I feel are that most lucid speakers what that I have ever seen made commercially. Ask Ralph to bring you in his home and to listen those Gammas. It should be a very educational experience for you.

Rgs,
Romy the caT

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