I recently made some highly attractive changes with the way in which I use S2. Now, since the S2’ top got cleaned up the universal misery of universe bothers me tremendously. :-)
Really, the S2 runs in my 400Hz horn up to 12.5kHz and the S2’s 12.5kHz sound more effective then TAD 4001’s or JBL 007’s 20kHz. I was trying to compliment the S2 with tweeter but it really unnecessary. Most of people out there use the S2 in thier default 330Hz 26” horns that put the driver deeper into the horn where it cuts-off ~2kHz. With the shorter horn the last 2khz jumps out and the S2 do not really need any tweeter. Well, it would be nice to have one (do not ask me why – probably juts in order to please my spectral-analyses) but I do not think there is any tweeter out there the would be able to handle what S2 dose at 12Khz.
Now, how should I use the bottom end of the S2? This is real dilemma! From one perspective I might drop the crossover point and drive it at 500Hz into 250Hz horn. But then I will loose 2kHz at the top. I’m clossing now the upperbass at 70Hz where the S2 kicks in… So, I was wondering.... How about to palace the S2 into an ultra-small ~5kHz horn and then to compliment it from bottom with another S2 in 250Hz horn at 500Hz. In the 5kHz horn the S2 will push probably 16hz and it will be HF that would be untouchable. Ay the bottom this HF channel will face the identical driver in a larger horn. The lower knee of the HF channel would decay acoustically with the horn rate and the low pass on the MF would be a first order. Considering that the are identical drivers it would not be problem to have a tail of any length in there…
Hm, this sounds quite interesting. At the bottom S2 channel I would use probably a plastic diaphragm as they can dissipate more power and less prone to that cracking… This sound quite attractive… Did anyone went to those extremes of Votavoxisisation?
From a different viewpoint now I have the S2 running in it’s optimum configuration for 4-way installation: S2 has a spare octave at the bottom allowing a nice midbass channel entry and it sits in a shorter and wider horn allowing to use it’s maximum HF. What the hell I want from it? I want somebody else to try and tell me how it was… Then I would object it... :-)
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche